Metal ceilings. OWAtecta. OWAtecta Why metal ceilings. Planning with OWAtecta Variety formation of the ceiling

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1 These products meet the Ecolabel requirements for Low-emission thermal insulation and ceiling products designed for use in buildings, RAL UZ 132 (October 2010 edition). Metal ceilings OWAtecta OWAtecta Why metal ceilings Metal ceilings are different. The density of their surface and the aesthetic restraint of their design offer the architect and builder particular creative options and solutions for many types of building projects. In the OWAtecta metal ceilings programme we have a wide range of tiles in galvanized sheet steel and aluminium with a powder coated paint finish. Planning with OWAtecta Variety formation of the ceiling OWAtecta is a ceiling system range that is designed to provide solutions for all installation situations. With its diverse design concepts it suits not only new building projects but can also be used with confidence in the framework of renovation and refurbishment projects. The metal tiles provide particularly good acoustics by virtue of the different surface perforations that also contribute to the overall design pattern on the tiles. The tiles can be installed in several different ways: lay in, clip in, hook-on and bandraster hook-on. The necessary suspension sections and components are all available from the OWAconstruct programme: for example hangers, main runner sections, cross sections, wall trims and wall springs etc. Perforation Patterns The geometry of acoustics OWAtecta tiles are available with various different surface perforation patterns from large holes to the very finest micro-perforations. These facilitate the optimization of reverberation times to suit the acoustics and design requirements of areas. OWAtecta perfora Acoustic ceilings control the sound OWAtecta perfora metal ceiling tiles were developed in close cooperation with the Fraunhofer-Institute for Building Physics (Stuttgart) and were patented as a metal ceiling with micro-perforations. The optimum acoustic feature of these steel tiles is the 40,000 tiny holes per m 2 that provide the reduction of sound energy and a balanced relationship of sound absorption and sound reflection. An interesting visual effect: the micro-perforations are not visually perceptible at a normal distance from the ceiling. The ceiling therefore has the appearance of a plain un-perforated monolithic type surface. Also, because only 0.64% of the ceiling surface is open, the light reflection value is similar to a an un-perforated surface. Fire protection with OWAtecta Gain time - through fire resistance Our suspension systems used in conjunction with OWAcoustic tiles and combined with the soffit structure give fire protection for up to F 90. Clean rooms with OWAtecta OWAtecta ceilings for hygiene-sensitive areas Chemical resistance of OWAtecta ceilings Positive/negative pressure OWAtecta ceilings OWA carried out extended tests with its OWAtecta metal ceilings complying with the standards of the above mentioned areas. Ceilings for clean rooms according to EN ISO Ceilings for hygiene-sensitive areas according to the DGHM method Chemical resistant ceilings according to ISO and ISO , -6 Positive/negative pressure ceilings following EN 1026 and EN For further information please see OWA brochure No. 398 E. Cooling with OWAtecta Mild cooling, that comes from above Air-conditioning increases well-being and efficiency in work areas. In cooperation with manufacturers of technical cooling components, we have developed OWAtecta Cool ceilings for mild coolness that sinks quietly into the area. T 1.0

2 OWAtecta Perforations P: Perfora 0.5 mm hole diameter 0.64 % open area B: Rg mm hole diameter 1 % open area F: Rd mm hole diameter 11 % open area K: Rd mm hole diameter 22 % open area J: Rd mm hole diameter 20 % open area E: Rg1821 1,8 mm hole diameter 20.8 % open area L: Rd mm hole diameter 8 % open area D: Rg mm hole diameter 16 % open area G: Rd2535 (diagonal) 2.5 mm hole diameter 35 % open area T 1.0

3 Perforations OWAtecta L: Rg mm hole diameter 12 % open area M: Rd3013 (diagonal) 3.0 mm hole diameter 13 % open area N: Rg mm hole diameter 26.5 % open area H: Rd3025 (diagonal) 3.0 mm hole diameter 25.1 % open area W: Rg mm hole diameter 28.6 % open area T: Rd mm hole diameter 11 % open area U: Rg mm hole diameter 22 % open area Q: Rg mm hole diameter 23 % open area 14.0 Rv3136 3,1 mm hole diameter 36 % open area T 2.0

4 OWAtecta Perforations Y: Qg x 4 mm 25 % open area 4.0 R: Qg x 8 mm 43 % open area 8.0 V: Qg x 10 mm 59.2 % open area t1= S: Lg /3 mm open area, variable 25.0 C: Lg /2 mm open area, variable O tl=5.0 a = minimum 10 mm O t2=schritt a = minimum 10 mm Technical Data Material galvanized sheet steel (according to use) Reaction to fire A1, A2-s1,d0, A2-s2,d0 to EN Thickness Colour from 0.5 to 1.0 mm (according to perforation) powder coated white Light reflection from 60 to 90 (ISO , ISO ) Sound reduction* from 12 db to 44 db Sound absporption from a w = 0.50 / NRC = 0.50 to a w = 0.95 / NRC = 0.95 (with perforations) Fire resistance* from F 90 (DIN 4102) *Dependent an system, soffit and other factors T 2.0

5 OWAtecta perfora OWAtecta Magnified cut out Technical Data Material galvanized sheet steel Reaction to fire A1 to EN Thickness 0.5 mm Colour similar RAL 9010 Light reflection approx. 86 (ISO , ISO ) Sound reduction* from 15 db to 44 db Sound absporption a w = 0.40 / NRC = 0.50 Fire resistance* up to F 90 (DIN 4102) * Dependent on system, soffit and other factors T 3.0

6 OWAtecta OWAtecta perfora The idea of increasing the sound absorption of a tile with micro holes came from China. OWAtecta perfora metal ceilings with micro perforations was developed as a result of a joint German-Chinese programme led by the Fraunhofer-Institute for Building Physics (Stuttgart). The optical effect The perforated metal ceiling has the same aesthetic effect as an un-perforated ceiling. The micro perforations are barely perceptible at a normal distance from the ceiling height. High light reflection Despite having a perforated surface, the light reflection of the ceiling hardly differs from that of a plain closed ceiling surface. The reason: only 0.64% of the surface is open leaving over 99% as a reflective surface. The acoustic principle The sound path through millions of micro-perforations, with a diameter of <0.5 mm, causes viscous friction at the hole edges to occur and therefore a reduction of sound energy. Reverberation time measurements clearly show that an optimum reverberation time can be achieved. Sound absorption Despite the relatively low sound absorption, an optimal reverberation time submits to the area. The lack of absorption at high frequencies has little noticeable effect due to the positive effect of high absorption at low and middle frequencies. A test: The test was made in a classroom measuring 10 x 7 x 3 m. Firstly, using a plain metal ceiling tile, the reverberation was measured in each case with and without the presence of students. Test result: Two curve paths clearly show that the yielded values are above the required optimal reverberation times. The ceiling was then dismantled and, under identical area conditions, an OWAtecta perfora ceiling with 40,000 tiny holes per sqm was installed. Again, it was measured with and without students. Test result: Here, both curves lie in the area of the required reverberation time that represents optimal acoustic conditions regardless of how many occupants there were in the area in each case. Required reverberation time T [s] Plain: without students with students Frequency f [Hz] Perfora: without students with students required reverberation time Suspension height H [mm] System drawing; micro perforated absorber Sound conlusion Micro perforated absorber Panel thickness t = 0.50 mm Diameter d = 0.45 mm Hole distance b = 5.00 mm Hole depth H = variable Open surface = approx % 0.0 Sound absorption to EN ISO 354 Frequency 125 Hz 250 Hz 500 Hz 1 khz 2 khz 4 khz NRC a w H = 200 mm (LM) H = 400 mm (L) For test certificate see brochure No. 358 T 3.0

7 Systems OWAtecta Example design H: Rd3024 System S 22 Clip-in system System S 31/S 32 Clip in tile System S 31/S 32 L Clip in Linear planks System S 36 L Linear planks System S 33 Lay in tiles for 24 mm grid System S 45 Lay in tiles for 15 mm grid System S 36 Corridor System System S 39 Hook-on Linear tiles with Z-Section System S 42 Baffl es System S 48 Bandraster (C-Section) System S 50 Bandraster with lock point System S 55 Sport panel (Impact resisting) System S 60 Magnetic Pin board wall absorber T 4.0

8 OWAtecta System S 22 S 22 Clip-in system Technical Data Product linie: OWAtecta 6 7 Dimensions: 600 x 600 mm 625 x 625 mm Thickness: Galvanized steel approx. 0.6 mm Reaction to fire: According to use A1 A2-s2,d0 to EN Nonius lower section 2 Main tee 3 Cross connectors 4 Clip-in profile 5 Clip-in profile splice 6 Wall trim 7 Wall spring 8 Metal tile Edges: Clip-in system 01 Suspension system: All metal parts galvanized as well as white painted. Minimum suspension depth: Suspended installation approx. 135 mm Direct fixing installations approx mm Fire resistance: on request Cross section: T 4.0

9 System S 36 L concealed, demountable OWAtecta Technical Data Product line: OWAtecta Dimensions: 1500 x mm 1500 x 400 mm 2000 x mm 2000 x 400 mm 2500 x mm 2500 x 400 mm Thickness: Galvanized steel approx. 0.6 mm Reaction to fire: According to use A1 A2-s2,d0 to EN Edges: Long edges: K 10 Short edges: K 02 1 Hanger 2 Main runner 3 Coupling 4 Cross connector 5 Security clip 6 Clip in section 7 Connector 8 Wall spring clip 9 Wall anchor 10 Wall trim 11 Swing down spring clip Suspension system: All metal parts galvanized as well as white painted. Minimum suspension depth: Suspended installation approx. 135 mm Direct fixing installations approx mm Cross section: 9 Fire resistance: on request 10 T 5.0

10 OWAtecta System S 31/S 32 Image: S 31 S 31 Clip system Concealed, demountable S 32 Clip system Concealed, swing down Technical Data Product line: OWAtecta Dimensions: 600 x 600 mm 625 x 625 mm x 600 mm x 300 mm 1800 x 400 mm Other sizes available on request. Thickness: Galvanized steel 0.5 mm nom. Aluminium 0.6 mm nom. (only System S 31) 1 Hanger 2 Main runner 3 Coupling 4 Cross connector 5 Security clip 6 Clip in Section 7 Connector 8 Wall anchor 9 Swing down spring clip (only with S 32) 10 Wall spring clip 11 F-Wall trim 12 Direct fixing hanger 13 Tile width 14 Tile length 15 Metal tile Reaction to fire: According to use A1 A2-s1,d0 A2-s2,d0 to EN Edges: Long edges 01 Short edges 01 S 31 Cross section: Suspension system: All metal parts galvanized as well as white painted. Minimum suspension depth: Suspended installation 200 mm nom. Direct fixing installation mm nom. Fire resistance: On request S 32 Cross section: Swing down tiles: Linear tiles swing down from the short side Direct fixing: For further information please see Brochure No. 331 T 5.0

11 System S 33/S 45 S 33 Exposed, demountable = 24 mm grid S 45 Exposed, demountable = 15 mm grid OWAtecta Technical Data Product line: OWAtecta Fig: S 33 Dimensions: 600 x 600 mm 625 x 625 mm Only K x 600 mm Other sizes available on request. Thickness: Galvanized steel 0.5 mm nom. Aluminium 0.6 mm nom. Reaction to fire: According to use A1 A2-s1,d0 A2-s2,d0 to EN Hanger 2 Main T-Section 3 Cross T-Section 4 Wall channel 5 Wall Spring clip 6 Module distance Edges: Section: S 33 6 K 03 K 07 K 04 S 45 Cross section: 6 K 03 K 16 Section dimensions: Suspension system: All metal parts galvanized as well as white painted. S 33 Main T-Section Cross T-Section S 45 Main T-Section/Cross T-Section Minimum suspension depth: mm (depending on the soffit). For ease of removal 120 mm Fire resistance: On request For further information please see Brochure No T 6.0

12 OWAtecta System S 36 Corridor - Construction Technical Data S 36 Success Product line: OWAtecta Dimensions: Widths: from mm Lengths: from 600 to 3300 mm Up to 1200 x 1200 mm According to use Thickness: mm nom. depending on static requirement S 36 Swing Reaction to fire: According to use A1 A2-s1,d0 A2-s2,d0 to EN Edges: Long edges: K 10 Short edges: K 32 K 03 K 02 S 36 Progress K 11s Suspension system: All metal parts galvanized as well as white painted. Minimum suspension depth: mm (dependent on soffit type) For ease of tile removal 300 mm 1 Carrying angle 2 Hanger 3 Clip-in section 4 Angle brackets 5 G-Section 6 Primary Section 7 Security clip 8 Z-Section 9 Wall anchor 10 Z-Hanger clip 11 Metal-Linear tile Fire resistance: on request T 6.0

13 System S 39 Hook-on linear panels with Z-Section OWAtecta Technical Data Product line: OWAtecta Dimensions: Widths: from mm Lengths: from 600 to 3300 mm Up to 1200 x 1200 mm Thickness: mm nom. depending on static requirement Reaction to fire: According to use A1 A2-s1,d0 A2-s2,d0 to EN Edges: Long edges: K 10 1 Hanger 2 Primary Section 3 Connector 4 Wall anchor 5 Cross connector 6 Security clip 7 Z-Section 8 Wall spring clip 9 Wall channel 10 Metal-Linear tile 11 Joint band Short edges: K 11 Suspension system: All metal parts galvanized as well as white painted. Section: Minimum suspension depth: mm (dependent on soffit type) For ease of tile removal 300 mm Fire resistance: on request Cross section: T 7.0

14 OWAtecta System S 48 Bandraster (C-Section) Technical Data Product line: OWAtecta Dimensions: Widths: from mm Lengths: from 600 to 3300 mm Up to 1200 x 1200 mm Thickness: mm nom. depending on static requirement 1 Hanger 2 Primary Section 3 Connector 4 Wall anchor 5 C-section 6 Hanger 7 Security clip 8 Wall channel 9 Wall spring clip 10 Metal-Linear tile 11 Joint band Reaction to fire: According to use A1 A2-s1,d0 A2-s2,d0 to EN Edges: Long edges: K 10 Short edges: K 13 Section: Suspension system: All metal parts galvanized as well as white painted. Minimum suspension depth: mm (dependent on soffit type) For ease of tile removal 300 mm Cross section: Fire resistance: on request T 7.0

15 System S 60 Magnetic Pin-board absorber OWAtecta Technical Data Product line: OWAtecta Dimensions: 1500 x 400 mm Larger sizes on request Thickness: Metal Tile 0.6 mm nom. Sheet steel Mineral wool tile 15 mm nom. Reaction to fire: Metal tile A1 Mineral wool tile A2-s1,d0 to EN Edges: Long edges: K 10 Short edges: open Suspension system: All metal parts galvanized as well as white painted. Minimum installation depth: approx. 50 mm from wall surface Perforations: Rd2516 with fleece Rd3012 diagonal with fleece Ø 2.5 mm Ø 3.0 mm Open area 16% Open area 12% 1 Wall angle below 2 Wall angle lateral 3 Wall angle above 4 Filler band 5 OWAtecta Magnetic Pin-board absorber Cross section: Sound absorption gradient: Rg2516 with fleece and OWAcoustic tile a w = Rd3012 with fleece and OWAcoustic tile a w = An installation of at least 3 elements is necessary in order to make a perfect assembly. T 8.0

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17 Fire resistance OWAcoustic Tiles as a building material Standards EN and DIN 4102 part 1, separate building materials into the following classes according to their fire behaviour Building regs type designation non combustible Additional requests no smoke fire resisting 3 3 normal flammability easily inflammable No burning droplets European class to EN Building material class to DIN A1 A1 3 3 A2-s1,d0 A2 3 B-s1,d0 B1 3 C-s1,d A2-s2,d0 A2-s3,d0 B, C-s2,d0 B, C-s3,d0 A2-s1,d1 A2-s1,d2 B, C-s1,d1 B, C-s1,d2 A2-s3,d2 B-s3,d2 A2-s3,d2 D-s1,d0 D-s2,d0 D-s3,d0 E 3 D-s1,d2 D-s2,d2 D-s3,d2 E-d2 F The additional reference numbers mean: s1, s2, s3 [m 2 /sec 2 ] describes smoke intensity s1 = non or low smoke s3 = heavy smoke d0, d1, d2 = description of burning droplets d0 = no burning, droplets within 600 seconds B1 B1 B1 B2 B2 B2 B3 Copies of the Test Certificates are available on request. OWAcoustic premium tiles are available in Building Class A2-s1,d0. They are identified by the following marks: A2-s1,d0 to EN OWAcoustic premium OWAcoustic smart A2-s3,d0 to EN OWAlux 64/8 OWAcoustic clean 64/18 Country Test standard Classification EU-Member states EN A2-s1,d0 B-s1,d0 Germany DIN EN A2-s1,d0 B-s1,d0 Austria ÖNORM EN A2-s1,d0 B-s1,d0 Belgium NBN Klasse A 1 NBN Denmark DS 1056 Klasse A France Arrêté du 21 avril 83 M 1 M 0 Italy DM Classe 0 Netherlands NEN 6065: Vlamuitbreiding Klasse 1 NEN 6065: Vlamoverslag Klasse 2 NEN 6066: Rookdichtheid DL; h; max = 0,04 m - 1 Spain UIE M 1 Sweden SBN 1980 Klasse 1 Switzerland Wegleitung für Feuerpolizeivorschriften, 1976 VI q.3 quasi nichtbrennbar, Qualmgrad schwach USA ASTM E a class 1 United Kingdom BS 476 Part 7 BS 476 Part 6/Building regulations 1991 DOC B CE Z CE Z CE CE Surface spread of flame class 1 class 0 B 1.0

18 Fire resistance The fire resistance of soffits and roofs with suspended ceilings must be proved by fire testing to European Standards or national technical standards. Such tests were successfully completed with different OWAcoustic Ceiling systems. The OWA fire protection test certificates and the functionality assured in them are only valid when OWAcoustic ceiling tiles are installed in genuine OWAconstruct suspension systems. Printed test certificates are available. OWAcoustic Ceilings for building components A Building Component in the sense of EN is not the suspended ceiling alone but the total construction of the combined soffit and suspended floor or roof and suspended ceiling. This total construction should prevent the passage of fire for as long as possible. Requirement for independent self contained fire resistance ceiling units: Requirement for load-bearing structures Fire area Area to protect Area to protect Fire area Component parts are classified according to their class of fire resistance duration: Test designation Fire protection class Fire protection type EN DIN 4102 in min. fire retarding REI 30 F highly retardent REI 60 F fire resisting REI 90 F fire resisting REI 120 F high fire resistance REI 180 F Management supply services in the cavity above the ceiling need to be protected. Our self contained fire protection units achieve fire resistance values of class EI 30 (a < > b), F 30 to F 90. This means that escape routes beneath the fire are protected for up to 90 minutes. The same period of time that management supply services in the ceiling cavity are protected if the fire originates in the area below. B 1.0

19 Fire resistance Requirements for the total load-bearing building component: Soffit + suspended ceilings Supporting construction Soffits to DIN 4102 / EN / EN / EN Steel beams and steel reinforced concrete soffits Construction II Steel beam soffit with steel reinforced slabs with a tested ceiling construction Suspended ceiling construction Systems S 1 Concealed system Fire resistance Minimum floorboard thickness d [mm] Min. depth a [mm] F.-Class DIN 4102 OWA test no. REI-Class EN Test no F F S 9 Concealed system F demountable tiles S 7 OWAplan Plaster F / 496/07-CR - - Product line Construction III Steel-reinforced or concrete beam soffits with a tested ceiling construction S 3 Exposed system S 3a Exposed system with Contura tiles S 3 Exposed system with mineral wool S 15 Exposed system 15 mm wide S 15a Exposed system with Contura tiles S 18 Parallel-Bandraster with linear planks S 18 Cross-Bandraster with large format tiles F F F a REI / F F F F Porous concrete soffits (Gasbeton) Construction I Steel beam soffits with porous concrete S 1 Concealed system F S 3 Exposed system Steel concrete or pre-stressed concrete soffits with light concrete, or hollow pot interlays, in each case with a type of tested suspended ceiling. S 3a Exposed system with Contura tiles F Other constructions Soffits with ribbed concrete S 1 Concealed system S 3 Exposed system S 3a Exposed system with Contura tiles F F OWAcoustic premium OWAcoustic smart Further systems-related data can be found in OWA brochure no B 2.0

20 Fire resistance Requirements for the total load-bearing building component: Soffit + suspended ceilings Suspended ceiling construction Fire resistance Supporting construction Soffits to DIN 4102 / EN / EN / EN Timber beam soffits Construction IV Timber beams Systems S 1 Concealed system Direct fixing Minimum floorboard thickness d [mm] Min. depth a [mm] F.-Class DIN 4102 OWA test no. REI-Class EN Test no. 21** ~ 60 F Product line S 1 Concealed system 21** 245 F S 3 Exposed system S 3a Exposed system with Contura tiles S 1 Concealed system S 3 Exposed system S 3a Exposed system with Contura tiles S 3 Exposed system S 3a Exposed system with Contura tiles 21** 245 F REI Efectis- R0574 (E) 21** 245 F ** 245 F ** REI ** 245 F ** 300 F / Cold roofs Corrugated steel on timber panels S 3 Exposed system F * F a* - - Corrugated steel on timber panels S 3 Exposed system with Mineral wool F b - - Profiled metal on timber panels S 1 Concealed system with Mineral wool F c* - - Gang nail trusses with corrugated roof covering insulation + PE-foil e.g. aluminium S 3 Exposed system S 3a Exposed system with Contura tiles F / 8007 REI / 3473-CR Gang nail trusses with Roofing felt S 1 Concealed system Direct fixing - ~ 60 F e - - Warm roofs Profiled steel sheet with insulation Ribbed concrete + Promatect with and without insulation S 1 Concealed system S 3 Exposed system S 1 Concealed system S 3 Exposed system S 3 Exposed system S 3 Exposed system S 1 Concealed system F * F F REI / F / F * Resisted over 90 minutes against fire penetration. See OWA-Brochure 500 ** 21 mm floorboards or 19 mm tongue and groove chipboard B 2.0

21 F 30 SOLO Self contained fire resistance F 30 from above and below smoke impervious Technical Data Product line: OWAcoustic premium OWAtecta Dimensions: 625 x 625 mm see OWA price list Thickness: OWAcoustic premium tiles 40 mm Minowa -strips 30 mm Reaction to fire: A2-s1, d0 to EN Metal tiles: A1: A2-s1, d0, A2-s2, d0 to EN (Dependant on type) Edges: premium tecta edge 3 edge 03 edge 07 Weight: approx kg/m 2 1 Hanger 2 Main runner 3 Cross T-section 4 Perimeter trim 5 SOLO nail 6 Cover strip 7 F30 Solo tile 8 OWA adhesive 9 E07 Metal tile 10 E03 Metal tile Design: Constellation, Harmony, Cosmos other patterns on request Surface Owatecta on request Installation example: The F 30 solo ceiling consists of OWAcoustic premium 40 mm thickness tiles and 30 mm cover strips. Installation positions are marked on the tiles. Metal system: All metal components are galvanised and/or painted white. Other colours are available. F 30 SOLO elements marked are directly demountable. Important: Adjoining walls must have a fire resistance of at least class 30 minutes. The same is applicable to soffits with 30 minutes requirement from above. Cross section F 30 SOLO Metal: Cross section F 30 SOLO: For further details see Brochure 911 F 30 SOLO B 3.0

22 F 30 DUO Self contained fire resistance F 30 from above and below smoke impervious 1 Technical data Product line: OWAcoustic premium 2 Dimensions: 600 x 600 mm 625 x 625 mm 600 x 1200 mm 625 x 1250 mm Thickness: 95 mm to 100 mm Hanger 2 Insulating tube 3 Main T-section 4 Cross T-section Wall section 6 F 30 DUO tiles Section through Edge 3 Square edge Reaction to fire: OWAcoustic tiles Mineral insulation A2-s1,d0 to EN A1 Edges: Edge 3 Square edged 15 or 20 mm thick OWAcoustic tiles Edge 6 Contura, 20 mm thick OWAcoustic tiles Weight: approx kg/m 2 Section through Edge 6 Square edge Design: Constellation, Harmony, Cosmos Other patterns on request Metal system: Height of profile 38 mm. See System brochure S 3 or OWA Installation guide 801. All metal sections are galvanized and white painted. Installation example: Fire attack from above with modules 600 x 600 and 600 x 1200 mm Fire attack from above and below with 600 x 600 mm module Important: Adjoining walls must have a fire resistance of at least 30 minutes. The same is applicable to the soffits 30 minutes requirement from above = demountable tiles For further details see Brochure 911 F 30 SOLO B 3.0

23 EI 30 (a <-> b), F 30 barriere A, B Self contained fire resistance 30 minutes from above and below smoke impervious Technical Data Product line: OWAcoustic premium Fig.: F 30 barriere A Dimensions: Width Length barriere A 300 mm 1250 mm mm 1500 mm 400 mm barriere B 300 mm 1800 mm mm 2000 mm 2250 mm Thickness: barriere A barriere B 40 mm 44 mm Reaction to fire: A2-s1,d0 to EN Edges: barriere A LE 10 / SK 3 barriere B LE 1b / SK 3 Weight: barriere A approx kg/m 2 barriere B approx kg/m 2 1 Hanger 2 Support sections 3 Bandraster section 4 Connector 5 L-section (2 pcs.) 6 barriere section Section through barriere A: distance between axes 7 Minowa cover strips 8 Infill (alt. strips as 7) 9 Barriere unit 10 Wire nail to prevent lateral movement 11 OWA adhesive Design: Constellation, Cosmos, Harmony Other patterns on request Important: Adjoining walls must have a fire resistance of at least class 30 minutes. The same is applicable to soffits with 30 minutes requirement from above. Section through barriere B: Cross sections: barriere A barriere B Layout examples: For further details see brochure 915 F 30 barriere Fire protection kits for recessed light fittings are available on request. B 4.0

24 BSE 90 Self contained fire resistance F 90 from above and below smoke impervious Technical Data Product line: OWAcoustic premium Dimensions: Widths: 300, mm Length: 2000, 2500 mm Thickness: 110 mm Reaction to fire: OWAcoustic tiles A1 to EN Gypsum fibre strips A2-s1,d0 to EN Mineral wool strips A1 Weight: approx kg/m 2 Design: Constellation, Harmony Other perforations on request 1 OWAcoustic tile 2 C-Section 3 Gypsum fibre strips 4 Traverse 5 Steel screw 6 Wall section 7 Mineral wool strips Density 40 kg/m 3 Important: Adjoining walls must have a fire resistance of at least class 90 minutes. The same is applicable to soffits with 90 minutes requirement from above. Section BSE 90 consists of 2 x 30 mm thick OWAcoustic boards. BSE 90 are selfsupporting structural components. Layout example: For further details see Brochure 918 BSE 90 B 4.0

25 OWAcoustic fire resistance kits For ceiling lighting and other built-in elements OWAcoustic fire protection kit, self-containing up to F 30, EI 30 (a <-> b) OWAcoustic premium panels 40 mm: Section F 30 SOLO: Section F 30 DUO: Module Installation: The fire box kits are supplied as prefabricated components and constructed on site. To assemble, the four sides are recessed to suit the OWAcoustic ceiling, then glued and pinned together with nails to form a frame. The frame is glued to the installed ceiling tiles and the top is then glued to the frame. OWAcoustic fire protection kits up to F 90 in connection with OWAcoustic premium panels 40 mm: Installation: The fire box kits are supplied as prefabricated components and constructed on site. To assemble, the four sides are recessed to suit the OWAcoustic ceiling and then pinned together with nails to form a frame. The frame is placed on to the installed ceiling and the top laid on to the frame to complete the box. These components are not glued together. OWAcoustic fire protection kit up to REI 90, F 90 in combinaton with OWAcoustic panels 15 mm: Section: ,5 14,5 14 nominal Installation: The fire box kits are supplied as prefabricated components and constructed on site. To assemble, the four sides are recessed to suit the OWAcoustic ceiling and then pinned together with nails to form a frame. The frame is placed on to the installed ceiling and the top laid on to the frame to complete the box. These components are not glued together. For more details see our fire box leaflet B 5.0

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27 Acoustics The continuous increase of noise levels in everyday life give sound protection an ever more important role, particularly in modern high rise developments. We are all entitled to live and work in a comfortable acoustic environment and to achieve this all project partners should be involved in the planning. OWAcoustic Ceiling Systems can be used to provide a number of acoustic benefits. The following simple chart shows the dual acoustic functions that can be provided by the installation of the correct OWAcoustic Ceiling System. Acoustics Room acoustics Building acoustics To optimize reverberation time To decrease noise levels ΔL [db] in production workshops areas To increase the airborne sound insulation R w [db] of solid and timber beam soffits as well as simple roof constructions To improve the linear airborne sound reduction D n,c,w [db] between adjacent areas To reduce noise intrusion from the ceiling cavity The following describes the areas of use for OWAcoustic Ceiling Systems greater detail. Room acoustics As a division of acoustics, room acoustics are concerned with the internal characteristics of specific areas. Wherever possible the proposed use of the room should be taken into account at the design stage. If the primary use requires good speech intelligibility, the interior design of the room will be different from that of a room whose primary use is music practice or recital. Where a room is to be used for both purposes a degree of compromise is required. The most important factors which influence the acoustic quality of an area: 1. Location of the room within the building 2. Sound insulation of the adjacent construction 3. Sound generation from services 4. Area shape and size (primary structure) 5. Sound absorption characteristic of all surfaces (secondary structure) 6. Furniture and equipment within the room (secondary structure) 7. Dimensions and spatial distribution of sound absorbing and reflective surfaces A 1.0

28 Area acoustics Reverberation time The reverberation time is the oldest and best known criterion in the field of acoustics. It is measured in seconds and is defined as the time taken for generated sound to decay by 60 db after the sound source has been stopped. Sound absorption Sound absorption describes the reduction of sound energy. The so called degree of sound absorption defines the relationship of reflected to absorbed sound energy. A value of 0 corresponds to total reflection - a value of 1 to complete absorption. If the degree of sound absorption is multiplied by 100, it provides the percentage of absorbed sound. L [db] Generated sound Sound is switched off 30 db T 60 = T 30 2 α = 0.65 means α = 0.65 x 100 % = 65 % of sound absorption (the residual 35 % is sound reflection) Background noise T 30 t [s] Absorption degree e.g % Sound absorption e.g. 75 % Reverberation time and equivalent sound absorption T = Reverberation = time V A Area volume Equivalent sound absorbing surfaces Reflection e.g. 25 % A = a Floor Surface Floor + a Wall Surface Wall + a Ceiling Surface Ceiling + Absorbing contents A... Equivalent sound absorption surface A is the total sound absorption situated in the entire area In 1920 W. C. Sabine published an article concerning the relationship between reverberation time, volume and sound absorption. Although complex computer programmes and simulations are now available, the principles of room acoustics still revolve around this simple equation. The equation: It is important to remember that the equation is based on a diffused sound field, i.e. an evenly distributed sound field in a room of equal proportions and not exceeding 2000 m 3 in volume. A 1.0

29 Area acoustics 0,50 0,60 0,75 0,95 1,00 0,55 0,60 0,70 0,85 0,85 2. Single figure sound absorption There are different reasons for using a single figure (e.g. α w =0.70): 0,20 0,30 1. Using the single figure result allows an easy product comparison and the selection of equivalent performing products. Futura α w = 0.70 / NRC = 0.70 Harmony α w = 0.70 / NRC = By using the single figure result products can be put into performance classifications. The disadvantages: 0,15 0,15 0,10 0,15 0,15 0,10 0,20 0,45 0,50 0,60 0,55 0,40 1. Even though the lab measurement obtains 18 different frequencies, the product will be selected due to the single figure of sound absorption, e. g. α w. Plain α w = 0.15 / NRC = 0.15 Universal α w = 0.55 / NRC = When searching for high absorbing products (e. g. Class A), it has to be taken into consideration not to acoustically over-correct a room. Practical testing turned out that products with α w = 0.90 don t achieve a much better reverberation time than products with α w = ,85 0,55 0,65 0,70 0,65 0,50 0,50 0,60 0,75 0,80 0,35 0,30 Cosmos 68/N α w = 0.65 / NRC = 0.65 Constellation α w = 0.70 / NRC = Measured Degrees of Sound Absorption α w The international standard ISO 354 does not provide a method of deriving a single figure result from the 18 frequencies tested. For this we use ISO which provides the method of calculating the single figure result with the use of a predetermined reference curve at 500 Hz. 1. Degree of sound absorption α s The degree of sound absorption describes how well a material can absorb sound. Testing a materials ability to absorb sound is measured in a reverberation chamber and carried out in accordance with DIN EN ISO 354. The test is carried out over 18 separate frequencies from 100 Hz to 5000 Hz and provides an absorption value for each of between 0 (total reflection) and 1 (total absorption). There are 6 frequencies generally used in the calculation of a room s acoustic characteristics, 125 Hz, 250 Hz, 500 Hz, 1000 Hz, 2000 Hz and 4000 Hz. Appendix B of ISO also provides a simple classification system to allow simple comparison of the single number value α w : Absorption Class α w -Value [-] A 0.90; 0.95; 1.00 B 0.80; 0.85 C 0.60; 0.65; 0.70; 0.75 D 0.30; 0.35; 0.40; 0.45; 0.50; 0.55 E 0.15; 0.20; 0.25 Non-Classified 0.00; 0.05; 0.10 A 2.0

30 Area acoustics 2.2 Noise Reduction Coefficient The U.S. Standard ASTM C 423 corresponds with the International Standard ISO 354. However, ASTM C 423 also provides a method of calculating a single figure result. The single figure is known as the Noise Reduction Coefficient and is calculated using the following equation. Acoustic comfort (Offices, Retail and Public areas) NRC = a 250Hz + a 500Hz + a 1000Hz + a 2000Hz 4 The result is reported in increments of Example: NRC = = 0.58 NRC = Noise reduction (production areas and factory buildings) Speech can only be heard clearly if background noise is controlled or kept to a minimum. The best way to achieve this is to ensure the correct balance between sound and reverberation. Office Dividers/Half Height Partitions If used in conjunction with a hard, acoustically reflective ceiling, acoustic screens may be ineffective and have little effect in providing any privacy. However an absorbent ceiling will complement the screen and assist in maintaining a much higher degree of acoustic separation when installed in an office where screens are used. The average noise level in a room is dependent on the sound source and the sound absorption. Increasing the absorption within the room will generally reduce the noise level, in practice by approximately 3 to 10 db. Double or Nothing To achieve an audible improvement the absorption within a room has to be increased by a factor of 2. Therefore, an increase of the absorption of the ceiling from 20 % to 40 % or from 40 % to 80 % is advisable, an increase from 70 % to 80 % will show very little, if any, noticeable improvement. A 2.0

31 Area acoustics Room acoustic planning with help from DIN 18041: Since May 2004 the revised setting of DIN Hearing balance in small and medium sized rooms has been available for acoustic planning. The following overview should help to understand the structure of DIN Users of this standard should essentially concentrate on the relevant areas under points 1 and 2. Overview DIN Hearing balance in small and medium size rooms Architects Builders User partners Building planner Space planner 1. Protection of hearing balance for verbal communication 2. Establishing the acoustic requirements, planning guidelines and measures Aims 3. Consideration of people with restricted hearing abilities Project scope relevant not relevant 1 Small to medium size areas with V = 5000 m 3 3 Exceptional areas up to V = m 3 General music General purpose Areas with special requirements Theatres Concert halls Cinemas Churches Recording studios 2 Sports and Swimming halls without people up to V = 8500 m 3 A 3.0

32 Area acoustics The relevant areas are subsequently structured as follows: Overview DIN Hearing balance in small and medium size rooms Arrangement Rooms in Group A Hearing balance over medium and longer distances Rooms in Group B Hearing balance over short distances Music Speech Teaching Classrooms with active music and singing Ballroom for instruction and musical performances Court and council chambers Community hall, meeting areas Music rehearsal area in music schools Sport- and Swimming halls with public Classrooms (other than music), lecture rooms Music classrooms with audio-visual performance Group areas in Nursery schools, Senior Day Care centres Seminar area, Inter-action areas Lecture halls Areas for Tele-Teaching Meeting and conference areas Performance area for electro acoustic utilization (e.g. Revue theatre) High occupancy and open plan offices Call Centres Sales areas, restaurants Audience areas, ticket sales areas Consulting areas Doctors/Lawyers offices Citizens Advise Bureaus Operating, treatment and recovery areas Reading and lending areas in libraries Work areas (e.g. teaching workshop) Busy public areas Foyers, showrooms and stairwells Sport 1 Sport 2 Sports and Swimming halls active, without people single course Sports and Swimming Halls without people, more activity several courses In what way do the two area groups differ? Areas in Group A Definite requirements are fixed. Areas in Group B Only estimates in respect of are given. A 3.0

33 Area acoustics Rooms in Group A Group A rooms are categorized by their use (music, speech, teaching, sport 1 and sport 2). The optimum reverberation time T [s] is dependent on the room volume and is shown as an acceptable time zone for each category in Group A. The reverberation time is a frequency dependent measurement. Because of this DIN provides an acceptable tolerance range for the use of Speech and Music. Music: Speech: Teaching: T R = [0.45 lg(v) ] s T R = [0.37 lg(v) 0.14] s T R = [0.32 lg(v) 0.17] s The required reverberation time T [s] is based on furnished, occupied areas. When unoccupied the reverberation time should be no more than 0.2 s over the required time. Frequency [Hz] The frequency depending RT (Reverberation Time) range for speech. For Sports and swimming halls with 2000 m 3 V 8500 m 3 is valid: Sport 1: T R = [1.27 lg(v) 2.49] s Sports and swimming halls for normal use without people for a single class (a class or sport group, with uniform communication content). Sport 2: T R = [0.95 lg(v) 1.74] s Sports and swimming halls without people for several classes (sport groups parallel with different communication content). Frequency [Hz] The frequency depending RT (Reverberation Time) range for music. Example: Classrooms fall into the educational use and have a predetermined performance requirement. For example, if we take a classroom with a volume of 180 m 3 the required rever-beration time T R [s] is calculated from the following formula: Teaching: T R = [0.32 lg(v) 0.17] s T R = [0.32 lg(180 m 3 ) 0.17] s The recommended RT range for a classroom with V = 180 m 3 : Reverberation time T [s] 1,0 0,8 0,6 0,4 0,2 T R = 0.55 s In practice there is a degree of tolerance and the reverberation time can vary by up to ± 20 % in the frequency range 250 Hz to 2000 Hz. 0, Frequency [Hz] Recommended reverberation time range for classroom with a volume of 180m 3 Frequency [Hz] T R, upper T R, lower A 4.0

34 Area acoustics Rooms in Group B Rooms that fall within Group B require good speech intelligibility over short distances and are described in accordance with DIN Through effective use of absorbing materials the total sound level and reverberation time in an area can be lowered. However, the reverberation time may not be in accordance with DIN The table below can be used as a simplified aid to estimate the action required in areas that belong to Group B. Read across from the appropriated Type of room until you reach the column with the sound absorption α w of the proposed product. This intersection will show a factor value (ideally no more than 1.0) which can be used to calculate the amount of surface area that needs to be covered (ceilings and walls). Type of room Call Centres with heavy communication traffic, work areas, ticketing and Banking areas, reception areas with public traffic Single or higher occupancy offices, large open plan offices with office machines, consulting rooms in Lawyers or Doctors offices, operating theatres Orientation values with sound absorber application to untreated ceiling and wall surfaces as a multiple of the floor area with a normal area height of approx m and with application of sound absorbers with one a w Restaurants, dining areas with a floor area over 50 m Stairwells, foyers, showrooms, counter halls, lobbies with heavy public traffic Example: Area type: Open-plan office (column 1, line 2) Solution concept 1: We would like to use a product with a sound absorption coefficient starting at α w = 0.50 e.g. (50 %). Area type: Open-plan office (column 1, line 2) Solution concept 2: We would like to use a product with a sound absorption coefficient starting at α w = 0.70 e.g. (70 %). Assessment 1: From the table, one gets the sum factor 1.4 With a product of α w = 0.50 approximately 140 % of the total ceilings and wall areas must be covered with absorbing material. Assessment 2: From the table, one gets the sum factor 1.0 With a product of α w = 0.70 approximately 100 % of the total ceilings and wall areas must be covered with absorbing material. Unrealistic Realistic A 4.0

35 Area acoustics Building acoustics Building acoustics is a division of acoustics that is concerned with the passage of sound through the structure of the building. OWAcoustic suspended ceilings can be used to: to increase the airborne sound reduction R w [db] of - solid soffits - timber beam soffits - simple roof constructions to improve the linear sound reduction D n,c,w [db] between adjacent areas to reduce sound transmissions from the ceiling cavity Sound will always travel from A to B taking the simplest route of the least resistance. Therefore, building acoustics should also be taken into account when designing or providing an acoustic solution for a project. Airborne Sound Reduction This is about preventing as much sound energy escaping from one area and intruding into another. Sound will always try to escape however; its spread will be restricted by the acoustic effectiveness of the perimeter (floors, walls, ceilings, doors and windows, etc). If the airborne sound insulation of the soffit (steel reinforced concrete, timber beams etc.) needs to be improved, it can be achieved with an OWAcoustic suspended ceiling which will function as a resolution barrier below the soffit. Laboratory tests were carried out at the Fraunhofer institute for Building Physics (IBP) in Stuttgart to establish the airborne sound improvement measurements ΔR w [db] between adjacent areas for different OWAcoustic ceilings. The tests were carried out using standard 140 mm thick steel reinforced concrete soffit: Tested variations Testing variations Sound insulation values R w [db] Impact noise values L n,w [db] Sound passages and different soffits source room Solid soffits Timber beam soffits receiving room 140 mm thick standard steel reinforced concrete soffit without a suspended ceiling. In the laboratory, the sound transfer takes place only from above to below as the sound passage over the partition walls are blocked (by using Gypsum - resolution barriers on the walls) 56 db 78 db A 5.0

36 Building acoustics Tested variations Testing variations Sound insulation values R w [db] Impact noise level L n,w [db] Tested variations Testing variations Sound insulation values R w [db] Impact noise level L n,w [db] S 3 exposed grid system 600x600 mm module 15 mm OWAcoustic premium tiles with Constellation design. Depth H = 300 mm using adjustable hanger No. 12/30/2. No mineral wool overlay. 65 db 62 db S 3 exposed grid system in 600x 600 mm module. 33 mm OWAcoustic janus-tiles with Constellation design. Depth H = 300 mm using Fa.Kimmel anti vibration hanger. 80 mm ISOVER TP1 acoustic mineral wool overlay. 70 db db S 3 exposed grid system 600x600mm module 15 mm OWAcoustic premium tiles with Constellation design. Depth H = 300 mm using adjustable hanger No. 12/30/2. 80 mm ISOVER TP1 acoustic mineral wool overlay. 68 db 61 db S 3 exposed grid system in 600x 600 mm module. 33 mm OWAcoustic janus-tiles with Constellation design. Depth H = 300 mm using Fa.Kimmel anti vibration hanger. No mineral wool overlay. 65 db db Sound reduction between adjacent areas In many buildings the partition walls are not installed up to the soffit, but extend only to the suspended ceiling level. This procedure allows a quick and flexible adaptation of the room dimensions by moving the partitions to the new requirement. In this case the sound transfer to the ceiling cavity must be considered very carefully whilst planning the suspended ceiling, to avoid an acoustical short-circuit, that means noises between two rooms are inevitable, the necessary discretion is not sustained. Sketch: Ceiling cavity Office 1 Office 2 The sound reduction between two areas is determined by the whole construction. Walls and ceilings are part of this as well as flanking passages through shafts, ducts, cavities and joints. If the ceiling is to work well in the total system it must possess a good value of sound insulation. A 5.0

37 Area acoustics The sound attenuation value D n,c,w [db] of a suspended ceiling is influenced by different parameters: Sounds from the ceiling cavity Tile thickness, e.g.15 mm tiles against 33 mm Janus tiles Tile surface e.g. Harmony design, D n,c,w = 31 db, against Plain, D n,c,w = 35 db, Suspension systems, e.g. system S 3 exposed grid system and system S 1 concealed tile system Suspension height H = 700 mm (D n,c,w = 31 db) H = 400 mm (D n,c,w = 33 db) Full or partial mineral wool overlays By adding a full-flat mineral wool overlay to the ceiling the sound insulation can be improved by about 2 db per cm. The wool used must be a Fibre Insulation material complying with DIN part 1 and possessing a flow resistance of Ξ 5 kns / m 4. Partial wool overlay in wall areas Additional back painting Sound barriers over walls Sounds from water pipes, ventilation, air-conditioning and services of all types from the ceiling cavity can be greatly reduced by using OWA ceilings. The Sound reduction of OWAcoustic tiles is between 18 to 36 db. according to type used. Attention to installations: The installation of light fittings, light troughs or air conditioning outlets can seriously affect the sound insulation of the suspended ceiling. Care must be taken not to leave any open holes or gaps. Building material class Solution concepts comparison for an S 3 system: No. OWAcoustic premium Design Additional overlays System Suspension H [mm] Sound attenuation D n,c,w [db] (Lab. values) 1 15 mm perforated tile S db 2 15 mm unperforated tile S db 3 15 mm perforated tile 25 mm Rock wool S db 4 15 mm perforated tile second 15 mm tile S db 5 33 mm perforated tile S db 6 15 mm perforated tile 25 mm Rock wool + 15 mm unperforated tile S db A 6.0

38 Sound absorption values* OWAcoustic premium designs Piano Sandila 70 Finetta 62 Cosmos 68 Sound absorption gradient a [ - ] Mid value: a w = 0.80 NRC = 0.80 Bolero Sound absorption gradient a [ - ] Sound absorption gradient a [ - ] 0,60 0,50 Mid value: a w = 0.85 NRC = 0.85 Futura 60 0,20 0,65 0,75 0,50 0,75 0,90 0,95 0,75 0,20 Mid value: a w = 0.15 NRC = 0.15 (Un-needled) Mid value: a w = 0.55 NRC = 0.50 (Needled) Sinfonia 0,35 Mid value: a w = 0.85 NRC = 0.85 Harmony 72 0,50 0,60 0,55 0,40 0,15 0,15 0,15 0,15 0,15 0,15 Frequency [Hz] Frequency [Hz] Frequency [Hz] Frequency [Hz] 0,80 0,80 Frequency [Hz] 0,60 0,75 0,90 0,95 0,90 1,00 Sound absorption gradient a [ - ] Sound absorption gradient a [ - ] Sound absorption gradient a [ - ] 0,50 0,30 0,75 0,55 0,80 0,80 Frequency [Hz] 0,60 0,70 0,90 0,90 0,85 0,85 0,30 0,50 Mid value: a w = 0.70 NRC = 0.70 Sinfonia A 0,65 0,75 0,60 0,85 Mid value: a w = 0.90 NRC = ,75 0,90 0,85 0,95 0,70 0,90 Mid value: a w = 0.15 NRC = 0.15 (Un-needled) Mid value: a w = 0.65 NRC = 0.65 (Needled) Constellation 3 Mid value: a w = 0.70 NRC = 0.70 Plain 9 / Universal 65 Regular perforated 1 0,20 0,45 Frequency [Hz] 0,50 0,60 0,55 0,15 0,15 0,10 0,15 0,15 0,40 0,10 0,35 0,25 0,30 0,25 0,55 0,20 0,50 0,50 0,65 0,15 0,60 0,65 0,70 0,65 0,50 0,10 0,10 0,10 0,75 Frequency [Hz] Frequency [Hz] Frequency [Hz] Frequency [Hz] Frequency [Hz] Sound absorption gradient a [ - ] Sound absorption gradient a [ - ] Sound absorption gradient a [ - ] Sound absorption gradient a [ - ] Sound absorption gradient a [ - ] Sound absorption gradient a [ - ] 0,80 0,85 0,80 1,00 0,95 Mid value: a w = 0.70 NRC = 0.70 Mid value: a w = 0.70 NRC = 0.65 Mid value: a w = 0.55 NRC = 0.55 (Universal) Mid value: a w = 0.15 NRC = 0.15 (Plain) Mid value: a w = 0.70 NRC = 0.75 Molinari 74 Rilled 67 OWAplan Sound absorption gradient a [ - ] 0,35 0,25 0,55 0,20 0,70 0,65 0,65 0,50 0,15 0,10 0,10 0,10 Sound absorption gradient a [ - ] 0,30 0,40 0,50 0,60 0,55 0,45 Sound absorption gradient a [ - ] 0,40 0,40 0,55 0,80 0,80 0,75 Frequency [Hz] Frequency [Hz] Frequency [Hz] Mid value: a w = 0.65 NRC = 0.65 (Cosmos 68/N) Mid value: a w = 0.15 NRC = 0.15 (Cosmos 68/O) Mid value: a w = 0.55 NRC = 0.50 Mid value: a w = 0.60 NRC = 0.65 Others on request * The published sound absorption coefficients were determined with a cavity depth of H=200mm A 6.0

39 OWAcoustic janus Seven Functions one Ceiling OWAcoustic janus is a double layer ceiling tile that was developed for use in areas with special acoustic requirements; in offices and restaurants for example, and also in any areas that require high levels of privacy. For areas in which sound absorption and sound reduction need to be reduced to a common denominator. Seven important functions are fulfilled by these special ceiling tiles: 0,25 0,39 0,64 0,86 0,90 0,84 0,26 0,40 0,65 0,89 0,91 0,81 Optimization of the reverberation time. Where reverberation times are too long, auditory information reverberates in the area. OWAcoustic janus ceiling tiles prevent this sound problem and essentially contribute to the optimization of the room acoustics. Harmony α w = 0.65 / NRC = 0.70 Constellation α w = 0.65 / NRC = 0.70 OWAcoustic janus, 33 mm Sound insulation R [db] Frequency f [Hz] Sound insulation. Another function is the reduction of sounds which come and go through the ceiling. The double layer tile construction reduces the sound transit. This is applicable to steel reinforced concrete and timber beam soffits as well as where simple roof constructions are used. This investigated value is based on window testing. It is a pure material value without consideration of the metal suspension. Sound insulation: R w = 25,4 db (Tested) A 7.0

40 OWAcoustic janus Seven functions one ceiling Sound insulation Reduction of sound spread A Janus ceiling will inhibit the transfer of sound between rooms. Reduction of sound from ceiling cavity The use of the ceiling cavity as a carrier of service installations such as air conditioning and water supply systems creates noise. An OWAcoustic janus ceiling will damp such noises. OWAcoustic janus with System S 3 OWAcoustic janus with System S Design OWAcoustic janus can be supplied in several surface designs and edge details that are compatible with other types of tiles in the OWA range of products. Integration of service elements Lighting and other service or functional elements can be easily incorporated within the Janus tiles with minimum effect on function. Harmony sound attenuation: D n,c,w = 43 bzw. 40 db (Tested) Harmony sound attenuation: D n,c,w = 49 db (Tested) Access to ceiling cavity Many services within the ceiling void require free access for maintenance and repair. No problem with a Janus ceiling from OWA. For further information see brochure No A 7.0

41 Functional Celings Ball impact resistant ceiling System S 3 bws: Top acoustics with a sporty flair The S 3 bws system is made of lightweight mineral wool tiles that can resist the hardest ball throws while providing excellent room acoustics. Marking an end to reverberant noises in nurseries, schools and colleges, the ball impact resistant system allows sports halls to become multifunctional areas that can be used for a wide range of activities from music to speech and badminton to basketball. This system is also ideal for areas such as classrooms, school foyers and nursery playrooms where acoustic ceilings are very important but there is a need to be resistant to impact from high flying objects. OWA has designed OWAconstruct S 3 cliq exposed grid suspension system to meet new stability standards which forms the basis of the impact resistant system S 3 bws. When subjected to the Ball Impact Test as defined in EN Annex D the S 3 bws system achieved Class 1A, the highest rating in the test programme. Compared to some other impact resistant ceiling this system offers a light weight, easy to install, fire resistant ceiling with the added bonus of excellent acoustic performance. Technical Data Material Mineral tile Reaction to fire A2-s1, d0 according to EN Thickness Colour Light reflection Sound reduction* Sound absorption approx. 15 mm white approx. 88 (ISO , ISO , Constallation pat.) approx. 88 (ISO , ISO , Cosmos/N pat.) from 31 db to 49 db (depending on pattern) Moisture resistance up to 95 % a w = 0.70 / NRC = 0.65 (with perforated backing panel, Constellation pattern) a w = 0.75 / NRC = 0.70 (with perforated backing panel and 50 mm mineral wool overlay, Constellation pat.) Fire resistance* on request * depending on system, structural slab and other additional measures A 8.0

42 lation 3 Constelα w = 0.70 / NRC = 0.65 Cosmos 68/N α w = 0.60 / NRC = 0.60 Bolero α w = 0.85 / NRC = 0.85 Sinfonia α w = 0.85 / NRC = Nonius hanger and extension each with 2 safety pins or nails 2 Main tee 3 Cross tee 4 Securing rod 5 Wall spring clip 6 Perimeter trim 7 Metal preforated tile 8 OWAcoustic premium tile System Exposed System Module size in mm S 3 bws 600 x x x x Ball impact test carried out in accordance with DIN : application area: ceiling; also tested in accordance with EN 13964, appendix D achieving class 1A (impact speed 16.5 m/sec ± 0,8). A

43 Hygienic ceilings OWAcoustic AirControl Specially treated ceilings: Fresh air for a better quality of life OWAcoustic AirControl reduces air pollutants by more than 50 percent The more pleasant the atmosphere of a hospital or care home, the more relaxed is the therapy, the higher the feelgood factor, the quicker the recovery. A decisive factor: fresh, clean air in all rooms. No disagreeable odours, no harmful substances. OWA innovation: OWAcoustic AirControl, the ceiling tile which reduces sustainably unpleasant odours of food, cigarette smoke, perspiration, cleaning supplies or solvents, thereunder ammonia, formaldehyde, triethylamine and nicotine, by up to 50 %. The result: more fresh air in hotels, restaurants, canteens, clincs, care homes; noticeably greater well-being for guests, patients and residents. Certified and safe This effect is certified. Practical examination by the Danish institute Eurofins confirmed: In a 14-day testing programme, in which the tiles were continuously exposed to the selected representative substances nicotine, ammonia, formaldehyde and triethylamine, OWAcoustic AirControl lowered the respective concentrations by more than half. OWAcoustic AirControl can therefore double the purity of air quality Pollutant concentration without active ceiling Pollutant concentration with OWAcoustic AirControl ceiling tile 50 0 Nicotine Ammonia Formaldehyde Triethylamine Technical Data Material Mineral tiles Reaction to fire A2-s1,d0 to EN Thickness approx. 15 mm Colour white Light reflection approx. 88 (ISO , ISO ) Sound reduction* from 35 db up to 49 db (dependent on surface pattern) Sound absorption a w = 0.70 / NRC = 0.70 Moisture resistance up to 95 % RH Fire resistance* up to F 90 (DIN 4102) up to REI 90 (EN ) * Dependent on system, soffit and other factors H 1.0

44 Constellation 3 a w = 0,15 / NRC = 0,15 Built-in catalyser OWAcoustic AirControl works on a proven principle. The surface of the mineral wool tile contains a catalyst. This converts more than 50 % of olfactory harmful and odorous substances contained in the area air into hygienically harmless materials. The catalytic process works permanently and doesn t degrade over time. Against other air cleaning products the effect is independent of daylight or other sources of light. OWAcoustic AirControl produces fresh air even over night. Systems Exposed Systems Module sizes in mm S 3/S 3 cliq S x x 625 mineral wool tile surface coating Adsorption of the pollutant molecules in the area air by the surface of the OWAcoustic AirControl ceiling tiles Catalytic reduction of the pollutants to hygienically and completely harmless fi nal products After the chemical reaction the catalyst goes back to its original condition. So it isn t exhausted. More than fresh air: a ceiling system OWAcoustic premium ceiling systems are multi-functional. They can reduce sound and improve area acoustics, are resistant to moisture and increase the levels of fi re protection. OWAcoustic AirControl is available in surface designs Sandila, Plain and Constellation (square formats) and are compatible with OWAconstruct suspension systems S 3, S 3 cliq and S 15. H 1.0

45 Hygienic ceilings OWAcoustic sanitas 02 Where sterile conditions against fungi and bacteria are essential: Specially developed ceiling tiles for use in hygienically sensitive areas: OWAcoustic sanitas 02 reliably protects against bacteria and fungi - also adverse influences from within the ceiling cavity. Use areas: Hospitals (Operating theatres, intensive care units, hospital wards) Laboratories Sterile and hygiene areas Cleaning/washability: The ceiling surface can be vacuum cleaned or wiped with a damp OWA sponge. Even with repeated cleaning processes the sanitized surface remains constant as proved through 500 contact wash cycles in the Gardner-Test. Disinfection: Hygiene certificate in accordance with guide lines of the German society for Hygiene and Microbiology (DGHM) is available. Favourable comments on the behaviour of OWAcoustic sanitas 02 ceiling tiles to microbial contamination. Professor Dr. R. Mutters Institute for medical microbiology and Hospital Hygiene - Philipps University, Marburg Emissionen: OWA mineral wool tiles are low-emission buiding materials. The environmental label Blue Angel confirms that they are made of harmless raw material (certified by RAL ggmbh, Sankt Augustin). For further information see Brochure No. 898 Technical Data Material Mineral tiles Reaction to fire A2-s1,d0 to EN Thickness 15 mm nom. Colour white Light reflection approx. 91 (ISO , ISO ) (surface Plain) Sound reduction* from 35 db up to 49 db (surface Plain) from 31 db up to 49 db (surface Constellation) Sound absorption a w = 0.15 / NRC = 0.15 (Plain) a w = 0.70 / NRC = 0.70 (Constellation) Moisture resistance up to 95 % RH Fire resistance* up to F 120 (DIN 4102) up to REI 120 (EN ) * Dependent on system, soffit and other factors H 2.0

46 Plain 9 sanitas 02 a w = 0.15 / NRC = 0.15 Constellation 3 sanitas 02 a w = 0.70 / NRC = 0.70 Systems Module sizes in mm Exposed Systems S 3 S 3a 600 x x x x 625 H 2.0

47 Hygienic ceilings OWAcoustic pura Where simple and thorough disinfection is required OWAcoustic pura tiles have been designed to take the rigour of being disinfected and provides a high level of resistance to cleaning regimes (subjected to 500 contact wash cycles in the Gardner-Test. Areas of use: Hospitals (Hospital wards, corridors, and storage areas) Schools Fitness studios Nursing homes Nursery schools Cleaning/washability: Tiles can be vacuum cleaned or wiped with a damp OWA cleaning sponge (see Installation Instructions 801). Disinfection: Hygiene certificate in accordance with guide lines of the German society for Hygiene and Microbiology (DGHM) is available. Professor Dr. R. Mutters Institute for medical microbiology and Hospital Hygiene - Philipps University, Marburg Emissionen: OWA mineral wool tiles are low-emission buiding materials. The environmental label Blue Angel confirms that they are made of harmless raw material (certified by RAL ggmbh, Sankt Augustin. For further information see Brochure No. 898 Technical Data Material Mineral tiles Reaction to fire A2-s1,d0 to EN Thickness 15 mm nom. Colour white Light reflection approx. 91 (ISO , ISO ) (surface Plain) Sound reduction* from 35 db up to 49 db (surface Plain) from 31 db up to 49 db (surface Constellation) Sound absorption a w = 0.15 / NRC = 0.15 (Plain) a w = 0.70 / NRC = 0.70 (Constellation) Moisture resistance up to 95 % RH Fire resistance* up to F 120 (DIN 4102) up to REI 120 (EN ) * Dependent on system, soffit and other factors H 3.0

48 Plain 9 pura a w = 0.15 / NRC = 0.15 Constellation 3 pura a w = 0.70 / NRC = 0.70 Systems Exposed Systems Module sizes in mm S 3/S 3 cliq S 3a/S 3a cliq 600 x x x x 1250 H 3.0

49 Hygienic ceilings OWAcoustic Bolero biocide and Sinfonia biocide The perfect all round performance and microbiocidal properties Both the finely textured surface of OWAcoustic premium Bolero biocide and the plain surface of Sinfonia biocide bring the perfect performance criteria of fire, acoustics, hygiene and aesthetics all into one product, providing the key requirements for hospitals, clinics, nursing homes, food production and laboratories. Aesthetics and acoustics (35) The refined, elegant surfaces of Bolero biocide and Sinfonia biocide offer an attractive, minimalistic appearance that conceals a rare combination of sound reduction and an outstanding sound absorption performance of 0.85 a w. Health Benefits Doctors, nursing staff, managers, visitors and of course patients, are all people who are working or visiting hospitals and clinics regularly and therefore subject to the clinical environment. The use of OWAcoustic premium Sinfonia or Bolero biocide ceiling tiles, with their proven effectiveness against bacteria, fungi and yeasts can help achieve the correct environmental conditions for everyone as well as providing an attractive and calming ambience. Emissions The Blue Angel is one of the oldest environmental labels in the world. It is becoming recognized in many countries outside Germany and certifies that the products are environmentally friendly. Reviewed by RAL GmbH Sankt Augustin, OWA was one of the first companies in this sector to receive certification. For more information please see our leaflet no. 898 Technical Data Material Mineral tiles Reaction to fire A2-s1,d0 to EN Thickness 15 mm nom. Colour white Light reflection approx. 84 (Bolero), ca. 87 (Sinfonia) (ISO , ISO ) Sound reduction* 33 db Sound absorption a w = 0.85 / NRC = 0.85 Moisture resistance up to 95 % RH Fire resistance* up to F 90 (DIN 4102) * Dependent on system, soffit and other factors up to REI 90 (DIN EN ) H 4.0

50 Bolero biocide Sinfonia biocide Systems Module sizes in mm Exposed Systems S 3 S x x x x 625 H 4.0

51 Hygienic ceilings OWAlux Where very smooth surfaces are required: OWAlux ceiling tiles achieve the highest standards of cleanliness and hygiene. The smooth aluminium foil surface makes it difficult to harbour dirt, mould or bacteria. The tiles are durable and can be easily cleaned and/or disinfected. Areas of use: Hospitals Food handling / Meat preparation Laboratories Sterile and Hygiene areas Moisture areas Cleaning: Cleaning of the ceilings differs according to the installation method. All OWAlux surfaces can be vacuum cleaned or wiped with a damp OWA-sponge. High pressure cleaning: The OWAlux surfaces 64/4 and 64/8 can be cleaned with a high pressure washer. The maximum water temperature should not exceed 38 C, with a maximum nozzle pressure of 40 bar. The water jet spray should be directed at an angle of 30 at a minimum distance of 40 cm from the surface. For this type of cleaning it is necessary that the tiles be sealed into the suspension grid with silicone sealant. Installlation in accordance to system S 3. With contamination, as well as being open to the effects of aggressive mediums (soaps, acidity, fats etc.), it is vital to achieve optimum surface cleanliness. This can be achieved with OWAlux surfaces. Temperature resistance: Up to 50 C in the area of the ceiling tile. Disinfection: The Dr. Weßling Laboratories in Altenberge have confirmed the effectiveness of surface disinfection. For further information see Brochure No. 898 Technical Data Material Mineral tiles Reaction to fire A2-s1,d0 and A2-s3,d0 to EN Thickness 15 mm nom. Colour grey white, silver, white Light reflection on request Sound reduction* from 35 db up to 49 db Sound absorption a w = 0.15 / NRC = 0.15 Moisture resistance up to 95 % RH Fire resistance* up to F 120 (DIN 4102) up to REI 120 (EN ) * Dependent on system, soffit and other factors H 5.0

52 OWAlux grey white 64/2 OWAlux silver 64/4 OWAlux white, A2-s3,d0 to EN /8 Systems Module sizes in mm Exposed Systems S 3 S 15* 600 x x x x 625 *conditionally usable H 5.0

53 Hygienic ceilings OWAcoustic clean Where dust particles are not permitted In clean areas there are special requirements for air purity. With OWAcoustic clean ceiling tiles we comply with the maximum limits of US-Standards in five out of the six classes, from class 10 to 1000,000. This qualifies and confirms the suitability for use in many types of clean rooms. OWAcoustic clean mineral wool ceiling tiles are faced with high-quality aluminium foils. They have very smooth and easy to clean surfaces which do not harbour air-borne dust particles. Universal 65/1 tiles also fulfil these functions and additionally offer good sound absorption through simple surface perforations. Areas of use: Precision mechanical engineering industry optical industry electronic high- tech manufacturing areas Cleaning: All OWAcoustic clean surfaces can be vacuumed or wiped with an OWA sponge (see Installation Instructions 801). Technical Data Material Mineral tiles Reaction to fire A2-s1,d0 to EN respectively A2-s3,d0 at 64/18 Thickness 15 mm nom. Colour white, silver, grey white Light reflection on request Sound reduction* from 35 db up to 49 db (surface 64/12, 64/14, 64/18) from 31 db up to 49 db (surface Universal 65/1) Sound absorption* a w = 0.15 / NRC = 0.15 (64/12, 64/14, 64/18) a w = 0.55 / NRC = 0.55 (surface Universal) see next page for patterns Moisture resistance up to 95 % RH Fire resistance* up to F 120 (DIN 4102) up to REI 120 (DIN EN ) * Dependent on system, soffit and other factors H 6.0

54 OWAcoustic clean grey white 64/12 a w = 0.15 / NRC = 0.15 OWAcoustic clean silver 64/14 a w = 0.15 / NRC = 0.15 OWAcoustic clean white 64/18 A2-s3,d0 to EN a w = 0.15 / NRC = 0.15 OWAcoustic clean Universal 65/1 a w = 0.50 / NRC = 0.55 Testing passed: Clean room approved To prove the clean room efficiency, the Fraunhofer IPA in Stuttgart carried out prolonged testing in accordance with the clean room classification class 4 (to ISO ). Class 10 corresponds to the US-Federal Standard 209E. D, which allows a maximum of 10 particles of the reference size 0.5 µm in an air volume of one cubic foot. All the OWAcoustic clean ceilings qualified to Class 10. This result was also attained by an OWAtecta Metal ceiling (system S 31) un-perforated surface (L0). System Module sizes in mm Exposed System S x x 625 For more detailed information see OWA Brochure No OWAcoustic -clean tiles Material class Edge details Sealing method* grey white 64/12 silver 64/14 white 64/18 Universal 65/1 A2-s1,d0 EN A2-s3,d0 EN A2-s1,d0 EN square edges painted square edges painted square edges painted 9 mm closed cell polyurethane compression foam sealing strip, one side self adhesive. Injected acrylic sealant. 9 mm closed cell polyurethane compression foam sealing strip, one side self adhesive. Injected acrylic sealant. 9 mm closed cell polyurethane compression foam sealing strip, one side self adhesive. Injected acrylic sealant. * The method of sealiing should be adapted to the requirements of the area. The injection of silicone or acrylic sealant is not usually necessary. Sealing example*: Hold down clips 2 Main or cross T-sections 3 Foam compression strip* 4 Silicone seal (or equivalent)* 5 Surface design un-perforated 1 H 6.0

55 Moisture resisting ceilings OWAcoustic premium, MAVROC, AquaCosmos Ceiling tiles for high humidity areas In such areas as swimming pools and showers, suspended ceilings are exposed to extreme moisture conditions. Moisture is measured as Relative Humidity (RH) and is always dependent on the area temperature. In these humid areas it is important to install the correct OWAcoustic tiles. MAVROC and AquaCosmos tiles have been specifically developed for high moisture conditions. Further information on moisture resisting ceilings is available in the OWA Installation Guide 801. Suspension Construction It is recommended that in areas where the ceiling is exposed to constant extreme humidity conditions a corrosion resistant suspension grid such as OWAconstruct system S 3e is used. OWAcoustic premium OWAcoustic -premium tiles can, according to dimensions and surface pattern, be used in short term humidity conditions up to 95 % RH. Care should be taken to ensure that there is natural or mechanical ventilation to transport moisture to the outside. For technical data on OWAcoustic premium tiles refer to pattern details. Systems OWAcoustic MAVROC OWAcoustic MAVROC is specifically for moist and outside areas. The tiles remain stable over long term exposure to moisture conditions with humidity of up to 95 % RH. Even under extreme conditions OWA ceilings remain stable! Technical Data Exposed Systems S 3*/S 3e Module sizes in mm 600 x x 625 * Limitations apply Material Mineral tiles Reaction to fire A2-s1,d0 to EN Thickness 15 mm nom. Colour white Light reflection approx (dependent on surface) (ISO , ISO ) Sound insulation* from 31 db to 49 db (dependent on pattern) Sound absorption a w = 0.70 / NRC = 0.70 (Constellation) a w = 0.70 / NRC = 0.65 (Harmony) Moisture resistance stable to 95 % RH, permanent Fire resistance* up to F 120 (DIN 4102) up to REI 120 (EN ) * Dependent on system, soffit and other additional factors F 1.0

56 Moisture resisting ceilings OWAcoustic premium, MAVROC, AquaCosmos Ceiling tiles for high humidity areas Systems OWAcoustic premium AquaCosmos Permanent stability under extreme conditions. AquaCosmos tiles have a high resistance to the effects of extreme constant moisture conditions. They are durable and stable in relative humidity of 100 % RH. For further technical details refer to pattern pages. Technical Data Exposed Systems S 3*/S 3e Module sizes in mm 600 x x 625 * Limitations apply Material Mineral tiles Reaction to fire A2-s1,d0 to EN Thickness 15 mm nom. Colour white Light reflection approx. 84 (ISO , ISO ) Sound reduction* from 31 db to 49 db (Needled) from 35 db to 49 db (Un-needled) Sound absorption a w = 0.15 / NRC = 0.15 (Un-needled) a w = 0.60 / NRC = 0.65 (Needled) Moisture resistance to 100 % RH Fire resistance* up to F 120 (DIN 4102) * Dependent on system, soffit and other additional factors up to REI 120 (EN ) F 1.0

57 CBS, Den Haag Mulia Tower Building, Jakarta Rank Xerox, Neuss

58 Rivium Crystal Building, Capelle a. d. Yssel Tamara Bank Indonesia Central Plaza, Hong Kong American Express, Frankfurt

59 This publication provides detailed information on OWA Ceiling Systems. The illustrations, technical details, functions and other information related to the individual product lines, systems and accessories contained in the catalogue are based on current knowledge. We therefore recommend that for specific advice you consult our expert technical staff who are available to deal with all enquiries. OWAconsult Telephone: Fax: Web: Illustrations, especially those on OWAcoustic ceiling surface patterns, may vary from the actual tile due to printing variations/ limitations. We reserve the right to make technical changes to all products as stated in our general Terms and Conditions of Sale. This catalogue is valid until the issue of a new edition. Errors and omissions excepted.

60 France OWA France SAS Parc du Colombier 18, rue Jules Saulnier Saint-Denis Cedex Tel Fax owainfo@owafrance.fr Great Britain OWA (UK) Ltd. Unit 10 Perth Trading Estate Perth Avenue/Slough SL1 4XX Tel Fax sales@owa-ceilings.co.uk Italy OWA Faserplattenwerk GmbH Sede Secondaria per l Italia Via del Commercio Trento Tel Fax erika.ureta-schleien@owa.de Netherlands/Belgium OWA Benelux BV Archangelkade BE Amsterdam Tel Fax info@owa.nl/info@owa.be Poland OWA Polska Sp. z o.o. Ul. Prusimska Poznań Tel Fax info@owa.com.pl South Africa OWA Ceiling Systems Southern Africa (Pty) Ltd. 19 Fourth Street Wynberg Tel Fax bruce@owa.co.za Russia OWA Representative Andrey Pochitalin Balakirevskiy pereulok 19, bld Moskau Tel Fax andrey.pochitalin@owa.ru China OWA Metallic New Building Materials (Shanghai) Co., Ltd. No. 488, Rongxing Road, Rongbei Zone, Songjiang Industry Zone, Shanghai Tel info@owachina.net Middle and South America OWA Miami S.W. 56 St. Suite 208 Miami, Florida Tel Fax sales@owamiami.com Brazil OWA Brasil Prods. Acust. Ind. Imp. Exp. Ltda. Av. Piraporinha, 1027 Diadema São Paulo Tel Fax luciano@owa.com.br Switzerland OWA Representative Reto Murer Stöckmattstraße Leuggern Tel Fax owa.ch@bluewin.ch Austria OWA Representative Herwig Hackl Altweitra Weitra Tel Fax herwig.hackl@owa.at Czech Republic and Slovakia OWA Representative Radomil Blazek Mobile radomil.blazek@owa.de Roman Pozdech VL. Clementisa Trnava Slowakei Mobile roman.pozdech@owa.de Hungary OWA Representative Tamás Grauszmann Széchenyi u Szödliget Tel tamas.grauszmann@owa.de Australia OWA Representative Peter Robson PO Box 318 Miranda NSW 2228 Tel Fax peter.robson@owa-ceilings.com India OWA Representative D N Jha No- 1A-1103, N G Suncity, Phase-2 Thakur Village Kandivali-East Mumbai Tel dn.jha@owa-ceilings.com Turkey OWA Representative Coskun Savaser Gümüsyolu Cad. No: 5 Mesadet Is Merkezi Daire: , Altunizade Istanbul Mobile Fax coskun.savaser@owa.de Hakan Engün Export Manager OWAtecta Mobile Fax hakan.engun@owa-ceilings.com Odenwald Faserplattenwerk GmbH Dr.-F.-A.-Freundt-Straße Amorbach Tel Fax info@owa.de Publication no. 900 E