VALIDATION REPORT No

Transcription

1 Istituto Giordano S.p.A. Via Rossini, Bellaria-Igea Marina (RN) - Italia Tel Fax istitutogiordano@giordano.it - PEC: ist-giordano@legalmail.it Cod. Fisc./Part. IVA: Cap. Soc i.v. R.E.A. c/o C.C.I.A.A. (RN) Registro Imprese di Rimini n VALIDATION REPORT No (This document is based on test report No issued by Istituto Giordano in date 08/0/008) Place and date of issue: Bellaria-Igea Marina - Italy, 7/0/06 Customer: TEKCELL S.p.A. - Via del Consorzio, FALCONARA MARITTIMA (AN)- Italy Date test requested: 04/09/008 Order number and date: 6889, 6/0/06 Date test effected: /09/008 Purpose of test: comparative measurement of the sound insulation of a plasterboard partition in accordance with the requirements of Annex C of standard UNI EN ISO 40-4:000 Test site: Farm building - Via Montefiorino, 7 - Località Vergiano Rimini (RN)- Italy Purpose of measurement The measurements aim to assess the effects on sound insulation obtained by fitting gypsum fibreboard cladding to a plasterboard partition wall. Description of specimen Starting from the side exposed to noise, the plasterboard structure is formed by: layers of plasterboard, thickness,5 mm per layer; framework created with steel channels, depth 50 mm, filled with mineral wool blanket, thickness 50 mm and density 50 kg/m³; layer of plasterboard, thickness,5 mm. Comp. AV Revis. RB This validation report consists of 9 sheets. This document extends the validity of all numerical and descriptive data contained in the reference test report. CLAUSES: This document relates only to the sample or material tested and shall not be reproduced except in full without Istituto Giordano s written approval. Sheet of 9

2 (Validation report No dated 7/0/06) sheet of 9 follows The cladding is subsequently attached directly to the framework using self tapping screws and consists of GIPS FASER H gypsum fibreboard, thickness mm, supplied by Global Building S.r.l., on the internal surface of which a studded blanket is applied called FONOSPHERA SF5 manufactured by ITES S.p.A., maximum thickness 7 mm and minimum thickness mm, this consisting of a studded layer of closed-cell crosslinked polyethylene, density 30 kg/m³, and a layer of polymer mass and mineral fillers, thickness mm. The measurement was performed in two steps: vibration velocity measurements for evaluation of the sound reduction index of the partition without cladding; vibration velocity measurements for evaluation of the sound reduction index of the partition with cladding installed. Photo of partition during installation of cladding Photo of specimens of the FONOSPHERA SF5 insulation blanket

3 (Validation report No dated 7/0/06) sheet 3 of 9 follows CROSS SECTION OF THE PARTITION BEFORE AND AFTER INSTALLATION OF THE CLADDING Partition without cladding Inner side Partition with cladding installed Inner side Symbol Masonry wall, thickness 300 mm Plasterboard, thickness,5 mm; Key Description 3 Load-bearing framework: steel channel, depth 50 mm 4 Mineral wool blanket, thickness 50 mm and density 50 kg/m³ 5 GIPS FASER H gypsum fibreboard, thickness mm, supplied by Global Building S.r.l. 6 FONOSPHERA SF5 studded insulation blanket manufactured by ITES S.p.A., maximum thickness 7 mm and minimum thickness mm, consisting of a studded layer of closed-cell cross-linked polyethylene, density 30 kg/m³, and a layer of polymer mass and mineral fillers, thickness mm 7 Gypsum plaster finish 8 Low modulus silicone sealant

4 (Validation report No dated 7/0/06) sheet 4 of 9 follows Normative references The test was carried out in accordance with the requirements of the following standards: Annex C Misurazione della trasmissione laterale ( Measurement of flanking transmission ) of standard UNI EN ISO 40-4:000 dated 3//000 Acustica - Misurazione dell isolamento acustico in edifici e di elementi di edificio - Misurazioni in opera dell isolamento acustico per via aerea tra ambienti ( Acoustics - Measurement of sound insulation in buildings and of building elements - Field measurements of airborne sound insulation between rooms ); UNI EN ISO 77-:007 dated 9/07/007 Acustica. Valutazione dell isolamento acustico in edifici e di elementi di edificio. Parte : Isolamento acustico per via aerea ( Acoustics. Rating of sound insulation in buildings and of building elements. Part : Airborne sound insulation ). Test apparatus The following equipment was used to carry out the test: Sinus Messtecnik Soundbook Quadro four-channel real-time analyser, serial number 64; Look Line DL 30 dodecahedral speaker; Look Line D 30 power amplifier; DJB Instruments A/0/V accelerometer, serial number 3037; APT AT0 accelerometer calibrator, serial number 9; complementary accessories. Test method The source room has an opening designed to house a French door leading onto a large external terrace and this opening has been filled with the partition to be measured. After positioning the sound source inside the room, the sound pressure level was measured at various frequencies within the range 00 Hz to 5000 Hz along with the surface velocity level of the specimen at various points of the outward-facing surface, using an accelerometer well attached with beeswax.

5 (Validation report No dated 7/0/06) sheet 5 of 9 follows The sound reduction index of a partition is generally given by the equation: W R = 0Log W specimen where: R = sound reduction index in db; W = sound power incident on the entire partition, in W; W specimen = sound power transmitted by specimen, in W. The sound power W incident on the specimen is given by: STOT P W = 4 ρ c where: W = sound power incident on the entire partition, in W; S TOT = overall area of the entire partition = 0,4 m²; P = spatial average of the sound pressure in the source room squared, in Pa; ρ c = characteristic impedance of air, in kg/m² s. The sound power transmitted by the specimen W specimen is related to the vibration velocity of its emitting surface by the following equation: W specimen = S specimen ρ c V σ k where: W specimen = sound power transmitted by specimen, in W; S specimen = specimen surface area =,9 m²; σ k V ρ c = radiation efficiency, a figure of about above the critical frequency; = specimen surface velocity, in m/s; = characteristic impedance of air, in kg/m² s. The sound reduction index R is therefore provided by the following equation: R = 0Log S campione S TOT P 4 ρ c V σk The single-number quantity R w of the sound reduction index R is equal to the value in db of the reference curve at 500 Hz in accordance with the method specified by standard UNI EN ISO 77-:007.

6 (Validation report No dated 7/0/06) sheet 6 of 9 follows Average environmental conditions during test Ambient temperature 30 C Relative humidity 60 % Test room characteristics Source room volume 40, m³ Surface area of specimen (0,93,35 m),9 m² Generation of sound field Microphone positions in source room Accelerometer positions on specimen surface White noise 6 microphone positions 6 evenly distributed positions

7 (Validation report No dated 7/0/06) sheet 7 of 9 follows Test results Frequency Source level PARTITION WITHOUT CLADDING Source pressure V ρ c σ k R [Hz] [db] [Pa] [m/s] [kg/m² s] [db] 00 8,6 0,3 9,03559 E-05 45,03 7,8 5 89,8 0,6 9,64693 E-05 45,03 4, , 0,5 5,65539 E-05 45,03 7,4 00 9,6 0,8 6,64477 E-05 45,03 9, ,5 0,6 5,0433 E-05 45,03 9,7 35 9,0 0,7 4,04894 E-05 45,03 33, ,7 0,6 3,7759 E-05 45,03 3, ,4 0,6,4763 E-05 45,03 36, ,4 0,7,09997 E-05 45,03 38, ,9 0,6,50903 E-05 45,03 40, ,7 0,6,47 E-05 45,03 43,0 50 9,4 0,7 9,933 E-06 45,03 45, ,9 0,4 4,338 E-06 45,03 47, ,7 0,4 4,6909 E-06 45,03 48, ,9 0,7 6,94575 E-06 45,03 48, ,9 0,7 5,45937 E-06 45,03 50, ,8 0,6,67343 E-06 45,03 55, ,0 0,6,364 E-06 45,03 6,8 Sound reduction index R w 40 db

8 (Validation report No dated 7/0/06) sheet 8 of 9 follows Frequency Source level PARTITION WITH CLADDING INSTALLED Source pressure V ρ c σ k R [Hz] [db] [Pa] [m/s] [kg/m² s] [db] 00 8,6 0,3 0, ,03 5,3 5 89,8 0,6 6,856 E-05 45,03 7, , 0,5 3,3556 E-05 45,03 3,0 00 9,6 0,8 4,68549 E-05 45,03 3, ,5 0,6,9337 E-05 45,03 34,4 35 9,0 0,7,4548 E-05 45,03 37, ,7 0,6,0998 E-05 45,03 37, ,4 0,6,763 E-05 45,03 4, ,4 0,7 8,7666 E-06 45,03 45, ,9 0,6 5,6777 E-06 45,03 49, ,7 0,6 4,64393 E-06 45,03 50,6 50 9,4 0,7 4,3878 E-06 45,03 5, ,9 0,4,8507 E-06 45,03 54, ,7 0,4,6505 E-06 45,03 56, ,9 0,7,596 E-06 45,03 58, ,9 0,7,43708 E-06 45,03 6, ,8 0,6 5,679 E-07 45,03 69, ,0 0,6,4056 E-07 45,03 76,6 Sound reduction index R w 44 db

9 (Validation report No dated 7/0/06) sheet 9 of 9 follows The following graph and table compare the sound reduction index values obtained for the partition with and without the cladding fitted with FONOSPHERA SF5 insulation blanket R [db] Frequency Partition without cladding Partition with cladding installed Comparative graph of results Sound insulation index Rw Improvement ΔRw [db] [db] Partition without cladding 40 Partition with cladding installed 44 4 Test Technician: Dott. Andrea Bruschi Head of Acoustics and Vibrations Laboratory: Dott. Ing. Roberto Baruffa Chief Executive Officer (Dott. Arch. Sara Lorenza Giordano)... Firmato digitalmente da GIORDANO SARA LORENZA The original of this document consists of an electronic document with a digital signature affixed pursuant to DPR (Presidential Decree) 53/97.