Timber stud Traditional stud partitions and walls with single or twin frames

Transcription

1 Traditional stud partitions and walls with single or twin frames 0

2 Traditional stud partitions and walls with single or twin frames db mins The traditional form of plasterboard partition mainly used in residential applications, both in new housing and refurbishment. separating or compartment walls are specified as fire and sound resisting walls in residential units such as flats and apartments to meet the requirements of national Building Regulations. Sector Office / commercial Educational Residential Healthcare Leisure Industrial Timber studs Key facts Can be loadbearing Twin frame and Gypframe RB Resilient Bar constructions to meet sound resisting separating wall requirements Achieves high levels of fire resistance Achieves Part E sound resisting internal partition requirements 0

3 System components Framing s Typically 6, 75 or 89mm depth; 8mm width Gypframe RB Length Resilient Bar 000mm For improved acoustic performance Fixing and finishing products Gyproc Drywall Timber Screws For fixing boards to normal softwoods, super-dried timber and engineered I beams. Gyproc Drywall Screws For fixing boards to Gypframe RB Resilient Bars, and Gypframe RB Resilient Bars to softwood timber framing. Timber battens As required Gyproc Sealant Sealing air paths for optimum sound insulation. Gyproc and Glasroc board products Gyproc WallBoard Thickness.5, 5mm Width 900, 00mm Gyproc SoundBloc Thickness.5, 5mm Width 00mm Gyproc Plank Thickness 9mm Width 600mm Gyproc FireLine Thickness.5, 5mm Width 900, 00mm Glasroc MultiBoard Thickness 6, 0,.5mm Width 00mm Gyproc edge beads Protecting and enhancing board edges. Thistle Board Finish or Thistle Multi-Finish To provide a plaster skim finish. Gyproc jointing materials For seamless jointing. Isowool APR 00 5, 50 and 00mm, for improved acoustic performance. Isowool General Purpose Roll 00mm, for improved acoustic performance. Moisture resistant boards are specified in intermittent wet use areas e.g. shower cubicles. Also available in DUPLEX grades where vapour control is required. 04

4 T F E bgtechnical.enquiries@bpb.com Installation overview Run of partition Timber framing is fixed to the perimeter, abutments, and to frame any openings, using suitable fixings. s are fixed at specified centres. Where Gypframe RB Resilient Bars are required, these are fixed horizontally to the timber studs to one or both sides as specified. Additional framing is installed as required to support heavy fixtures. Boards are screw-fixed to all supports to form the lining. Horizontal board end joints are backed with timber noggings / Gypframe RB Resilient Bars as required. Openings Door openings are formed by fixing full height studs to each side, together with a timber head piece. Door facings are then fixed to the timber ground. Services Services are installed normally after one side is boarded. Timber noggings are fixed to support recessed switch boxes / socket outlets. Table - Gyproc or Glasroc board fixed to timber supports Board type Thickness Width Recommended stud centres mm mm mm Gyproc WallBoard Gyproc FireLine Gyproc Plank Gyproc SoundBloc Glasroc MultiBoard For full installation details, refer to the British Gypsum SiteBook or visit 05

5 Performance ( EN Refer to - Basic principles of system design) Table a 75mm timber stud partitions One layer of board each side of timber studs at 600mm centres. Insulation and board lining as in table. Two layers of board each side of timber studs at 600mm centres. Insulation and board lining as in table. Remedial treatment on one side of existing plasterboard partition (minimum x.5mm plasterboard each side of 75mm x 8mm studs at 600mm centres) using 50mm x 50mm timber battens at 600mm centres, with 50mm Isowool APR 00 between the studs with Gypframe RB Resilient Bar at 600mm centres (fixed horizontally). Insulation and board lining as in table. Detail Board Lining Wall Stud Load ratio Sound insulation R w System type thickness thickness size Without With reference insulation insulation mm mm mm db db New-build 0 minutes fire resistance EN WallBoard x x 8 60% A0600/6 SoundBloc x x 8 60% A0604/7 60 minutes fire resistance EN FireLine x x 8 60% A0608/9 MultiBoard x x 8 60% 8 - G minutes fire resistance EN FireLine x x 8 00% A0600/ MultiBoard x x 8 60% 7 - G06005 Remedial treatment 60 minutes fire resistance EN SoundBloc x x 8 non-loadbearing - 5 A0540 Loadbearing partitions at 60% of the permissible ratio (C4 grade timber maximum). Loadbearing partitions at 00% of the permissible ratio (C4 grade timber maximum). Stud sizes quoted are minimum; larger sizes will enhance performance. 4 5mm Isowool APR 00 insulation NB The fire resistance and sound insulation performances are for imperforate partitions, walls and ceilings incorporating boards with all joints taped and filled, or skimmed according to British Gypsum s recommendations. The quoted performances are achieved only if British Gypsum components are used throughout, and the Company s fixing recommendations are strictly observed. Any variation in the specifications should be checked with British Gypsum. NBS work section K0 - Plasterboard drylinings / partitions / ceilings and G0 s 06

6 T F E bgtechnical.enquiries@bpb.com BS Table b - 75mm, 89mm and 00mm timber stud partitions One layer of board each side of timber studs at 600mm centres. Insulation and board lining as in table. Two layers of board each side of timber studs at 600mm centres. Insulation and board lining as in table. Remedial treatment on one side of existing plasterboard partition (minimum x.5mm plasterboard each side of 75mm x 8mm studs at 600mm centres) using 50mm x 50mm timber battens at 600mm centres, with 50mm Isowool APR 00 between the studs with Gypframe RB Resilient Bar at 600mm centres (fixed horizontally). Insulation and board lining as in table. Detail Board Lining Wall Stud Load ratio Sound insulation R w System type thickness thickness size Without With reference insulation insulation mm mm mm db db New-build 0 minutes fire resistance BS MultiBoard x x 8 non-loadbearing 4 - G0600 WallBoard x x 8 non-loadbearing 5 6 A0600/005 SoundBloc x x 8 non-loadbearing 8 40 A060/06 SoundBloc x x 8 non-loadbearing 40 4 A0604/07 60 minutes fire resistance BS MultiBoard x x 50 non-loadbearing 4 - G0600 FireLine x x 50 55% 8 - A060 WallBoard x x 8 non-loadbearing 8 4 A0600/007 MultiBoard x x 50 00% 8 - G06004 SoundBloc x x 8 non-loadbearing A0605/08 SoundBloc x x 8 non-loadbearing - 5 A minutes fire resistance BS MultiBoard x x 5 80% 7 - G06005/9 Remedial treatment 0 minutes fire resistance BS FireLine x x 50 55% 4 - A0605 Stud sizes quoted are minimum 5mm Isowool APR 00 insulation 50mm Isowool APR 00 insulation NB The fire resistance and sound insulation performances are for imperforate partitions, walls and ceilings incorporating boards with all joints taped and filled, or skimmed according to British Gypsum s recommendations. The quoted performances are achieved only if British Gypsum components are used throughout, and the Company s fixing recommendations are strictly observed. Any variation in the specifications should be checked with British Gypsum. NBS work section K0 - Plasterboard drylinings / partitions / ceilings and G0 s 07

7 Performance ( EN Refer to - Basic principles of system design) Table a - 6mm non-loadbearing timber stud partitions One layer of board each side of timber studs at 600mm centres. Lining as in table. One layer of board each side of timber studs at 600mm centres and 5mm Isowool APR 00 in the cavity. Lining as in table. Detail Board Lining Wall Stud Sound insulation R w System type thickness thickness size reference mm mm mm db 0 minutes fire resistance EN WallBoard x x 8 40 A0600 SoundBloc x x 8 40 A06008 SoundBloc x x 8 40 A06009 Stud sizes quoted are minimum. NB The fire resistance and sound insulation performances are for imperforate partitions, walls and ceilings incorporating boards with all joints taped and filled, or skimmed according to British Gypsum s recommendations. The quoted performances are achieved only if British Gypsum components are used throughout, and the Company s fixing recommendations are strictly observed. Any variation in the specifications should be checked with British Gypsum. NBS work section K0 - Plasterboard drylinings / partitions / ceilings and G0 s 08

8 T F E bgtechnical.enquiries@bpb.com BS Table b - 6mm non-loadbearing timber stud partitions One layer of board each side of timber studs at 600mm centres. Lining as in table. One layer of board each side of timber studs at 600mm centres and 5mm Isowool APR 00 in the cavity. Lining as in table. Detail Board Lining Wall Stud Sound insulation R w System type thickness thickness size reference mm mm mm db 0 minutes fire resistance BS WallBoard x x 8 40 A0600 SoundBloc x x 8 40 A06008 SoundBloc x x 8 40 A06009 Stud sizes quoted are minimum. NB The fire resistance and sound insulation performances are for imperforate partitions, walls and ceilings incorporating boards with all joints taped and filled, or skimmed according to British Gypsum s recommendations. The quoted performances are achieved only if British Gypsum components are used throughout, and the Company s fixing recommendations are strictly observed. Any variation in the specifications should be checked with British Gypsum. NBS work section K0 - Plasterboard drylinings / partitions / ceilings and G0 s 09

9 Performance ( EN Refer to - Basic principles of system design) Table 4a - 75mm and 89mm timber stud compartment / sound resisting walls Two separate timber frames spaced 50mm apart, consisting of 89mm x 8mm timber studs at 600mm centres with noggings. Two layers of board each side. 00mm Isowool APR 00 between the studs on one side. Lining as in table. Two layers of board each side of 75mm x 8mm timber studs at 600mm centres with Gypframe RB Resilient Bars fixed horizontally to one side at 600mm centres. 50mm Isowool APR 00 in the cavity. Lining as in table. Two layers of board each side of 75mm x 8mm timber studs at 600mm centres with Gypframe RB Resilient Bars fixed horizontally to both sides at 600mm centres. 50mm Isowool APR 00 in the cavity. Lining as in table. Detail Board Lining Wall Load ratio Sound insulation R w System type thickness thickness (R w + Ctr) reference mm mm db 60 minutes fire resistance EN SoundBloc x.5 4 Non-loadbearing 56 (48) ) A SoundBloc x.5 57 Non-loadbearing 59 (5) A Plank + FireLine % 6 (5) A0600 Loadbearing partitions at 60% of the permissible ratio (C4 grade timber maximum). NB The fire resistance and sound insulation performances are for imperforate partitions, walls and ceilings incorporating boards with all joints taped and filled, or skimmed according to British Gypsum s recommendations. The quoted performances are achieved only if British Gypsum components are used throughout, and the Company s fixing recommendations are strictly observed. Any variation in the specifications should be checked with British Gypsum. NBS work section K0 - Plasterboard drylinings / partitions / ceilings and G0 s 0

10 T F E bgtechnical.enquiries@bpb.com BS Table 4b - 75mm and 89mm timber stud compartment / sound resisting walls 4 Two separate timber frames spaced 50mm apart, consisting of 89mm x 8mm timber studs at 600mm centres with noggings. Two layers of board each side. 5mm Isowool APR 00 between the studs on one side. Lining as in table. Two separate timber frames spaced 50mm apart, consisting of 89mm x 8mm timber studs at 600mm centres with noggings. Two layers of board each side. 00mm Isowool General Purpose Roll between the studs on one side. Lining as in table. Two layers of board each side of 75mm x 8mm timber studs at 600mm centres with Gypframe RB Resilient Bars fixed horizontally to one side at 600mm centres. 50mm Isowool APR 00 in the cavity. Lining as in table. Two layers of board each side of 75mm x 8mm timber studs at 600mm centres with Gypframe RB Resilient Bars fixed horizontally to both sides at 600mm centres. 50mm Isowool APR 00 in the cavity. Lining as in table. Detail Board Lining Wall Load ratio Sound insulation R w System type thickness thickness (R w + Ctr) reference mm mm db 60 minutes fire resistance BS 4 SoundBloc x.5 0 minutes fire resistance 4 Non-loadbearing 56 (48) A SoundBloc x.5 57 Non-loadbearing 59 (5) A SoundBloc x % 6 (5) A0600 Plank + FireLine % 6 (5) A minutes fire resistance BS 4 4 SoundBloc x 5 5 Non-loadbearing 58 (5) A Plank + SoundBloc Non-loadbearing 59 (5) A0460 SoundBloc x 5 67 Non-loadbearing 60 (5) A NB The fire resistance and sound insulation performances are for imperforate partitions, walls and ceilings incorporating boards with all joints taped and filled, or skimmed according to British Gypsum s recommendations. The quoted performances are achieved only if British Gypsum components are used throughout, and the Company s fixing recommendations are strictly observed. Any variation in the specifications should be checked with British Gypsum. NBS work section K0 - Plasterboard drylinings / partitions / ceilings and G0 s

11 Design Planning - key factors The position of services and heavy fixings should be predetermined and their installation planned into the frame erection stage. If a plastered finish is specified, the thickness of the door or glazing frame must allow for the thickness of the plaster finish. To minimise the risk of cracking at the plasterboard joints, seasoned timber with a moisture content not exceeding that recommended in BS 568: Part : 99 should be used. The contractor should ensure that timber supports are accurately spaced, aligned, and levelled. Fixing to super-dried timber It has been established by test that Gyproc Drywall Timber Screws are the best solution for fixing to standard softwood or super-dried timber (approximately % moisture content). Nail popping Loosening of nails in timber can occur through timber shrinkage, or as a result of fixing boards to misaligned or twisted framing. To reduce the risks, boards should be fixed tight to framing members. To minimise any risk of fixing defects occurring, use Gyproc Drywall Timber Screws. Please contact the British Gypsum Drywall Academy Advice Centre for a copy of Technical Information Sheet TI-008 Fixing specification for Gyproc plasterboard to timber framed ceilings and walls. Alternatively visit Cavity fire barriers Cavity barriers may be required to satisfy the requirements of national Building Regulations. Refer to 7 Cavity fire barriers. Services Penetrations Penetrations of fire resistant constructions for services need careful consideration to ensure that the integrity of the element is not impaired and also that the services themselves do not act as the mechanism of fire spread. Refer to.5 Service installations. Electrical Electrical and other small service runs can be routed within the timber stud cavity. The installation of electrical services should be carried out in accordance with the recommendations of the Institution of Electrical Engineers. Switch boxes and socket outlets can be supported from timber stud noggings. Load ratio Loadbearing partitions listed in Tables a, b and 4a, 4b have been tested at the quoted load ratio. Refer to.. Fire protection, structural fire precautions for an explanation of load ratio in the fire limit state. Fixtures Lightweight fixtures can be made directly to the partitions. Medium weight, or heavy fixtures such as cisterns, radiators or wash basins, can be made directly into the timber supports. Additional studs or timber noggings should be installed as appropriate. Board finishing Refer to 0 Finishing systems and decorative effects. Strength and robustness Timber should be aligned and level, and should meet the requirements of BS 568: Part : 99. The dimensions and assembly of timber supports should be sufficient to allow positive fixing of plasterboard without bounce or undue deflection because of the nailing, screwing, or other applied force. When the above fixing conditions cannot be met, a timber batten should be securely fixed to the side of the timber support to increase the bearing surface. Where boards are fixed at maximum centres in adverse conditions, the standard of lining can be affected. Adverse conditions can generally be described as conditions where high humidity occurs, principally in the cold, damp, autumn / winter period. They also refer to buildings under construction over this period, where both the structure and wet applications such as plastering and screeding are subject to slow drying conditions. Partition junctions At a T junction, a ladder frame should be constructed between studs to provide fixing points for the abutting partition, and to support the lining (see Construction details - ). The horizontal members of the frame should be at 600mm maximum centres. Please refer to - Basic principles of system design for general guidance.

12 T F E bgtechnical.enquiries@bpb.com Construction details Head and base T junction Door jamb 4 Corner junction 5 4 Gyproc plasterboard Timber framing Gyproc Sealant Timber ladder frame (ladder members at 600mm max centres) Door frame Skirting Bulk filled with Gyproc jointing materials