the full range of sound absorption THERMATEX Acoustic Range Advantages of the Acoustic Range

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1 Acoustic Range

2 THERMATEX Acoustic Range Advantages of the Acoustic Range White, smooth surface finish with a variety of acoustic properties Flexible adaption of the room (also retrospectively) to meet current acoustic requirements and changes of function Variable adjustment of sound absorption and sound attenuation to the rooms conditions and to ideally meet the requirements Ceilings with areas of high absorption reverberation times according to guidelines and standards and zones of amplified speech in a uniform surface finish Fire protection requirements and hygiene requirements combined with the acoustic performance of a ceiling system AMF THERMATEX ceiling tiles are only slightly air permeable due to their high density. Thus, only a small amount of dust particles can settle on the ceilings surface the ceiling remains clean. 2 THERMATEX Acoustic Range the full range of sound absorption The AMF THERMATEX Acoustic Range is a new concept for modular ceiling tiles. The fleece-faced tiles guarantee the full range of sound absorption with the same visual appearance and surface properties. From reflective, through absorbing to extremely absorbing performance, the full range of sound absorption is covered. Exceptional sound attenuation can also be achieved with up to 44dB for example, with THERMATEX Silence, a very high performance value for a suspended ceiling with an open void. The AMF THERMATEX Acoustic Range offers the right solution for almost every application and can fulfil the highest requirements in terms of sound reduction and room acoustics. The strength of the range lies not only in using a single tile type per ceiling, but the possibility to also combine different products with different acoustic performance (e.g. THERMATEX Alpha and THERMATEX Acoustic RL).

3 Extremely absorbing acoustics, extremely elegant design! The THERMATEX Acoustic Range from Knauf AMF offers a comprehensive product program of modular ceilings for the base acoustic setting of rooms dependent on their function (e.g. speech, music) and fine-tuning for targeted sound control. The products are thereby suitable for many applications. Office buildings Individual offices Open plan offices Meeting rooms Cafeterias Storage rooms Corridors Public buildings Assembly halls Conference rooms Service counter halls Dining rooms Foyers Technical rooms Corridors Schools Class rooms Lecture theatres Staff rooms Auditoriums Canteens Workshops Changing rooms Corridors Recreation rooms Special Applications Rooms with special acoustic requirements, such as cinemas, can be acoustically fine-tuned using the extremely absorbing AMF THERMATEX Alpha black tiles installed in combination with extra matt supporting profiles. Stringent requirements in terms of sound reduction and room acoustics can thereby be fulfilled. Even bowling alleys, with the target of sound reduction, can be acoustically optimised. 3

4 Material description and product types THERMATEX Acoustic Range proven quality All tiles in the AMF THERMATEX Acoustic Range are made from a mineral baseboard manufactured by the wet-felt process. Invisible perforations give the acoustic performance required and the board is then laminated with an acoustic fleece, giving an elegant, smooth, white appearance. The production of extremely absorbing ceilings using hard mineral boards and the entire spectrum of sound absorption (αw =.15 to 1.) available in one, uniform surface finish is revolutionary. The tiles are produced using new generation bio-soluble mineral wool, clay, starch and perlite ensuring the natural character of the products. The RAL-quality mark confirms the surveillance and control of the mineral wool. 4

5 Our product range optimised for you We have optimised the acoustic values of our THERMATEX Acoustic Range and can therefore fulfil higher room acoustic requirements. The different ceiling tile types in the Acoustic Range all have a uniform fleece-coated surface and cover the complete range of absorption from hardly absorbing to extremely absorbing. Tile types Edge type Thickness (mm) αw value EN ISO NRC ASTM C423 Dn,c,w = (EN 214-9) Dn,f,w = (EN 1848) SK VT 15/24 VT-S 15/24 VT-S 15F AW/SK GN/SK AW/GN SF Alpha 19,95,9 28 db on request Alpha ONE 24 1, 1, 29 db on request Alpha HD 19,9,85 3 db Silence 43,85 (H),9 44 db Thermofon 15,8 (H),85 28 db SF Acoustic 24,65 (H),7 38 db Acoustic 19,65 (H),7 38 db db Acoustic 24 mm 24,65 (H),7 41 db db Acoustic 3 mm 3,65 (H),7 43 db Acoustic RL 19,15 (L),15 38 db Alpha black 19 1,,9 28 db Alpha creme, silver 19,9,95 28 db 5

6 Sound absorption THERMATEX Acoustic Range optimal sound absorption Sound absorption is responsible for the audibility in a room. How reverberant a room seems or how loud a source of sound appears is dependent on the sound absorption. How do you define sound absorption? What we understand by this is reducing the sound energy in a room through sound waves losing energy on component surfaces. The energy of the sound waves is absorbed or reflected by the enclosing surfaces, as well as objects and people within the room. The correct sound absorption ensures that the sound in a room is perceived as louder or quieter. The ability of a material to swallow sound waves depends on the materials properties. Porous, open-cell or perforated materials normally absorb sound very well. Good audibility in a room describes the conditions that enable the best possible transmission of a sound source to the listener. Acoustic requirements according to room use for reverberation time and frequency response as per DIN Determination of the room acoustic requirements as per DIN In the first step, the reverberation time (Tsoll) is determined according to use and volume. 2 In the second step, the frequency dependent tolerance range for speech and music is determined according to DIN ,6 2,4 +4 % 2,2 Intended range (music) 2, Reverberation time Tsoll [s] +2 % 1,8 1,6 T / Tsoll 1,4 1,2-2 % 1, Intended range (speech),8-4 %,6,4,2 1 1 music 6 speech 1. Volume V / m3 lesson 1. sport 1 1. sport For large rooms (halls, open-plan offices) the VDI 376 guideline applies.

7 Optimised sound control Absorbers, diffusers and reflectors Sound attenuation High sound absorption will dampen the sounds in a room, both unwanted sounds (e.g. noise) as well as useful sounds (e.g. speech). The reverberation time as a sole measurement criterion for the function of a room does not distinguish any difference between the two. By utilising sound absorbing and sound reflecting zones, you can select which sound sources should be emphasised and which should be reduced. This is why the AMF THERMATEX Acoustic Range has been developed. The combination of different absorbers (such as acoustic ceilings, wall panels and acoustic rafts) facilitates the acoustic adjustment of a room. Care should be taken to ensure that the sound absorption is evenly distributed across the relevant frequency ranges. Sound reflecting fixtures and fittings have a positive effect on sound distribution within a room. Individual elements such as sound absorbing ceiling rafts and wall panels are sophisticated, architectural solutions. Sound is transmitted between rooms not only through partition walls, but also through a variety of components and paths by flanking transmission. The design challenge is the targeted control of sound (e.g. from speaker to listener) through the adjustment of absorbing and reflecting surfaces and elements. At the same time, the reverberation time is adapted for the use of the room depending on frequency within the range of the tolerances. Optimising audibility The Knauf AMF Acoustic Range offers a wide spectrum of different absorbers. The absorption properties of the elements ensure the required reverberation time is met (with a uniform surface finish). Optimising sound reflection Transmission of sound between speaker and listener Useful sound Unwanted sound Absorbent panelling Reflective ceiling THERMATEX db Acoustic in 3 mm thickness offers such excellent sound attenuation with 43 db that the usual office standard (37dB on site) is achieved. No further cavity barriers above the partition or wool overlays are required. The complete ceiling void therefore remains easily accessible. Installation and maintenance is considerably simplified. Sound attenuation through acoustic ceilings Useful sound Unwanted sound, multiple reflections (flutter echo) between reflective, parallel walls Absorbent panelling Transmission of sound through the ceiling Transmission of sound between rooms Increased sound protection from the THERMATEX Acoustic Range reflective ceiling 7

8 Product range THERMATEX Alpha THERMATEX Alpha is an extremely absorbing ceiling tile produced by the AMF wet-felt process. It combines the highest sound absorption sound absorption class A with fire protection. THERMATEX Alpha ONE THERMATEX Alpha ONE is a ceiling tile produced by the wet-felt process which achieves the highest sound absorption values. THERMATEX Alpha HD THERMATEX Alpha HD offers the benefits of an extremely absorbing ceiling tile combined with a concealed grid construction. C Edges: SK, VT-S 15/24, VT-S 15F, VT 15/24 on request 6 x 6 mm, 6 x 12 mm, 625 x 625 mm, other sizes on request Thickness: 19 mm (c. 3. kg/m²) α w =.95 as per EN ISO NRC =.9 as per ASTM C 423 extremely absorbing D n,f,w = 28 db as per EN ISO 1848 C Edges: SK, VT-S 15/24, VT-S 15F, VT 15/24 on request 6 x 6 mm, 625 x 625 mm other sizes on request Thickness: 24 mm (c. 4. kg/m²) α w = 1. as per EN ISO NRC = 1. as per ASTM C 423 extremely absorbing D n,f,w = 29 db as per EN ISO 1848 Edges: F I A AW/GN, AW/SK, GN/SK 3 x 18 mm, 6 x 6 mm, 625 x 625 mm, other sizes on request Thickness: 19 mm (c. 4.7 kg/m²) α w =.9 as per EN ISO NRC =.85 as per ASTM C 423 extremely absorbing D n,f,w = 3 db as per EN ISO THERMATEX Silence THERMATEX Silence is a fleece coated ceiling tile made from two mineral boards bonded together. The special construction provides excellent sound absorption as well as high sound attenuation. THERMATEX Thermofon THERMATEX Thermofon displays excellent sound absorption values and is therefore suitable for damping rooms. THERMATEX Acoustic RL THERMATEX Acoustic RL completes the product range with special sound reflecting properties. C Edges: SK, VT-S 15/24 6 x 6 mm, 625 x 625 mm, other sizes on request Thickness: 43 mm (c. 1.8 kg/m²) α w =.85 (H) as per EN ISO NRC =.9 as per ASTM C 423 extremely absorbing D n,f,w = 44 db as per EN ISO 1848 Edges: C SK, VT-S 15/24, VT-S 15F 6 x 6 mm, 6 x 12 mm, 625 x 625 mm, Thickness: 15 mm (c. 2.4 kg/m²) α w =.8 (H) as per EN ISO NRC =.85 as per ASTM C 423 extremely absorbing D n,f,w = 28 db as per EN ISO 1848 C Edges: SK, VT 15/24 6 x 6 mm, 625 x 625 mm, other sizes on request Thickness: 19 mm (c. 5.8 kg/m²) α w =.15 (L) as per EN ISO NRC =.15 as per ASTM C 423 hardly absorbing D n,f,w = 38 db as per EN ISO

9 THERMATEX Acoustic THERMATEX Acoustic is a universal product due to its high sound absorption and good sound attenuation. THERMATEX db Acoustic 24 mm THERMATEX db Acoustic 24 mm is a ceiling for high sound attenuation requirements. At the same time, the invisible perforations result in a high sound absorption value. THERMATEX db Acoustic 3 mm THERMATEX db Acoustic 3 mm with its extra 6mm tile thickness is especially optimised for sound attenuation. C F I A Edges: SK, VT 15/24, VT-S 15/24, VT-S 15F, AW/SK, GN/SK, AW/GN 6 x 6 mm, 6 x 12 mm, 625 x 625 mm, 3 x mm, other sizes on request Thickness: 19 mm (c. 4.6 kg/m²) α w =.65 (H) as per EN ISO NRC =.7 as per ASTM C 423 highly absorbing D n,f,w = 38 db (4 db for plank sizes) as per EN ISO C F I Edges: SK, VT 15/24, VT-S 15/24, VT-S 15F, AW/SK, GN/SK 6 x 6 mm, 625 x 625 mm, 3 x 18 mm, other sizes on request Thickness: 24 mm (c. 8.4 kg/m²) α w =.65 (H) as per EN ISO NRC =.7 as per ASTM C 423 highly absorbing D n,c,w = 41 db (43 db for plank sizes) as per EN ISO Edges: C F I SK, VT-S 15/24, VT-S 15F 6 x 6 mm, 625 x 625 mm, 3 x 18 mm, other sizes on request Thickness: 3 mm (c. 1.5 kg/m²) α w =.65 (H) as per EN ISO NRC =.7 as per ASTM C 423 highly absorbing D n,c,w = 43 db as per EN ISO THERMATEX SF Acoustic With the acoustic ceiling THERMATEX SF Acoustic the grid is concealed by a special grooved edge. In addition, the ceiling scores well with an effortlessly easy installation as well as good acoustic properties. THERMATEX Alpha black THERMATEX Alpha schwarz was developed especially for cinema theatres or night clubs, amongst other applications. With its black fleece facing, it not only creates an elegant look but also fulfils the highest acoustic requirements. THERMATEX Alpha creme, silver You want more colour on the ceiling? In addition to white or black acoustic ceilings, we offer fleece faced ceilings in creme and silver that at the same time offer the highest absorption. Kante: C SF* 6 x 6 mm, 625 x 625 mm, other sizes on request Thickness: 24 mm (c. 8.4 kg/m²) α w =.65 (H) as per EN ISO NRC =.7 as per ASTM C 423 highly absorbing D n,f,w = 38 db as per EN ISO 1848 Kante: C SK 6 x 6 mm, 625 x 625 mm, other sizes on request Thickness: 19 mm (c. 3. kg/m²) α w = 1. (H) as per EN ISO NRC =.9 as per ASTM C 423 extremely absorbing D n,f,w = 28 db as per EN ISO 1848 Kante: C SK 6 x 6 mm, 625 x 625 mm, other sizes on request Thickness: 19 mm (ca. 3, kg/m²) α w =,9 as per DIN EN ISO NRC =,95 as per ASTM C 423 extremely absorbing D n,f,w = 28 db as per DIN EN ISO ,8 1, 1,.8,9,55,

10 System solutions System solutions THERMATEX offers different solutions for ceiling constructions: exposed, free spanning or concealed systems. The system solutions are characterised by quick installation and versatility. The four systems can be used with a wide variety of THERMATEX Acoustic Range ceiling tiles. System C Exposed system System F Free spanning construction SK (short edge) SK VT-S 15/24 GN (long edge) VT 15/24 VT-S15F AW (long edge) Exposed grid construction Square (SK) or recessed (VT) edges Quick and easy installation Easily accessible for maintenance Numerous international approvals and certificates Free spanning system, spanning up to 1.8 m Ideal solution for corridors Expansive and homogenous appearance due to low number of joints Quick and efficient installation Freely accessible ceiling void, dependent on construction type The following THERMATEX products are available: Alpha, Alpha ONE, Alpha black, Alpha creme, Alpha silver, Silence, Thermofon, Acoustic RL, Acoustic, db Acoustic 24 mm, db Acoustic 3 mm The following THERMATEX products are available: Alpha HD, Acoustic, db Acoustic 24 mm System I Parallel bandraster construction System A Concealed construction SK (short edge) AW GN (long edge) GN AW (long edge) Bold, parallel ceiling construction Exposed main profiles Cross profiles exposed or concealed Lightweight partitions can be connected to bandraster profiles (flexible room arrangement) Freely accessible ceiling void, dependent on construction type The following THERMATEX products are available: Alpha HD, Acoustic, db Acoustic 24 mm Concealed construction profiles Smooth, monolithic appearance Different construction variants (demountable / non-accessible) Ceiling void optionally accessible or non-accessible The following THERMATEX products are available: Alpha HD, Acoustic 1

11 THERMATEX SF Acoustic built-in safety This performance ceiling with SF shadow edge requires a minimal installation height as the tiles are installed purely from below. The removal and re-installation of the individual tiles for maintenance is achieved simply by a small shift of the tile along the grid. Grid construction for THERMATEX SF Acoustic SF edge (long side) SF edge (short side) Step by step installation/demounting Step The tile should be inserted into the module with the double groove first. Care must be taken to ensure that the horizontal leg of the T-grid sits in the lower groove. Otherwise, the following steps will not be able to be carried out. Step Subsequently, the opposite side is pushed up against the grid system. This should be done without too much force, as the tile must only be raised to the corresponding grid level. Step Finally, the tile is moved in the direction of the side that was pushed up in the previous step. Please ensure that the tile remains pushed up so that the groove and the grid system can be pushed into each other. At the same time, the opposite side slides to the lower level and lies flush in the system. Cross-section wall connection and joint width profile T24/ perimeter spring 2 2 shadow gap = 7, mm 11

12 Special products Ceiling rafts, wall absorbers and baffles elegant and functional Different absorption surfaces create different effects in room acoustics. That is why Knauf AMF offers other exciting acoustic elements in addition to classic acoustic ceilings. Ceiling rafts, wall absorbers and baffles present creative solutions and offer effective acoustics for rooms with the highest aesthetic requirements THERMATEX Sonic arc 2 Convex and concave elements Choice of colours Adjustable suspension Quick and easy installation THERMATEX Sonic modern THERMATEX Sonic modern is a mineral ceiling raft installed with an aluminium frame. The rafts are delivered ready to install in one piece and can be installed quickly and easily using the hangers provided. Quick and precise installation Adjustable suspension Individual surface designs Various frame colours 12 THERMATEX Sonic element THERMATEX Sonic element offers you a mineral acoustic ceiling raft without a frame. With little material the perfect symbiosis between outstanding acoustics and sophisticated elegance is achieved. Particularly elegant design possibilities are achievable by varying layouts of concave and convex elements with THERMATEX Sonic arc Easy installation Round and rectangular elements Design Adjustable suspension 4 THERMATEX Sonic sky The flexible, flat ceiling raft system THERMATEX Sonic sky offers architects and designers a high degree of design freedom through its wide range of colours and forms. Flexible sizes Special forms (e.g. trapezoid, triangle, prisms etc.) Variable suspension system (e.g. inclined under sloping roof) Large choice of surfaces Lights and services can be integrated

13 Knauf AMF baffles AMF Line wall absorbers Not enough sound absorption in a room? The Knauf AMF baffle is your acoustic solution. The baffle system extends the active acoustic surfaces in the room beyond the dimensions of the ceiling and walls. This architectural design element offers various application possibilities to dampen noise in rooms and improve room acoustics. The enclosing frame in combination with different AMF surface decors, combines function with aesthetic. Optional, discreet stainless steel cable hangers create a weightless and elegant impression. AMF Line wall absorbers are available in three types: Easy installation Round and rectangular elements Design Adjustable suspension 12 x 3 mm, 12 x 6 mm, Other sizes on request 6kg/pc. (12 x 6 mm) Wall absorber AMF Line Modern Consists of a mineral tile with an aluminium frame. The fleece-coated surface is white as standard, but can be ordered in any colour or printed with custom graphics. Wall absorber AMF Line Style An individually printable fabric covering with an elegant aluminium frame. The fabric covering can be easily removed and exchanged for a new design. Wall absorber AMF Line Classic The modular wall absorber system for large areas. The sophisticated profile system enables the wall absorber to be produced in the required length. Installation is quick and easy thanks to the installation frame, included in the delivery. 13

14 Project case study 1 Knauf AMF Acoustic solutions Secondary school case study As part of the refurbishment of a secondary school, one of the major issues was the room acoustics, with overlong reverberation times in various classrooms. Following an initial on-site meeting, a reverberation time calculation was carried out using the recorded data. This resulted in an average calculated value of approximately 1.8 seconds. In order to confirm the calculated value, measurements were conducted within the building, as can be seen in figure 2, and the reverberation time Tmid = 1.65 seconds confirmed. To ensure measuring accuracy, both microphone and loudspeaker positions were repeatedly varied. Using the room s volume and DIN 1841, the required reverberation time for the reference room was calculated as.6 seconds with the corresponding tolerance band. The proposed ceiling layout (see figure 1 ) was installed and supplemented with wall panels to provide an additional area of absorption. For this variation, also recommended by DIN 1841, our reverberation time calculation service gave an average reverberation time of.6 seconds. The local council, as investors, also carried out a reverberation time calculation to confirm the calculated value. The loudspeaker and microphone positions were also varied for the measurement. The results of the measurements are shown in figure 2 and gave an average of Tm =.6 seconds. 14

15 2 The original classrooms before the refurbishment were constructed with a painted concrete ceiling and cavity brick walls, windows with curtains, linoleum flooring and the usual classroom equipment (blackboard, hard desks and chairs). During the refurbishment the ceiling was fitted with AMF THERMATEX Alpha and with a reflective segment of AMF THERMATEX Acoustic RL above the teacher for vocal support. The major benefit of this combination is that optically there is no difference between the extremely absorbing (THERMATEX Alpha) and the reflecting (THERMATEX Acoustic RL) areas. Both tile types, along with all the other products in the THERMATEX Acoustic Range offer a plain, homogenous, smooth white surface finish. AMF wall absorbers were installed to reduce disturbing sound reflections from the back wall. These consist of robust, perforated metal cassettes with acoustic inserts and are in daily use as a magnetic notice board. Ceiling tile layout 2 Prism-shaped classroom: measured reverberation time values before and after the refurbishment, unoccupied state 3,5 3, Reverberation time Tsoll [s] 1 2,5 2, 1,5 1,, Extremely absorbing (AMF THERMATEX Alpha) Measured RT values before refurbishment Reflecting (AMF THERMATEX Acoustic RL) Measured RT values after refurbishment Black board Upper limit of tolerance range Wall absorber Lower limit of tolerance range

16 Knauf AMF Ceiling system location Peterlee, Great Britain Knauf AMF Ceiling system location Dreux, France Knauf AMF Slitting factory Antwerpen, Belgium Knauf AMF Ceiling system location Viersen, Germany Knauf AMF Ceiling system location Headquarter Grafenau, Germany Knauf AMF Ceiling system location Ferndorf, Austria Knauf AMF GmbH & Co. KG Elsenthal 15, Grafenau Germany Tel.: Fax: HERADESIGN Knauf AMF Deckensysteme GmbH 972 Ferndorf 29 Austria Tel.: With the strong brands AMF THERMATEX, AMF VENTATEC, DONN and HERADESIGN, the ceiling specialist Knauf AMF offer a fully developed product range and exceptional sales and advisory services to architects, specialist contractors, developers and distributors throughout the world. With us, you are always a ceiling solution ahead! No responsibility or liability is accepted for the accuracy of the information provided. Subject to change without prior notice. 11/214 Knauf AMF GmbH & Co. KG Metallstraße 1, Viersen Germany Tel.: info-de@knaufamf.eu Knauf AMF Plafonds et Systèmes 9, rue des Livraindières, 281 Dreux France Tel.: info@knaufamf.fr Knauf AMF Ceilings Ltd. 1 Swan Road, Peterlee, Co. Durham Great Britain Tel.: sales@amfceilings.co.uk