Timber joist Timber joists ceilings and separating ...

1 306 Timber joists ceilings and separating / compartment joistCeilings to Timber joist floors are an established form ofceiling construction, which is widely used in both newhousing and refurbishment. separating / compartmentfloors are often specified as fire and sound resisting floorsin residential units such as flats and apartments to meet therequirements of national Building ceilings comprise one or two layers of Gyprocplasterboard screw-fixed or nailed to traditional Timber joistsupports. Isover glass mineral wool insulation can beincluded in the floor cavity to improve acoustic joist ceiling linings are quick and easy to install, andprovide a lining which can be jointed to give a seamlessfinish ready for direct decoration or a traditional gypsumplaster finish.

2 Traditional and established method Versatile Use of Gyproc Drywall Timber Screwsminimises fixing defects Gypframe RB1 Resilient Bar to provideenhanced acoustic performance andeliminate nail-popping Can achieve high performance levels Quick and easy to installKey factsGyproc plasterboard - direct fix with Gyproc Drywall Timber ScrewGypframe RB1 Resilient Bar - indirect fix1212 Sector GuideOfficesRetailEducationIndustrialCus todialResidential -HousingResidential - High Rise CommercialSport & LeisureHealthcareAuditoriaEntertainmentR esidential -Apartmentsbook 6_jan10a:c01 Introduction 15/04/2010 19:44 Page 306307T 00353 1 629 8400 F 00353 1 623 7054 E joists ceilings and separating / compartment and SafetySafety Data Sheets for all Gypsum Industries products areavailable to download from our website.

3 ,or via the Technical Sales board productsGyproc WallBoard 1, 2 Thickness , 15mmWidth 900, 1200mmGyproc FireLine 1 Thickness , 15mmWidth 1200mmGyproc SoundBloc 1 Thickness , 15mmWidth 1200mmGyproc PlankThickness 19mmWidth 600mmGyproc 4x2 s Thickness , 600mmGlasroc F MultiBoardThickness 6, 10, 1200mmGlasroc F FireCase Thickness15mmWidth1200mm1 Moisture resistant boards are specifed in intermittent wet useareas shower areas.

4 Bathrooms and available in DUPLEX grades where vapour control is check is metal productsGypframe RB1 Resilient BarPrime dimension16mmFixing and finishing productsGyproc Drywall Timber Screws or GlasrocFireCase ScrewsFor a positive direct fix of boards to Timber Drywall ScrewsFor fixing ceiling lining boards to GypframeSureFix Bars or Resilient SealantSealing air paths for optimum jointing materialsFor seamless Skimcoat, Gyproc Carlite Finish orGyproc Board FinishTo provide a plaster skim Acoustic RollFor enhanced acoustic performance. Isover Modular RollFor providing acoustic / thermal Sound Deadening floor SlabStone mineral woolFor providing enhanced fire performance insome 6_jan10a:c01 Introduction 16/04/2010 15:18 Page joists ceilings and separating / compartment fix plasterboard ceilingBoards are fixed to ceilings , prior to lining walls andpartitions, with the long edges at right angles to the are located over a joist or Timber noggingsupport.

5 Timber noggings (where required) are fittedbetween joists at room perimeters to support board may also be required to support board edges inthe field of the boards. Boards are preferably fixed totimber supports using Gyproc Drywall Timber Screws, tominimise fixing fix to Gypframe RB1 Resilient BarsThe bars are fixed through the single fixing flange to theunderside of Timber joists (at 90 to them) using GyprocDrywall Screws. The first and last rows of Gypframe RB1 Resilient Bars are located at all wall perimeters. Boards arefixed to the underside of Gypframe Resilient Bars with longboard edges at right angles to the bars. When fixingboards, care must be taken to ensure that the plasterboardfixing screws do not make contact with the full installation details, refer to the Installation Guide at fix plasterboard ceilingBoards are fixed to ceilings , prior to lining walls andpartitions, with the long edges at right angles to the are located over a joist or Timber noggingsupport.

6 Timber noggings (where required) are fittedbetween joists at room perimeters to support board may also be required to support board edges inthe field of the boards. Boards are preferably fixed totimber supports using Gyproc Drywall Timber Screws, tominimise fixing fix to Gypframe RB1 Resilient BarsThe bars are fixed through the single fixing flange to theunderside of Timber joists (at 90 to them) using GyprocDrywall Screws. The first and last rows of Gypframe RB1 Resilient Bars are located at all wall perimeters. Boards arefixed to the underside of Gypframe Resilient Bars with longboard edges at right angles to the bars. When fixingboards, care must be taken to ensure that the plasterboardfixing screws do not make contact with the 6_jan10a:c01 Introduction 15/04/2010 19:45 Page 308309T 00353 1 629 8400 F 00353 1 623 7054 E refer to sectionIntroduction - for general 2 - Dimensions and performance1- Gyproc plasterboard linings132 Timber joists with suitable Timber room perimeter noggings.

7 Noggings also required to supportboard edges, unless otherwise RB1 ResilientBars at 450mm centres tounderside of Isover ModularRoll in the typeFlooring JoistJoistFireEstimated laboratoryPerformanceboardcentreswidthre sistance6sound insulation3substantiationtype2(min.)100 - 3150 HzreportAirborneImpactmmmmminsRwdBLnwdBO ne layer of Gyproc WallBoardd450383053681C014003 One layer of Gyproc WallBoarda6003830 (modified)43879C016001 One layer of Gyproc WallBoardd60038303879C016002 One layer of 15mm Gyproc WallBoardc6003830540-C106029 Two layers of 15mm Gyproc WallBoardd60047604076C016006 Inner layer of Gyproc WallBoard c60038604076C016008and an outer layer of 15mm Gyproc FireLineTwo layers of Gyproc FireLined60038604076C016009 Inner layer of Gyproc Plank and an outerb60050604075C016007layer of Gyproc WallBoardInner layer of Gyproc Plank and an outerd60045605068C206003layer of Gyproc WallBoardInner layer of Gyproc Plank and an outerd60045605467C016030layer of Gyproc SoundBlocTwo layers of 15mm Gyproc FireLined45047904078C0140111 The fire resistance and sound insulation performances are for

8 ceilings incorporating tapered edge boards with all joints taped and filledaccording to Gypsum Industries recommendations. The quoted performances are achieved only if Gypsum Industries components areused throughout, and the Company s fixing recommendations are strictly observed. Any variations in the specification should be checkedwith Gypsum Industries. Where boards are fixed direct to Timber joists , screw-fixing is the preferred alternative to nail-fixing andminimises the risk of fixing defects types:aAny structurally suitable wood board board t & g flooring, not less than 15mm (finished) board t & g flooring, not less than 18mm (finished) board t & g flooring, not less than 21mm (finished) acoustic ratings quoted above are based on 200mm deep joists and a walking surface of min.

9 : 15 : 15. If the floor type d is used the fire resistance increases to a full 30 to support board edges not joints must be reinforced with Gyproc Paper Joint Tape for the quoted fire resistance periods to be achieved. Please refer tosection for full joists ceilings and separating / compartment 6_jan10a:c01 Introduction 15/04/2010 19:45 Page 3 - Dimensions and performance1- non-combustible board linings465 DetailBoard typeFlooringJoistJoistInsulationFirePerf ormanceboardcentreswidthresistance5subst antiationtype2(min.)reportmmmmminsOne layer of 6mm MultiBoardb45038-30G104019 One layer of MultiBoarda60038-30G1060211 The fire resistance performances are for imperforate ceilings with all joints taped and filled in accordance with Gypsum Industries recommendations.

10 The quoted performances are achieved only if Gypsum Industries components are used throughout, and the Company sfixing recommendations are strictly observed. Any variations in the specifications should be checked with Gypsum Industries. Where boardsare fixed direct to Timber joists , screw-fixing is the preferred alternative to nail-fixing and minimising the risks of fixing defects types:a21mm plain edge wood board board t & g flooring, not less than 18mm (finished) board t & g flooring, not less than 19mm (finished) board t & g flooring, not less than 20mm (finished) thickness, or 20mm plain edge boarding with 3mm hardboard or 58mm FireCase Screws at 150mm centres. 38mm x 38mm Timber noggings are also required between joists and at the perimeter tosupport board to support board edges not joints must be reinforced with Gyproc Paper Joint Tape for the quoted fire resistance periods to be achieved.