British Gypsum East Leake 20116LC.pdf · 2017-11-24 · Applicant: British Gypsum BTC 20116LC: Page 1 of 47 The Building Test Centre British Gypsum East Leake Loughborough Leics

Applicant: British Gypsum BTC 20116LC: Page 1 of 47

The Building Test Centre British Gypsum

East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564

Fax (0115) 945 1562 Email [email protected] Website www.btconline.co.uk

Assessment Number BTC 20116 LC

A LETTER OF CONFORMITY FOR THE ESTIMATION OF THE ACOUSTIC PERFORMANCE THAT SHOWS SYSTEMS COMPRISING ALL OR PARTIALLY 48/50mm OR 70/72mm DEEP GYPFRAME ULTRAEMBOSSEDTM PROFILES WILL ACHIEVE THE SAME AIRBORNE SOUND INSULATION PERFORMANCE AS SYSTEMS COMPRISING 48/50mm OR 70/72mm DEEP GYPFRAME ULTRASTEELTM PROFILES

Assessment Date: 8th June 2017

www.btconline.co.uk

Applicant: British Gypsum East Leake Loughborough Leicestershire LE12 6HX



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


TABLE OF CONTENTS

DETAILS OF THE REQUEST ............................................................................................. 4

Table 1. Proposed changes to metalwork in DETAILS OF REQUEST .................................. 4

THE ASSESSORS .............................................................................................................. 5

ASSESSMENT AUTHORISATION ..................................................................................... 5

TEST EVIDENCE ................................................................................................................ 6

Test report Number BTC 20036A .............................................................................................. 6

Test Number H20036AA ............................................................................................................ 6

Test report Number BTC 20078A .............................................................................................. 8

Test Number H20078AA ............................................................................................................ 8

Test report Number BTC 20038A ............................................................................................ 11

Test Number H20038AA .......................................................................................................... 11


Test Number H20080AA .......................................................................................................... 14


Test Number H19851AA .......................................................................................................... 17


Test Number H20106BA .......................................................................................................... 20


Test Number H20097AA .......................................................................................................... 22


Test Number H19984AA .......................................................................................................... 26


Test Number H20076AA .......................................................................................................... 30


Test Number H19974AA .......................................................................................................... 33


Test Number H20102AA .......................................................................................................... 37



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


DISCUSSION .................................................................................................................... 42

Table 2. Comparison of UltraSteelTM profiles and UltraEMBOSSEDTM profiles test results 42

Table 3. Changes in insulation density throughout comparison tests ................................ 43

CONCLUSION ................................................................................................................... 44

LIMITATIONS .................................................................................................................... 45

DECLARATION BY THE APPLICANT ............................................................................. 46

AUTHORITY FOR USE OF TEST EVIDENCE .................................................................. 47



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


DETAILS OF THE REQUEST Letter of conformity to cover the following systems where 48mm and 70mm deep C studs are used: - GypWall CLASSIC, GypWall QUIET & GypWall QUIET SF. These systems contain a range of different cladding and insulation options. It is required to assess that if the metalwork in the above systems were replaced, as given in Table 1, an equivalent airborne sound insulation performance would be achieved, if tested in accordance with BS EN ISO 10140-2: 2010 and rated in accordance with BS EN ISO 717-1: 2013, with the same cladding and /or insulation option.

Metal Component

Current – UltraSTEELTM Profile New - UltraEMBOSSEDTM Profile

Stud 48S50 0.5mm gauge

made from galvanised mild steel using UltraSTEEL process

48mm deep 0.5mm gauge with revised profile of same depth using embossing technology*

70S50 70mm deep

Channel

50FEC 50 50mm deep

72FEC50 72mm deep

* Embossing technology: - for studs: puts reinforcing rib into web-flange & flange-return corners. Flange

lengths 5mm longer - for channel: puts reinforcing rib into web-flange corners

Table 1. Proposed changes to metalwork in DETAILS OF REQUEST



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


THE ASSESSORS The Building Test Centre operates as an independent accredited test house for the construction industry. The Building Test Centre has unrivalled experience in the development of drywall systems. The Building Test Centre is UKAS accredited under No. 0296 for fire resistance, reaction to fire, acoustic and structural testing. The Building Test Centre is wholly owned by British Gypsum Limited a major manufacturer of building products.

ASSESSMENT AUTHORISATION

This assessment is not valid unless it incorporates the Declaration by Applicant form duly signed by the applicant.

Assessment Author

James Stonell MIOA Scientist

Reviewing Assessor

Alexandra Ahern B.Eng, MIOA BTC Technical Manager



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


TEST EVIDENCE The test evidence used in this assessment has been used under the authorisation of the test report owner and has been used with their permission (see pages 46 and 47). Furthermore, the test evidence has been reviewed by The Building Test Centre to ensure that the test reports are still valid. All test evidence is presented in its original format, including figure and table numbers. Test report Number BTC 20036A An acoustic test report covering laboratory sound insulation testing to BS EN ISO 10140-2:2010 on a British Gypsum GypWall Classic partition clad with a single layer of 12.5mm Gyproc WallBoard each side. (Baseline test). Test Number H20036AA

TEST CONSTRUCTION The test specimen was constructed in an aperture having an overall opening of 2400mm (high) x 3600mm (wide). Gypframe 50FEC50 Folded Edge Standard Floor and Ceiling Channels were fixed to the head and base of the test aperture at 600mm centres using 25mm British Gypsum Drywall Screws. Gypframe 48S50 'C' Studs were positioned between the head and base channels at each end of the aperture and fixed using 25mm British Gypsum Drywall Screws spaced at 600mm centres. Gypframe 48S50 'C' Studs were positioned between the head and base channels at 600mm centres. The framework was clad with a single layer of 12.5mm Gyproc WallBoard each side. The boards were screw fixed around the perimeter of the board and the intermediate stud positions at 300mm centres using 25mm British Gypsum Drywall Screws. All vertical joints were staggered between layers. All joints and screw heads were taped and the perimeter was taped and sealed with Gyproc Sealant.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


Figure 1. Horizontal cross section view of specimen.

TEST MATERIALS Plasterboard i) Nominally 2400mm (long) x 1200mm (wide) x 12.5mm (thick) Gyproc WallBoard

manufactured by British Gypsum, ex East Leake. Surface density: 8.5kg/m2 Average thickness: 12.6mm Board Code: 16 089 17 11:08 16 089 17 11:07 16 089 17 11:07 The surface densities were calculated using the actual weight and size of a selection of the boards used in the test specimen. Material dimensions were supplied by the customer. Metal Components i) 0.5mm thick Gypframe 48S50 'C' Studs. ii) 0.5mm thick Gypframe 50FEC50 Folded Edge Standard Floor and Ceiling Channels

a) Single layer of 12.5mm Gyproc WallBoard.

b) Gypframe 48S50

'C' Studs @ 600mm c/c.

a) b)



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


All metal components are manufactured from galvanised mild steel using the ‘UltraSTEEL’ process and supplied by British Gypsum. Fasteners i) 25mm British Gypsum Drywall Screws. All fasteners supplied by British Gypsum. Miscellaneous Components i) Gyproc Sealant supplied by British Gypsum. ii) Joint tape supplied by The Building Test Centre.

TEST RESULTS

Test Code Description

Weighted Airborne Sound Reduction Index

Rw (C; Ctr)

H20036AA Single layer of 12.5mm Gyproc WallBoard each side on

Gypframe 48S50 'C' Studs. (Baseline test) 34 (-2;-7) dB

The test was carried to BS EN ISO 10140-2:2010 and rated in accordance with BS EN ISO 717-1: 2013 on the 20th April 2017 at the Building Test Centre on behalf of British Gypsum. Test report Number BTC 20078A An acoustic test report covering laboratory sound insulation testing to BS EN ISO 10140-2:2010 on a British Gypsum GypWall Classic partition clad with a single layer of 12.5mm Gyproc WallBoard each side. (Ultraembossed profiles). Test Number H20078AA

TEST CONSTRUCTION The test specimen was constructed in an aperture having an overall opening of 2400mm (high) x 3600mm (wide). Gypframe 50FEC50 Folded Edge Standard Floor and Ceiling Channels were fixed to the head and base of the test aperture at 600mm centres using 25mm British Gypsum Drywall Screws.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


Gypframe 48S50 'C' Studs were positioned between the head and base channels at each end of the aperture and fixed using 25mm British Gypsum Drywall Screws spaced at 600mm centres. Gypframe 48S50 'C' Studs were positioned between the head and base channels at 600mm centres. The framework was clad with a single layer of 12.5mm Gyproc WallBoard each side. The boards were screw fixed around the perimeter of the board and the intermediate stud positions at 300mm centres using 25mm British Gypsum Drywall Screws. All vertical joints were staggered between layers. All joints and screw heads were taped and the perimeter was taped and sealed with Gyproc Sealant.

Figure 1. Horizontal cross section view


manufactured by British Gypsum, ex East Leake.

a) Single layer of 12.5mm Gyproc WallBoard.

b) Gypframe 48S50 'C' Studs @ 600mm c/c.

a) b)



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


Surface density: 8.5kg/m2 Average thickness: 12.6mm Board Code: 16 089 17 11:08 16 089 17 11:07 16 089 17 11:07 The surface densities were calculated using the actual weight and size of a selection of the boards used in the test specimen. Material dimensions were supplied by the customer. Metal Components i) 0.5mm thick Gypframe 48S50 'C' Studs. ii) 0.5mm thick Gypframe 50FEC50 Folded Edge Standard Floor and Ceiling Channels All metal components are manufactured from galvanised mild steel using the ‘UltraEMBOSSEDTM’ process and supplied by British Gypsum. Fasteners i) 25mm British Gypsum Drywall Screws. All fasteners supplied by British Gypsum. Miscellaneous Components i) Gyproc Sealant supplied by British Gypsum. ii) Joint tape supplied by The Building Test Centre.

TEST RESULTS



Rw (C; Ctr)

H20078AA Single layer of 12.5mm Gyproc WallBoard each side on

Gypframe 48S50 'C' Studs (Ultraembossed profile). 35 (-2;-7) dB



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


The test was carried to BS EN ISO 10140-2:2010 and rated in accordance with BS EN ISO 717-1: 2013 on the 15th May 2017 at the Building Test Centre on behalf of British Gypsum. Test report Number BTC 20038A An acoustic test report covering laboratory sound insulation testing to BS EN ISO 10140-2:2010 on a British Gypsum GypWall Classic partition clad with a double layer of 12.5mm Gyproc WallBoard each side. (Basline Test). Test Number H20038AA

TEST CONSTRUCTION The test specimen was constructed in an aperture having an overall opening of 2400mm (high) x 3600mm (wide). Gypframe 50FEC50 Folded Edge Standard Floor and Ceiling Channels were fixed to the head and base of the test aperture at 600mm centres using 25mm British Gypsum Drywall Screws. Gypframe 48S50 'C' Studs were positioned between the head and base channels at each end of the aperture and fixed using 25mm British Gypsum Drywall Screws spaced at 600mm centres. Gypframe 48S50 'C' Studs were positioned between the head and base channels at 600mm centres. The framework was clad with a double layer of 12.5mm Gyproc WallBoard each side. The inner layer of boards was screw fixed around the perimeter of the board at 300mm centres using 25mm British Gypsum Drywall Screws. The outer layer of boards was screw fixed around the perimeter of the board and the intermediate stud positions at 300mm centres using 35mm British Gypsum Drywall Screws. All vertical joints were staggered between layers. All joints and screw heads were taped and the perimeter was taped and sealed with Gyproc Sealant.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564




manufactured by British Gypsum, ex East Leake. Surface density: 8.5kg/m2 Average thickness: 12.6mm Board Code: 16 089 17 11:08 16 089 17 11:07 16 089 17 11:07 The surface densities were calculated using the actual weight and size of a selection of the boards used in the test specimen. Material dimensions were supplied by the customer.

a) Double layer of 12.5mm Gyproc WallBoard.


a) b)



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


Metal Components i) 0.5mm thick Gypframe 48S50 'C' Studs. ii) 0.5mm thick Gypframe 50FEC50 Folded Edge Standard Floor and Ceiling Channels All metal components are manufactured from galvanised mild steel using the ‘UltraSTEEL’ process and supplied by British Gypsum. Fasteners i) 25mm British Gypsum Drywall Screws. ii) 35mm British Gypsum Drywall Screws. All fasteners supplied by British Gypsum. Miscellaneous Components i) Gyproc Sealant supplied by British Gypsum. ii) Joint tape supplied by The Building Test Centre.

TEST RESULTS



Rw (C; Ctr)

H20038AA Double layer of 12.5mm Gyproc WallBoard each side on

Gypframe 48S50 'C' Studs. 41 (-3; -9) dB

The test was carried to BS EN ISO 10140-2:2010 and rated in accordance with BS EN ISO 717-1: 2013 on the 20th April 2017 at the Building Test Centre on behalf of British Gypsum. Test report Number BTC 20080A An acoustic test report covering laboratory sound insulation testing to BS EN ISO 10140-2:2010 on a British Gypsum GypWall Classic partition clad with a double layer of 12.5mm Gyproc WallBoard each side. (Ultraembossed Profile).



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


Test Number H20080AA

TEST CONSTRUCTION The test specimen was constructed in an aperture having an overall opening of 2400mm (high) x 3600mm (wide). Gypframe 50FEC50 Folded Edge Standard Floor and Ceiling Channels were fixed to the head and base of the test aperture at 600mm centres using 25mm British Gypsum Drywall Screws. Gypframe 48S50 'C' Studs were positioned between the head and base channels at each end of the aperture and fixed using 25mm British Gypsum Drywall Screws spaced at 600mm centres. Gypframe 48S50 'C' Studs were positioned between the head and base channels at 600mm centres. The framework was clad with a double layer of 12.5mm Gyproc WallBoard each side. The inner layer of boards was screw fixed around the perimeter of the board at 300mm centres using 25mm British Gypsum Drywall Screws. The outer layer of boards was screw fixed around the perimeter of the board and the intermediate stud positions at 300mm centres using 35mm British Gypsum Drywall Screws. All vertical joints were staggered between layers. All joints and screw heads were taped and the perimeter was taped and sealed with Gyproc Sealant.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564





a) Double layer of 12.5mm Gyproc WallBoard.


a) b)



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


Metal Components i) 0.5mm thick Gypframe 48S50 'C' Studs. ii) 0.5mm thick Gypframe 50FEC50 Folded Edge Standard Floor and Ceiling Channels All metal components are manufactured from galvanised mild steel using the ‘UltraEMBOSSEDTM’ process and supplied by British Gypsum. Fasteners i) 25mm British Gypsum Drywall Screws. ii) 35mm British Gypsum Drywall Screws. All fasteners supplied by British Gypsum. Miscellaneous Components i) Gyproc Sealant supplied by British Gypsum. ii) Joint tape supplied by The Building Test Centre.

TEST RESULTS



Rw (C; Ctr)

H20080AA Double layer of 12.5mm Gyproc WallBoard each side on

Gypframe 48S50 'C' Studs (Ultraembossed Profile). 42 (-3; -10) dB

The test was carried to BS EN ISO 10140-2:2010 and rated in accordance with BS EN ISO 717-1: 2013 on the 16th May 2017 at the Building Test Centre on behalf of British Gypsum.

Test report Number BTC 19851A An acoustic test report covering laboratory sound insulation testing to BS EN ISO 10140-2:2010 on a British Gypsum GypWall Classic partition clad with a double and single layer of 15mm Gyproc SoundBloc each side with 50mm Isover APR 1200 insulation in the cavity.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


Test Number H19851AA

TEST CONSTRUCTION H19851AA The test specimen was constructed in an aperture having an overall opening of 2400mm (high) x 3600mm (wide). Gypframe 72FEC50 Folded Edge Standard Floor and Ceiling Channels were fixed to the head and base of the test aperture at 600mm centres using 25mm British Gypsum Drywall Screws. Gypframe 70S50 'C' Studs were positioned between the head and base channels at each end of the aperture and fixed using 25mm British Gypsum Drywall Screws spaced at 600mm centres. Gypframe 70S50 'C' Studs were positioned between the head and base channels at 600mm centres. 50mm Isover APR 1200 insulation was placed within the stud cavity. The framework was clad with a double layer of 15mm Gyproc SoundBloc each side. The inner layer of boards was screw fixed around the perimeter of the board at 300mm centres using 25mm British Gypsum Drywall Screws. The outer layer of boards was screw fixed around the perimeter of the board and the intermediate stud positions at 300mm centres using 40mm British Gypsum Drywall Screws. All vertical joints were staggered between layers. All joints and screw heads were taped and the perimeter was taped and sealed with Gyproc Sealant.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


Figure 1. Horizontal cross section view of specimen H19851AA.

TEST MATERIALS Plasterboard i) Nominally 2400mm (long) x 1200mm (wide) x 15mm (thick) Gyproc SoundBloc


a) Double layer of 15mm Gyproc SoundBloc.

b) Gypframe 70S50

'C' Studs @ 600mm c/c.

c) 50mm Isover APR

1200 insulation.

a) b) c)



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


Insulation i) Nominally 50mm thick Isover APR 1200 insulation supplied by British Gypsum.

Average area 15.60m² Average weight 10.44kg

Density 13.38kg/m³ The density was calculated using the actual weight and size of the insulation used in the test specimen. Material dimensions were supplied by the customer. Metal Components i) 0.5mm thick Gypframe 70S50 'C' Studs. ii) 0.5mm thick Gypframe 72FEC50 Folded Edge Standard Floor and Ceiling Channels All metal components are manufactured from galvanised mild steel using the ‘UltraSTEEL’ process and supplied by British Gypsum. Fasteners i) 25mm British Gypsum Drywall Screws. ii) 40mm British Gypsum Drywall Screws. All fasteners supplied by British Gypsum. Miscellaneous Components i) Gyproc Sealant supplied by British Gypsum. ii) Joint tape supplied by The Building Test Centre.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


TEST RESULTS



Rw (C; Ctr)

H19851AA Double layer of 15mm Gyproc SoundBloc each side on Gypframe 70S50 'C' Studs with 50mm Isover APR 1200

insulation in the cavity. 55 (-3;-8) dB

The test was carried to BS EN ISO 10140-2:2010 and rated in accordance with BS EN ISO 717-1: 2013 on the 6th December 2016 at the Building Test Centre on behalf of British Gypsum. Test report Number BTC 20106A An acoustic test report covering laboratory sound insulation testing to BS EN ISO 10140-2:2010 on a British Gypsum GypWall Classic partition clad with a double layer of 15mm Gyproc SoundBloc each side with 50mm Isover APR 1200 Insulation in the cavity. (Ultraembossed profiles). Test Number H20106BA

TEST CONSTRUCTION H20106AA The test specimen was constructed in an aperture having an overall opening of 2400mm (high) x 3600mm (wide). Gypframe 72FEC50 Folded Edge Standard Floor and Ceiling Channels were fixed to the head and base of the test aperture at 600mm centres using 25mm British Gypsum Drywall Screws. Gypframe 70S50 'C' Studs were positioned between the head and base channels at each end of the aperture and fixed using 25mm British Gypsum Drywall Screws spaced at 600mm centres. Gypframe 70S50 'C' Studs were positioned between the head and base channels at 600mm centres. 50mm Isover APR 1200 insulation was placed within the stud cavity. The framework was clad with a double layer of 15mm Gyproc SoundBloc each side.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


The inner layer of boards was screw fixed around the perimeter of the board and the intermediate stud positions at 300mm centres using 25mm British Gypsum Drywall Screws. The outer layer of boards was screw fixed around the perimeter of the board and the intermediate stud positions at 300mm centres using 40mm British Gypsum Drywall Screws. All vertical joints were staggered between layers. All joints and screw heads were taped and the perimeter was taped and sealed with Gyproc Sealant. H20106BA As H20106AA except screws were removed from intermediate studs on the inner layer of boards on each side.


manufactured by British Gypsum, ex East Leake. Surface density: 13.8kg/m2 Average thickness: 15.2mm Board Code: 16 131 17 06:37 16 131 17 06:37 16 131 17 06:39 The surface densities were calculated using the actual weight and size of a selection of the boards used in the test specimen. Material dimensions were supplied by the customer. Insulation i) Nominally 50mm thick Isover APR 1200 insulation supplied by British Gypsum.


Density 13.58kg/m³ The density was calculated using the actual weight and size of the insulation used in the test specimen.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


Metal Components i) 0.5mm thick Gypframe 70S50 'C' Studs. ii) 0.5mm thick Gypframe 72FEC50 Folded Edge Standard Floor and Ceiling Channels All metal components are manufactured from galvanised mild steel using the ‘UltraEMBOSSEDTM’ process and supplied by British Gypsum. Fasteners

i) 25mm British Gypsum Drywall Screws. ii) 40mm British Gypsum Drywall Screws. All fasteners supplied by British Gypsum. Miscellaneous Components i) Gyproc Sealant supplied by British Gypsum. ii) Joint tape supplied by The Building Test Centre.

TEST RESULTS



Rw (C; Ctr)

H20106BA

Double layer of 15mm Gyproc SoundBloc each side on Gypframe 70S50 'C' Studs with 50mm Isover APR 1200 Insulation in the cavity. (Ultraembossed profiles) screw

fixed around perimeter only on inner layer boards on each side.

57 (-3;-8) dB

The test was carried to BS EN ISO 10140-2:2010 and rated in accordance with BS EN ISO 717-1: 2013 on the 1st June 2017 at the Building Test Centre on behalf of British Gypsum. Test report Number BTC 20097A An acoustic test report covering laboratory sound insulation testing to BS EN ISO 10140-2:2010 on a British Gypsum GypWall Classic partition clad with a double layer of 15mm Gyproc SoundBloc each side with 50mm Isover APR 1200 insulation in the cavity. (Ultraembossed Stud - US2 Track). Test Number H20097AA



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


TEST CONSTRUCTION The test specimen was constructed in an aperture having an overall opening of 2400mm (high) x 3600mm (wide). Gypframe 72FEC50 Folded Edge Standard Floor and Ceiling Channels were fixed to the head and base of the test aperture at 600mm centres using 25mm British Gypsum Drywall Screws. Gypframe 70S50 'C' Studs were positioned between the head and base channels at each end of the aperture and fixed using 25mm British Gypsum Drywall Screws spaced at 600mm centres. Gypframe 70S50 'C' Studs were positioned between the head and base channels at 600mm centres. 50mm Isover APR 1200 insulation was placed within the stud cavity. The framework was clad with a double layer of 15mm Gyproc SoundBloc each side. The inner layer of boards was screw fixed around the perimeter of the board at 300mm centres using 25mm British Gypsum Drywall Screws. The outer layer of boards was screw fixed around the perimeter of the board and the intermediate stud positions at 300mm centres using 40mm British Gypsum Drywall Screws. All vertical joints were staggered between layers. All joints and screw heads were taped and the perimeter was taped and sealed with Gyproc Sealant.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564





a) Double layer of 15mm Gyproc SoundBloc.

b) Gypframe 70S50 'C'

Studs @ 600mm c/c.

c) 50mm Isover APR

1200 insulation.

a) b) c)



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


Insulation i) Nominally 50mm thick Isover APR 1200 insulation supplied by British Gypsum.


Density 13.51kg/m³ The density was calculated using the actual weight and size of the insulation used in the test specimen. Material dimensions were supplied by the customer. Metal Components i) 0.5mm thick Gypframe 70S50 'C' Studs. ii) 0.5mm thick Gypframe 72FEC50 Folded Edge Standard Floor and Ceiling Channels All metal studs are manufactured from galvanised mild steel using the ‘UltraEMBOSSEDTM’ process . All metal channels are manufactured from galvanised mild steel using the ‘UltraSTEEL’ process. All metal work supplied by British Gypsum. Fasteners i) 25mm British Gypsum Drywall Screws. ii) 40mm British Gypsum Drywall Screws. All fasteners supplied by British Gypsum. Miscellaneous Components i) Gyproc Sealant supplied by British Gypsum. ii) Joint tape supplied by The Building Test Centre.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


TEST RESULTS



Rw (C; Ctr)

H20097AA Double layer of 15mm Gyproc SoundBloc each side on Gypframe 70S50 'C' Studs with 50mm Isover APR 1200

insulation in the cavity. 56 (-2;-8) dB

The test was carried to BS EN ISO 10140-2:2010 and rated in accordance with BS EN ISO 717-1: 2013 on the 30th May 2017 at the Building Test Centre on behalf of British Gypsum. Test report Number BTC 19984A An acoustic test report covering laboratory sound insulation testing to BS EN ISO 10140-2:2010 on a British Gypsum GypWall Quiet twin frame partition clad with an inner layer of 12.5mm Gyproc Habito and an outer layer of 12.5mm Gyproc SoundBloc each side with 25mm Isover APR 1200 insulation in the cavity and braced at mid-height with Gypframe 99FC50 Fixing Channel. Test Number H19984AA

TEST CONSTRUCTION The test specimen was constructed in an aperture having an overall opening of 2400mm (high) x 3600mm (wide). Gypframe 50FEC50 Folded Edge Standard Floor and Ceiling Channels were fixed to the head and base of the test aperture at 600mm centres using 25mm British Gypsum Drywall Screws. Gypframe 48S50 'C' Studs were positioned between the head and base channels at each end of the aperture and fixed using 25mm British Gypsum Drywall Screws spaced at 600mm centres. Gypframe 48S50 'C' Studs were positioned between the head and base channels at 600mm centres. A second framework using the same components and fixing details was located to create the twin frame and a final partition thickness of 200mm. The Gypframe 48S50 ‘C’ Studs were located at 600mm centres parallel with the first set of framework studs. Gypframe 99FC50 Fixing Channel braces were installed between opposing studs at mid height and fixed to each stud using two 13mm British Gypsum Wafer Head Drywall Screws. (4 per brace in total).



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


25mm Isover Acoustic Partition Roll 1200 insulation was placed within the stud cavity. The framework was clad with an inner layer of 12.5mm Gyproc Habito and an outer layer of 12.5mm Gyproc SoundBloc each side. The inner layer of boards was screw fixed around the perimeter of the board at 600mm centres using 25mm British Gypsum High Performance Fixings. The outer layer of boards was screw fixed around the perimeter of the board and intermediate stud positions at 300mm centres using 35mm British Gypsum Drywall Screws. All vertical joints were staggered between layers and between frameworks. All joints and screw heads were taped and the perimeter was taped and sealed with Gyproc Sealant.

Figure 1. Horizontal cross section view of specimen.

a) Inner layer of 12.5mm Gyproc Habito / Outer layer of 12.5mm Gyproc SoundBloc.

b) Gypframe 48S50 ‘C’

Studs @ 600mm c/c. c) Gypframe 99FC50

Fixing Channel brace.

d) 25mm Isover APR 1200 Insulation.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


TEST MATERIALS Plasterboard i) Nominally 2400mm (long) x 1200mm (wide) x 12.5mm (thick) Gyproc Habito manufactured

by British Gypsum, ex Sherburn. Surface density: 12.3kg/m2 Average thickness: 12.8mm Board Code: 31 059 17 13:35 31 059 17 13:34 31 059 17 13:34 ii) Nominally 2400mm (long) x 1200mm (wide) x 12.5mm (thick) Gyproc SoundBloc

manufactured by British Gypsum, ex East Leake. Surface density: 11.3kg/m2 Average thickness: 12.4mm Board Code: 16 071 17 21:05 16 071 17 21:05 16 071 17 21:05 The surface densities were calculated using the actual weight and size of a selection of the boards used in the test specimen. Material dimensions were supplied by the customer. Insulation i) Nominally 25mm thick Isover APR 1200 insulation supplied by British Gypsum.


Density 17.6kg/m³ The density was calculated using the actual weight and size of the insulation used in the test specimen. Material dimensions were supplied by the customer.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


Metal Components i) 0.5mm thick Gypframe 48S50 'C' Studs. ii) 0.5mm thick Gypframe 50FEC50 Folded Edge Standard Floor and Ceiling Channels iii) 0.5mm thick Gypframe 99FC50 Fixing Channel. All metal components are manufactured from galvanised mild steel using the ‘UltraSTEEL’ process and supplied by British Gypsum. Fasteners i) 25mm British Gypsum Drywall Screws. ii) 25mm British Gypsum High Performance Fixings. iii) 35mm British Gypsum Drywall Screws. iv) 13mm British Gypsum Wafer Head Drywall Screws. All fasteners supplied by British Gypsum. Miscellaneous Components i) Gyproc Sealant supplied by British Gypsum. ii) Joint tape supplied by The Building Test Centre.

TEST RESULTS



Rw (C; Ctr)

H19984AA

Quiet twin frame partition clad with an inner layer of 12.5mm Gyproc Habito and an outer layer of 12.5mm

Gyproc SoundBloc each side with 25mm Isover APR 1200 insulation in the cavity and braced at mid-height with

Gypframe 99FC50 Fixing Channel.

62 (-2;-8) dB

The test was carried to BS EN ISO 10140-2:2010 and rated in accordance with BS EN ISO 717-1: 2013 on the 4th April 2017 at the Building Test Centre on behalf of British Gypsum.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


Test report Number BTC 20076A An acoustic test report covering laboratory sound insulation testing to BS EN ISO 10140-2:2010 on a British Gypsum GypWall Quiet partition clad with an inner layer of 12.5mm Gyproc Habito and an outer layer of 12.5mm Gyproc SoundBloc each side with 25mm Isover APR 1200 insulation in the cavity. (Ultraembossed profiles). Test Number H20076AA

TEST CONSTRUCTION The test specimen was constructed in an aperture having an overall opening of 2400mm (high) x 3600mm (wide). Gypframe 50FEC50 Folded Edge Standard Floor and Ceiling Channels were fixed to the head and base of the test aperture at 600mm centres using 25mm British Gypsum Drywall Screws. Gypframe 48S50 'C' Studs were positioned between the head and base channels at each end of the aperture and fixed using 25mm British Gypsum Drywall Screws spaced at 600mm centres. Gypframe 48S50 'C' Studs were positioned between the head and base channels at 600mm centres. A second framework using the same components and fixing details was located to create the twin frame and a final partition thickness of 200mm. The Gypframe 48S50 ‘C’ Studs were located at 600mm centres parallel with the first set of framework studs. Gypframe 99FC50 Fixing Channel braces were installed between opposing studs at mid height and fixed using two British Gypsum Wafer Head Screws on each stud web (4 per brace in total). 25mm Isover APR 1200 insulation was placed within the stud cavity. The framework was clad with an inner layer of 12.5mm Gyproc Habito and an outer layer of 12.5mm Gyproc SoundBloc each side. The inner layer of boards was screw fixed around the perimeter of the board at 600mm centres using 25mm British Gypsum High Performance Fixings. The outer layer of boards was screw fixed around the perimeter of the board and the intermediate stud positions at 300mm centres using 35mm British Gypsum Drywall Screws. All vertical joints were staggered between layers. All joints and screw heads were taped and the perimeter was taped and sealed with Gyproc Sealant.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564




by British Gypsum, ex Sherburn. Surface density: 12.3kg/m2 Average thickness: 12.8mm Board Code: 31 059 17 13:35 31 059 17 13:34 31 059 17 13:34

a) Double layer of 12.5mm Gyproc Habito (inner layer) and 12.5mm Gyproc SoundBloc (outer).

b) Twin frame comprising of Gypframe 48S50 'C' Studs @ 600mm c/c braced with 99FC50 Fixing channel.

c) 25mm Isover APR 1200 insulation.

a) b) c)



East Leake

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Leics. LE12 6NP

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ii) Nominally 2400mm (long) x 1200mm (wide) x 12.5mm (thick) Gyproc SoundBloc manufactured by British Gypsum, ex East Leake.

Surface density: 11.3kg/m2 Average thickness: 12.4mm Board Code: 16 071 17 21:05 16 071 17 21:05 16 071 17 21:05 The surface densities were calculated using the actual weight and size of a selection of the boards used in the test specimen. Material dimensions were supplied by the customer. Insulation i) Nominally 25mm thick Isover APR 1200 insulation supplied by British Gypsum.


Density 17.37kg/m³ The density was calculated using the actual weight and size of the insulation used in the test specimen. Material dimensions were supplied by the customer. Metal Components i) 0.5mm thick Gypframe 48S50 'C' Studs. ii) 0.5mm thick Gypframe 50FEC50 Folded Edge Standard Floor and Ceiling Channels

iii) 0.5mm thick Gypframe 99FC50 Fixing Channel All metal studs and channels are manufactured from galvanised mild steel using the ‘UltraEMBOSSEDTM’ process. All other metal components are manufactured from galvanised mild steel using the ‘UltraSTEEL’ process. All metal components supplied by British Gypsum. Fasteners i) 25mm British Gypsum Drywall Screws. ii) 25mm British Gypsum High Performance Fixings.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


iii) 35mm British Gypsum Drywall Screws. iv) 13mm British Gypsum Wafer Head Screws. All fasteners supplied by British Gypsum. Miscellaneous Components i) Gyproc Sealant supplied by British Gypsum. ii) Joint tape supplied by The Building Test Centre.

TEST RESULTS



Rw (C; Ctr)

H20076AA

Double layer of 12.5mm Gyproc Habito (inner) and 12.5mm Gyproc SoundBloc (outer) each side on Twin Frame

comprising of Gypframe 48S50 'C' Studs (Ultraembossed profile). with 25mm Isover APR 1200 in the cavity.

62 (-3;-10) dB

The test was carried to BS EN ISO 10140-2:2010 and rated in accordance with BS EN ISO 717-1: 2013 on the 15th May 2017 at the Building Test Centre on behalf of British Gypsum. Test report Number BTC 19974A An acoustic test report covering laboratory sound insulation testing to BS EN ISO 10140-2:2010 on a British Gypsum Quiet SF partition clad with an inner layer of 12.5mm Gyproc Habito and an outer layer of 15mm Gyproc SoundBloc each side with 25mm Isover APR 1200 insulation in the cavity. Test Number H19974AA

TEST CONSTRUCTION

The test specimen was constructed in an aperture having an overall opening of 2400mm (high) x 3600mm (wide).

Gypframe 72FEC50 Folded Edge Standard Floor and Ceiling Channels were fixed to the head and base of the test aperture at 600mm centres using 25mm British Gypsum Drywall Screws.

Gypframe 70S50 ‘C’ Studs were positioned between the head and base channels at each end of the aperture and fixed using 25mm British Gypsum Drywall Screws spaced at 600mm centres.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


Gypframe 70S50 ‘C’ Studs were positioned between the head and base channels at 600mm centres.

Gypframe RB1 Resilient Bar was fixed to the framework on the source room side at 600mm centres.

Resilient Bars were fixed perpendicular to the studs using 13mm Gyproc Wafer Head screws. The bars were fixed with the base flange on the top side with exception of the uppermost bar which is fixed base flange down to provide a board fixing at the head. Sections of resilient bar were installed vertically to the perimeter studs to accept perimeter board fixings.

25mm Isover APR 1200 insulation was placed within the stud cavity.

The framework was clad with an inner layer 12.5mm Gyproc Habito and an outer layer of 15mm Gyproc SoundBloc each side.

Resilient Bar side: An inner layer of Gyproc Habito was fixed to all framing members at 600mm centres using 25mm British Gypsum High Performance Fixings.

An outer layer of 15mm Gyproc SoundBloc was fixed to all framing members at 300mm centres using 40mm British Gypsum Drywall Screws.

Non-resilient bar side: An inner layer of Gyproc Habito was fixed at 600mm centres around the perimeter of the board using 25mm British Gypsum High Performance Fixings.

An outer layer of 15mm Gyproc SoundBloc was fixed at 300mm centres using around the perimeter and within the field of the board using 40mm British Gypsum Drywall Screws.

All vertical joints were staggered between layers. All joints and screw heads were taped and the perimeter was taped and sealed with Gyproc Sealant.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564




by British Gypsum, ex Sherburn. Surface density: 12.3kg/m2 Average thickness: 12.8mm Board Code: 31 059 17 13:35 31 059 17 13:34 31 059 17 13:34 ii) Nominally 2400mm (long) x 1200mm (wide) x 15mm (thick) Gyproc SoundBloc

manufactured by British Gypsum, ex Robertsbridge.

a) Inner layer of 12.5mm Gyproc Habito / Outer layer of 15mm Gyproc SoundBloc.

b) 25mm Isover APR 1200

Insulation.

c) Gypframe 70S50 ‘C’stud @ 600mm c/c.

d) Gypframe RB1 Resilient

Bar.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564



Average area 24m² Average weight 10.28kg

Density 17.1kg/m³ The density was calculated using the actual weight and size of the insulation used in the test specimen. Material dimensions were supplied by the customer. Metal Components i) 0.5mm thick Gypframe 72FEC50 Folded Edge Standard Floor and Ceiling. ii) 0.5mm thick Gypframe 70S50 ‘C’ Studs. iii) Gypframe RB1 Resilient Bar All metal components are manufactured from galvanised mild steel using the ‘UltraSTEEL’ process and supplied by British Gypsum. Fasteners i) 13mm British Gypsum Wafer Head Screws. ii) 25mm British Gypsum Drywall Screws. iii) 25mm British Gypsum High Performance Fixings. iv) 40mm British Gypsum Drywall Screws. All fasteners supplied by British Gypsum.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


Miscellaneous Components i) Gyproc Sealant supplied by British Gypsum. ii) Joint tape supplied by The Building Test Centre.

TEST RESULTS



Rw (C; Ctr)

H19974AA

Double layer of 12.5mm Gyproc Habito (inner) and 15mm Gyproc SoundBloc (outer) each side on Gypframe 70S50 ‘C’ Studs, resilient bar on source room side, and 25mm Isover

APR 1200 insulation in the cavity.

59 (-3; -9) dB

The test was carried to BS EN ISO 10140-2:2010 and rated in accordance with BS EN ISO 717-1: 2013 on the 22nd March 2017 at the Building Test Centre on behalf of British Gypsum. Test report Number BTC 20102A An acoustic test report covering laboratory sound insulation testing to BS EN ISO 10140-2:2010 on a British Gypsum GypWall Quiet SF partition clad with an inner layer of 12.5mm Gyproc Habito and an outer layer of 15mm Gyproc SoundBloc each side with 25mm Isover APR 1200 insulation in the cavity (ultraembossed profiles). Test Number H20102AA

TEST CONSTRUCTION The test specimen was constructed in an aperture having an overall opening of 2400mm (high) x 3600mm (wide). Gypframe 72FEC50 Folded Edge Standard Floor and Ceiling Channels were fixed to the head and base of the test aperture at 600mm centres using 25mm British Gypsum Drywall Screws. Gypframe 70S50 'C' Studs were positioned between the head and base channels at each end of the aperture and fixed using 25mm British Gypsum Drywall Screws spaced at 600mm centres. Gypframe 70S50 'C' Studs were positioned between the head and base channels at 600mm centres. 25mm Isover APR 1200 insulation was placed within the stud cavity.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


Gypframe RB1 Resilient Bars were fixed to one side of the metal frame work at 600mm centres using 13mm British Gypsum Wafer Head Screws. All the bars were fixed with the base flange on the top side with the exception of the uppermost bar which was fixed with the base flange on the bottom side to provide a board fixing at the partition head. Short sections of Gypframe RB1 Resilient Bar were fixed around the perimeter in between the horizontal bars using 13mm British Gypsum Wafer Head Screws, two per section. The Gypframe RB1 Resilient Bars were clad with an inner layer of 12.5mm Gyproc Habito and an outer layer of 15mm Gyproc SoundBloc. The inner layer of boards was screw fixed around the perimeter and within the field of the board at 600mm centres using 25mm British Gypsum High Performance Screws. The outer layer of boards was screw fixed around the perimeter of the board and within the field of the board at 300mm centres using 40mm British Gypsum Drywall Screws. The Gypframe 70S50 ‘C’ Studs were clad with an inner layer of 12.5mm Gyproc Habito and an outer layer of 15mm Gyproc SoundBloc. The inner layer of boards was screw fixed around the perimeter of the board at 600mm centres using 25mm British Gypsum High Performance Screws. The outer layer of boards was screw fixed around the perimeter of the board and within the field of the board at 300mm centres using 40mm British Gypsum Drywall Screws. All vertical joints were staggered between layers. All joints and screw heads were taped and the perimeter was taped and sealed with Gyproc Sealant.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


Figure 1. Horizontal cross section view.


manufactured by British Gypsum, ex Robertsbridge. Surface density: 13.8kg/m2 Average thickness: 14.8mm Board Code: 24 061 17 21:41 24 061 17 21:41 24 061 17 21:41

a) Double layer comprising of 12.5mm Gyproc Habito and 15mm Gyproc SoundBloc.

b) Gypframe 70S50 ‘C’ studs

@ 600mm c/c. c) 25mm Isover APR 1200

insulation. d) Gypframe RB1 Resilient Bar.

a) b) c) d)



East Leake

Loughborough

Leics. LE12 6NP

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ii) Nominally 2400mm (long) x 1200mm (wide) x 12.5mm (thick) Gyproc Habito manufactured by British Gypsum, ex Sherburn.



Density 17.53 kg/m³ The density was calculated using the actual weight and size of the insulation used in the test specimen. Material dimensions were supplied by the customer. Metal Components i) 0.5mm thick Gypframe 70S50 'C' Studs. ii) 0.5mm thick Gypframe 72FEC50 Folded Edge Standard Floor and Ceiling Channels iii) 0.5mm thick Gypframe RB1 Resilient Bar All metal studs and channels are manufactured from galvanised mild steel using the ‘UltraEMBOSSEDTM’ process. All other metal components are manufactured from galvanised mild steel using the ‘UltraSTEEL’ process. All metal components supplied by British Gypsum..



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


Fasteners i) 25mm British Gypsum Drywall Screws. ii) 13mm British Gypsum Wafer Head Screws. iii) 25mm British Gypsum High Performance Screws. iv) 40mm British Gypsum Drywall Screws.

All fasteners supplied by British Gypsum. Miscellaneous Components i) Gyproc Sealant supplied by British Gypsum. ii) Joint tape supplied by The Building Test Centre.

TEST RESULTS



Rw (C; Ctr)

H20102AA

British Gypsum GypWall Quiet SF partition clad with an inner layer of 12.5mm Gyproc Habito and an outer layer of

15mm Gyproc SoundBloc each side with 25mm Isover APR 1200 insulation in the cavity (ultraembossed profiles).

60 (-3;-8) dB

The test was carried to BS EN ISO 10140-2:2010 and rated in accordance with BS EN ISO 717-1: 2013 on the 31st May 2017 at the Building Test Centre on behalf of British Gypsum.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


DISCUSSION The DETAILS OF REQUEST gives a range of constructions where 48mm and 70mm deep C studs

are currently used (GypWall CLASSIC. GypWall QUIET & GypWall QUIET SF) including the full or

partial replacement of some of the current metal framework with UltraEmbossedTM profiles of the

same depth.

This change in metalwork is the only difference between the systems in DETAILS OF REQUEST

and the existing performance claims of partitions in the given range.

Comparison tests have been conducted on a selection of the requested range between partitions

using UltraSTEELTM profiles & UltraEmbossedTM profiles

System Description of comparison construction

Report Numbers & metalwork description

Rw (C;Ctr) Result

CLASSIC

SINGLE FRAME, SINGLE LAYER - LOW PERFORMANCE

BTC 20036A – UltraSTEELTM 34 (-2;-7)

BTC 20078A – UltraEMBOSSEDTM 35 (-2;-7)

SINGLE FRAME, DOUBLE LAYER



SINGLE FRAME, DOUBLE LAYER - HIGH PEFORMANCE



BTC20097A - UltraSTEELTM CHANNEL & UltraEMBOSSEDTM STUD

56 (-2;-8)

QUIET TWIN FRAME, DOUBLE LAYER - HIGH PERFORMANCE

BTC 19984A - UltraSTEELTM 62 (-2;-8)

BTC 20076A - UltraEMBOSSEDTM 62 (-3;-10)

QUIET SF

SINGLE FRAME, DOUBLE LAYER + RB1 (ONE SIDE)- HIGH PERFORMANCE

BTC 19974A - UltraSTEELTM 59 (-3;-9)

BTC 20102 - UltraEMBOSSEDTM 60 (-3;-8)

Table 2. Comparison of UltraSteelTM profiles and UltraEMBOSSEDTM profiles test results

Table 2 shows that tested partitions with UltraEMBOSSEDTM profiles give equivalent Sound

Reduction Index (Rw) values to those achieved by the UltraSTEELTM profiles for partitions of the

same construction.



East Leake

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Throughout these tests in Table 2 there are only two slight differences in the materials used in

direct comparisons.

The board density in BTC 19851A (an UltraSTEELTM partition) uses boards which are 0.1Kg/m2

heavier than those used in BTC 20106A & BTC20097A (partitions with UltraEmbossedTM studs).

This has no effect on the conclusion as heavier boards are only likely to improve the results

The differences in the density of the insulation used in each comparison test are shown in Table 3.

These differences can be considered insignificant when reviewing the comparison of acoustic

performance.

System Description of comparison construction

Report Numbers & metalwork description

Difference in insulation density

CLASSIC

SINGLE FRAME, DOUBLE LAYER - HIGH PEFORMANCE (50mm Isover APR 1200)

BTC 19851A – UltraSTEELTM

0.2 Kg/m3 BTC 20106A – UltraEMBOSSEDTM

BTC20097A - UltraSTEELTM CHANNEL & UltraEMBOSSEDTM STUD

QUIET

TWIN FRAME, DOUBLE LAYER - HIGH PERFORMANCE (25mm Isover APR 1200)

BTC 19984A - UltraSTEELTM

0.23 Kg/m3 BTC 20076A - UltraEMBOSSEDTM

QUIET SF

SINGLE FRAME, DOUBLE LAYER + RB1 (ONE SIDE)- HIGH PERFORMANCE (25mm Isover APR 1200)

BTC 19974A - UltraSTEELTM

0.43 Kg/m3 BTC 20102 - UltraEMBOSSEDTM

Table 3. Changes in insulation density throughout comparison tests For all other partitions in the DETAILS OF REQUEST, the replacement of metalwork with

UltraEmbossedTM profiles will remain the only change for the requested constructions

It is reasonable to assume that for all GypWall CLASSIC, GypWall QUIET & GypWall QUIET SF

systems the remaining partitions would achieve equivalent performance if UltraSTEELTM profiles

are replaced with UltraEMBOSSEDTM.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


CONCLUSION In view of the foregoing evidence, it is our opinion that if the constructions described under DETAILS OF THE REQUEST were subjected to a laboratory sound insulation tests, in accordance with BS EN ISO 10140-2: 2010 and BS EN ISO 717-1:2013 the stated constructions would achieve: Estimated minimum Sound insulation (Rw) would achieve equivalent sound insulation (Rw) performance of the same construction with the UltraSTEELTM metalwork fully or partially replaced with UltraEMBOSSEDTM profiles.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


LIMITATIONS This assessment addresses itself solely to the ability of the partition system described to satisfy the criteria of the laboratory airborne sound insulation test and does not imply any suitability for use with respect to other unspecified criteria. This assessment is issued on the basis of test data and information to hand at the time of issue. If contradictory evidence becomes available to the assessing authority the assessment will be unconditionally withdrawn and the applicant will be notified in writing. Similarly the assessment is invalidated if the assessed construction is subsequently tested since actual test data is deemed to take precedence over an expressed opinion. The opinions and interpretations expressed in this assessment are outside the scope of UKAS accreditation.



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


DECLARATION BY THE APPLICANT We confirm that the component or element of structure, which is the subject of this assessment, has not to our knowledge been subjected to a laboratory airborne and impact sound insulation test to the Standards against which this assessment is being made. We agree to withdraw this assessment from circulation should the component or element of structure be subjected to a laboratory airborne and impact sound insulation test to the Standards against which this assessment is being made. We are not aware of any information that could adversely affect the conclusion of this assessment. If we subsequently become aware of any such information we agree to ask the assessing authority to withdraw the assessment



East Leake

Loughborough

Leics. LE12 6NP

Tel (0115) 945 1564


AUTHORITY FOR USE OF TEST EVIDENCE Test Report Numbers: BTC 19851A, BTC 19974A, BTC 19984A, BTC 20036A, BTC 20038A, BTC 20076A, BTC 20078A, BTC 20080A, BTC 20097A, BTC 20102A and BTC 20106A. We the undersigned agree to the above Test Reports and drawings being used as supporting evidence for the following assessment: Title of assessment

Documents

British Gypsum East Leake 20116LC.pdf · 2017-11-24 · Applicant: British Gypsum BTC 20116LC: Page 1 of 47 The Building Test Centre British Gypsum East Leake Loughborough Leics