GypWall AUDIO The ultimate sound insulating wall system

Transcription

1 The ultimate sound insulating wall system Cineworld, Ilford 8

2 The ultimate sound insulating wall system is a non-loadbearing, twin frame high performance wall system that provides exceptionally high levels of sound insulation. It is used to separate multiple use facilities such as lecture theatres, music rooms, multi-screen cinemas, exhibition and conference centres, and leisure centres db mins Sector Office / commercial Educational Residential Healthcare Leisure Industrial Gypframe Acoustic Brace Gypframe C Stud Gypframe 99 FC 0 Fixing Channel Gypframe C Stud Key facts Exceptionally high levels of sound insulation Can exceed sound insulation requirements for cinemas equipped with high performance sound systems Lightweight, compared to masonry alternatives Up to 0 minutes fire resistance Can provide fire protection to structural steel within the wall cavity Can be built to a maximum height of metres 9

3 L SPECSURE S Y S T E M System components Gypframe metal products 9 S 0 C Stud Length 600, 00mm Standard Floor & Ceiling Channel 9 C 70 Extra Deep Flange Floor & Ceiling Channel 9 EDC 70 All channels are available in 600mm only. 99 FC 0 Fixing Channel Length 00mm GFS Fixing Strap Length 00mm or GFT Fixing T Length 00mm GA Internal Fixing Angle Length 600mm Fixing and finishing products Gyproc Jack-Point Screws For fixing boards to stud framing 0.8mm thick or greater and I Studs greater than 0.mm thick. Gyproc Wafer Head Jack-Point Screws For metal-to-metal fixing 0.8mm thick or greater and I studs greater than 0.mm thick. Gyproc Sealant For sealing airpaths to achieve optimum sound insulation. Gyproc jointing materials For seamless jointing. Gyproc edge beads To protect and enhance board edges. Gyproc Control Joint To accommodate structural movement. GA6 Splayed Angle Length 00, 600mm Gyproc FireStrip For fire-stopping deflection heads. Acoustic Brace Length GAB 8mm GAB 0mm Bespoke lengths available to special order. Thistle Board Finish or Thistle Multi-Finish To provide a plaster skim finish. Isowool General Purpose Roll To provide sound insulation. Gyproc board products Gyproc WallBoard Thickness Width mm 00mm Stone 6kg/m slab. To provide sound insulation. Gyproc SoundBloc Thickness Width., mm 00mm Gyproc Plank Thickness Width 9mm 600mm Gyproc FireLine Thickness Width.mm 00mm Gyproc DuraLine Thickness Width mm 00mm I F E T I M E W A R R A N T Y Always use genuine branded British Gypsum components to qualify for SpecSure lifetime warranty 60

4 T F E bgtechnical.enquiries@bpb.com Installation overview Gypframe Floor & Ceiling Channels are fixed at the head and base to achieve the specified wall thickness. Gypframe C Studs are fitted vertically to a friction-fit within the channel sections and to abutments, to form the framework. This allows for adjustment during boarding. Studs should be fitted to face the same way and extended by splicing to the specified height. Additional framing is installed as required to support heavy fixtures. The specified is installed into the cavity-formed frameworks. The frames are braced using Gypframe Acoustic Braces or solid braces formed from Gypframe 99 FC 0 Fixing Channel at specified centres. Gyproc Sealant is applied to the frame perimeters to seal airpaths. Boards are screw-fixed to framing members to form the lining. Horizontal board-end joints in face layer boards should be backed with Gypframe GFS Fixing Strap. Services Electrical and other services are normally installed after one side is boarded. Horizontal runs are routed through cut-outs in the studs. A high performance service box detail must be used. For full installation details, refer to the British Gypsum SiteBook or visit 6

5 Performance ( EN Refer to - Basic principles of system design) Table a two and three layer board linings Two frames of 9mm Gypframe C Studs spaced at 600mm centres with Gypframe 99 FC 0 Fixing Channel at 600mm centres or Gypframe Acoustic Braces at 00mm centres. Linings and insulation as in table. 6 7 SPECSURE L Detail Board Lining Approx. Nominal Recommended Isowool Sound Duty System type thickness weight wall maximum wall General insulation rating reference thickness heights Purpose R w Fixing channel Acoustic Roll braces braces L/0 L/ L/0 L/ mm kg/m mm mm mm mm mm mm db I F E T 60 minutes fire resistance EN I M E W A R R A N T Y SoundBloc x Severe A600 SoundBloc x Severe A600 Plank Severe A600 SoundBloc Plank Severe A6006 FireLine 0 minutes fire resistance EN SoundBloc x Severe A S Y S T E M SoundBloc x x Severe A60 SoundBloc x x Severe A607 x 00 stone SoundBloc x x Severe A608 x 00 stone SoundBloc x x Severe A609 x 00 stone For imporved durability and impact resistance, the outer layer of Gyproc FireLine or Gyproc SoundBloc can be replaced with a layer of mm Gyproc DuraLine. For heights over 00mm, Gypframe 9 EDC 70 Extra Deep Flange Floor & Ceiling Channel should be used at the head and base. NB The fire resistance and sound insulation performances are for imperforate partitions, walls and ceilings incorporating boards with joints taped and filled, or skimmed according to British Gypsum s recommendations. The quoted performances are achieved only if British Gypsum components ared used throughout, and the Company s fxing recommendations are strictly observed. Any variation in the specifications should be checked with British Gypsum. NBS work section K0 - Plasterboard drylinings / partitions / ceilings 6

6 T F E bgtechnical.enquiries@bpb.com BS Table b two and three layer board linings Two frames of 9mm Gypframe C Studs spaced at 600mm centres with Gypframe 99 FC 0 Fixing Channel at 600mm centres or Gypframe Acoustic Braces at 00mm centres. Linings and insulation as in table. 6 7 SPECSURE L Detail Board Lining Approx. Nominal Recommended Isowool Sound Duty System type thickness weight wall maximum wall General insulation rating reference thickness heights Purpose R w Fixing channel Acoustic Roll braces braces L/0 L/ L/0 L/ mm kg/m mm mm mm mm mm mm db I F E T 60 minutes fire resistance BS I M E S Y S T E M W A R R A N T Y SoundBloc x Severe A minutes fire resistance BS WallBoard x Severe A60 SoundBloc x Severe A600 Plank Severe A600 SoundBloc 0 minutes fire resistance BS Plank Severe A6006 FireLine 6 7 SoundBloc x Severe A606 SoundBloc x x Severe A60 SoundBloc x x Severe A607 x 00 stone SoundBloc x x Severe A608 x 00 stone SoundBloc x x Severe A609 x 00 stone For imporved durability and impact resistance, the outer layer of Gyproc FireLine or Gyproc SoundBloc can be replaced with a layer of mm Gyproc DuraLine. For heights over 00mm, Gypframe 9 EDC 70 Extra Deep Flange Floor & Ceiling Channel should be used at the head and base. NB The fire resistance and sound insulation performances are for imperforate partitions, walls and ceilings incorporating boards with joints taped and filled, or skimmed according to British Gypsum s recommendations. The quoted performances are achieved only if British Gypsum components ared used throughout, and the Company s fxing recommendations are strictly observed. Any variation in the specifications should be checked with British Gypsum. NBS work section K0 - Plasterboard drylinings / partitions / ceilings 6

7 Performance ( EN BS Refer to - Basic principles of system design) Table - Fire protection to structural steel Board Lining Fire Section factor type thickness resistance A / V (Hp/A) mm mins m - SoundBloc x. 0 Up to 00 SoundBloc x 60 Up to 00 Plank + SoundBloc Up to 00 Plank + FireLine Up to 00 SoundBloc x 0 Up to 00 For improved durability and impact resistance, the outer layer of Gyproc FireLine or Gyproc SoundBloc can be replaced with a layer of mm Gyproc DuraLine. Based on sided profile exposure, with no vertical joints aligning with the column and boards not fixed to the column to maintain air space (0mm for BS or 0mm for EN). Table - Acoustic performance of GypWall AUDIO at low frequencies Detail Board Lining Isowool General Sound insulation (R) System type thickness Purpose Roll 6Hz Hz 0Hz R w reference mm mm db db db db 6 7 SoundBloc x A600 WallBoard x A60 SoundBloc x A600 Plank + SoundBloc A600 Plank + FireLine A6006 SoundBloc x A606 SoundBloc x x A60 SoundBloc x x 00 + x 00mm A607 stone SoundBloc x x 00 + x 00mm A608 stone SoundBloc x x 00 + x 00mm A609 stone For improved durability and impact resistance, the outer layer of Gyproc FireLine or Gyproc SoundBloc can be replaced with a layer of mm Gyproc DuraLine. For heights over 00mm, Gypframe 9 EDC 70 Extra Deep Flange Floor & Ceiling Channel should be used at the head and base. NBS work section K0 - Plasterboard drylinings / partitions / ceilings 6

8 T F E bgtechnical.enquiries@bpb.com Design Planning - key factors The position of services and heavy features should be pre-determined and their installation planned into the frame erection stage. Wind loading GypWall partitions are non-loadbearing but can accept a degree of wind loading, for example when used in buildings with large or multiple external doors. Refer to. Robustness. Cross bracing Laboratory tests were carried out on walls without bracing. The results, however, are a realistic representation of site conditions in which Gypframe 99 FC 0 Fixing Channel cross-braces are fitted at the recommended 600mm maximum centres, provided that appropriate measures are taken on site to eliminate flanking sound transmission. Test evidence is provided by British Gypsum report ATR 99, where a site test on a large multi-screen cinema wall achieved comparable performance to the equivalent specification tested in the laboratory without bracing. Some acoustic designers prefer the option of a resilient acoustic brace. The Gypframe Acoustic Brace has been shown by test not to downgrade acoustic performance in laboratory conditions. As a result of the mechanics of this brace, however, fixing centres should be reduced from 600mm to 00mm, staggered by 00mm. Maximum recommended wall heights will be reduced - refer to Table a and b. Cavity fire barriers Stone cut neatly to fit across the cavity forms a suitable closure. Refer to 7 Cavity fire barriers. Services Penetrations Penetrations of fire-resistant or sound-insulating constructions for services need careful consideration to ensure that the performance of the element is not downgraded and also that the services themselves do not act as the mechanism of fire spread or sound transmission. Refer to. Service installations. Fixing floor and ceiling channels Gypframe Floor & Ceiling Channels must be securely fixed with two lines of staggered fixings, each line at 600mm centres and each fixing mm in from the flange. If the floor is uneven a 8mm thick timber sole plate equal to the width of the channel should be used. If the concrete or screeded floor is new, consideration should be given to the installation of a damp proof membrane between the floor surface and the channel or sole plate. Door openings Any openings will require careful detailing if the acoustic performance is to be maintained. Specialist heavy acoustic doorsets may require additional support. Contact the British Gypsum Drywall Academy Advice Centre for guidance. Framing surround for openings Where services such as horizontal ducts, fire dampers and access panels are required to penetrate the wall, their position should be predetermined in order that a framed opening can be provided. Refer to Basic principles of system design. Control joints Control joints should coincide with movements in the structure. It is recommended that they coincide with movement joints within the surrounding structure. Deflection heads Partition head deflection designs may be necessary to accommodate deflections in the supporting floor. Deflection heads may also be required to the underside of roof structures subjected to positive and negative pressures. Refer to Basic principles of system design. Fixtures Lightweight fixtures can be made directly to the partition linings. Medium weight fixtures can be made to Gypframe 99 FC 0 Fixing Channel. Heavy fixtures should be made to the metal studs or independent framing installed before boarding. Refer to.. Robustness, Fixings into drywall systems. Board finishing Refer to 0 Finishing systems and decorative effects. Independent support When designing for the installation of services, such as fire dampers and associated ductwork, through a GypWall partition, consideration should be given to the size and weight of the damper - this will determine whether it can be supported directly from the partition or needs to be independently supported from the structure. Refer to. Service installations. Electrical The installation of electrical services should be carried out in accordance with the recommendations of the Institution of Electrical Engineers. The cut-outs in the studs can be used for routing electrical and other small services. A high performance service box detail must be used. Please refer to - Basic principles of system design for general guidance. 6

9 Construction details Splicing and acoustic bracing Splicing and solid bracing 6 Gypframe C Stud Splice - 600mm overlap with three Gyproc Wafer Head Jack-Point Screws into each flange Gypframe Acoustic Brace 6 Isowool General Purpose Roll and stone where specified Gyproc plasterboard Brace formed from Gypframe 99 FC 0 Fixing Channel 66

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