Internal walls and partitions - British Gypsum/media/Files/British-Gypsum/Broch… · Fixing...
Transcript of Internal walls and partitions - British Gypsum/media/Files/British-Gypsum/Broch… · Fixing...
1Stockist-03-02
The fire resistance and sound insulation performances are for imperforate (e.g. sealed and airtight) partitions, walls and ceilings incorporatingboards with all joints taped and filled, or skimmed according to British Gypsum’s recommendations. The quoted performances are achieved onlyif British Gypsum components are used throughout, and the Company’s fixing recommendations are strictly observed. Any variation in thespecifications should be checked with British Gypsum.
Internal walls and partitions
New-build and conversionFor new-build and for new walls in material change of use (conversion), Building Regulations ApprovedDocument E states that the following internal walls and partitions must meet the Rw 40 dBrequirement:
● An internal wall between bedrooms● An internal wall between a bathroom / WC and a habitable room● An internal wall between bedrooms and any other room
Where internal walls include a door, they are exempt from this requirement.
Example systems
Stud: Gypframe 70 S 50 ‘C’ Studs
Centres: 600mm
Maximum height: 3600mm
Wall lining: 12.5mm Gyproc SoundBloc (each side)
Rw 40 dB
30 minutes fire resistance
Stud: Non-loadbearing 63mm x 38mm timber
Centres: 600mm
Maximum height: 3600mm
Wall lining: 15mm Gyproc SoundBloc (each side)
Additional info: Timber noggings may be required for structural support
Rw 40 dB
30 minutes fire resistance
GypWall CLASSIC
Timber stud
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The fire resistance and sound insulation performances are for imperforate (e.g. sealed and airtight) partitions, walls and ceilings incorporatingboards with all joints taped and filled, or skimmed according to British Gypsum’s recommendations. The quoted performances are achieved onlyif British Gypsum components are used throughout, and the Company’s fixing recommendations are strictly observed. Any variation in thespecifications should be checked with British Gypsum.
Wall construction: 100mm medium density concrete blocks (minimum 120kg / m2)
Plasterboardfixing method: DriLyner BASIC using Gyproc Dri-Wall Adhesive
Wall lining: 15mm Gyproc SoundBloc (each side)
Rw 40 dB
30 minutes fire resistance (dependent on base wall performance)
For partitions that do not fall into the above criteria, for example a wall that includes a door, there isno requirement to improve the acoustic insulation, therefore 12.5mm Gyproc WallBoard can be usedto line either side of the partition.
To upgrade the acoustic insulation of existing masonry partitions, Gyproc Soundcoat Plus can be usedto seal air paths before using DriLyner BASIC to ‘dot and dab’ Gyproc SoundBloc to the walls.
DriLyner BASIC
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Internal floors
New-build and conversionFor new-build and new floors in material change of use (conversion), Building Regulations ApprovedDocument E state that internal floors are required to meet Rw 40 dB.
Fixing plasterboard directly into timber joists can result in nail or screw popping. Using Gypframe RB2SureFix Bars in the construction of the ceiling can eliminate this problem, and help maintain theperformance and the aesthetics of the ceiling.
Example systems
Flooring: 22mm tongue and groove chipboard flooring
Joists: 195mm x 38mm solid joists at 600mm centres
Ceiling lining: 12.5mm Gyproc SoundBloc
Rw 42 dB
30 minutes fire resistance
Flooring: 22mm tongue and groove chipboard flooring
Joists: 195mm x 38mm solid joists at 600mm centres
Ceiling lining: 15mm Gyproc WallBoard
Rw 40 dB
30 minutes fire resistance
Solid timber joist (600mm centres)
Solid timber joist (600mm centres)
The fire resistance and sound insulation performances are for imperforate (e.g. sealed and airtight) partitions, walls and ceilings incorporatingboards with all joints taped and filled, or skimmed according to British Gypsum’s recommendations. The quoted performances are achieved onlyif British Gypsum components are used throughout, and the Company’s fixing recommendations are strictly observed. Any variation in thespecifications should be checked with British Gypsum.
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Flooring: 22mm tongue and groove chipboard flooring
Joists: 195mm x 38mm solid joists at 450mm centres
Ceiling fixing: Gypframe RB2 SureFix Bars
Ceiling lining: 12.5mm Gyproc WallBoard
Rw 41 dB
30 minutes fire resistance
Intregral garage conversionWhen building an integral garage, the floor acts as a bridge between a heated and unheated space.Building Regulations require the floor and ceiling to meet 30 minutes fire resistance whilst alsoproviding thermal insulation. The following system provides example guidance.
Flooring: 22mm tongue and groove chipboard flooring
Joists: 195mm x 38mm solid joists at 600mm centres
Insulation: 200mm Isover Space Saver Roll
Ceiling lining: 15mm Gyproc FireLine
30 minutes fire resistance
U value 0.22 W / m2K
Floor for integral garage
Solid timber joist (450mm centres)
The fire resistance and sound insulation performances are for imperforate (e.g. sealed and airtight) partitions, walls and ceilings incorporatingboards with all joints taped and filled, or skimmed according to British Gypsum’s recommendations. The quoted performances are achieved onlyif British Gypsum components are used throughout, and the Company’s fixing recommendations are strictly observed. Any variation in thespecifications should be checked with British Gypsum.
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Separating walls
New-buildWhen building new separating / party walls between dwellings Building Regulations ApprovedDocument E states they are required to meet the 45 dB DnTw + Ctr requirement.
Example systems
Wall construction: Lightweight aggregate cavity block wall (minimum 100mm blocks with a density between 1350 - 1600 kg / m3)
Cavity: Minimum 75mm cavity between blockwork
Wall lining: 13mm Thistle plaster - undercoat and finish coat (each side)
Robust Detail E-WM-2 meets the 45 dB DnTw + Ctr requirement
60 minutes fire resistance (dependent on base wall performance)
Wall construction: Lightweight aggregate cavity block wall (minimum 100mm blocks with a density between 1350 - 1600 kg / m3)
Wall preparation: 6mm Gyproc Soundcoat Plus (each side)
Plasterboard fixing method: DriLyner BASIC using Gyproc Dri-Wall Adhesive
Wall lining: 12.5mm Gyproc WallBoard (each side)
Robust Detail E-WM-4 meets the 45 dB DnTw + Ctr requirement
30 minutes fire resistance (dependent on base wall performance)
Lightweight aggregate blockwork with wet plaster
Lightweight aggregate blockwork with render and plasterboard
For separating wall and floor constructions to be fully effective, care must be taken to correctly detail the junctions between the separating wallor floor and associated elements such as external walls, other separating elements and penetrations or door openings, etc.
The fire resistance and sound insulation performances are for imperforate (e.g. sealed and airtight) partitions, walls and ceilings incorporatingboards with all joints taped and filled, or skimmed according to British Gypsum’s recommendations. The quoted performances are achieved onlyif British Gypsum components are used throughout, and the Company’s fixing recommendations are strictly observed. Any variation in thespecifications should be checked with British Gypsum.
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ConversionFor material change of use / conversion of separating walls, Building Regulations state that they arerequired to meet the 43 dB DnTw + Ctr requirement.
Often upgrading existing separating walls can only be achieved from one side of the wall, therefore toreduce as much air leakage as possible, apply a 6-8mm coat of Gyproc Soundcoat Plus to the masonrywall prior to installation of a drylining system to increase its acoustic potential.
Example systems
Wall construction: Masonry wall such as brickwork (minimum 200kg / m2)
Plasterboard fixing method: DriLyner SI using Gyproc Dri-Wall Adhesive with Gyproc Nailable Plugs
Wall lining: 52mm Gyproc TriLine
Additional info: Wall must be plastered on the other side
43 dB DnTw + Ctr
60 minutes fire resistance (dependent on base wall performance)
This system is more suited to reducing mid-frequency sounds, such as speech.
Wall construction: Masonry wall (such as brickwork)
Cavity: Minimum 35mm cavity (created by GypLyner UNIVERSAL system) with 25mm Isover APR 1200 insulation
Wall lining: 2 x 12.5mm Gyproc SoundBloc
Additional info: Wall must be plastered on the other side
43 dB DnTw + Ctr
60 minutes fire resistance (dependent on base wall performance)
This system will provide better acoustic insulation against hard to tackle low-frequency sounds, such as home cinemasystems.
Masonry wall with DriLyner SI
Masonry wall with GypLyner UNIVERSAL
For separating wall and floor constructions to be fully effective, care must be taken to correctly detail the junctions between the separating wallor floor and associated elements such as external walls, other separating elements and penetrations or door openings, etc.
The fire resistance and sound insulation performances are for imperforate (e.g. sealed and airtight) partitions, walls and ceilings incorporatingboards with all joints taped and filled, or skimmed according to British Gypsum’s recommendations. The quoted performances are achieved onlyif British Gypsum components are used throughout, and the Company’s fixing recommendations are strictly observed. Any variation in thespecifications should be checked with British Gypsum.
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Separating floors
New-buildWhen building new separating floors between dwellings Building Regulations Approved Document Estate they are required to meet the 45 dB DnTw + Ctr requirement.
Example systems
Flooring: 18mm tongue and groove chipboard flooring
Under flooringlayer: 19mm Gyproc Plank
Battens: Resilient composite timber battens at 400mm centres
Floor insulation: 65mm Isover APR 1200
Sub-deck: 15mm OSB
Joists: Minimum 220mm solid timber joists at 400mm centres
Ceiling fixing: Gypframe RB1 Resilient Bar at 400mm centres
Joist cavity fill: 100mm Isover APR 1200
Ceiling lining: 19mm Gyproc Plank and 12.5mm Gyproc WallBoard
Robust Detail E-FT-2 meets the 45 dB DnTw + Ctr requirement
60 minutes fire resistance
Solid timber joist with timber battens
For separating wall and floor constructions to be fully effective, care must be taken to correctly detail the junctions between the separating wallor floor and associated elements such as external walls, other separating elements and penetrations or door openings, etc.
The fire resistance and sound insulation performances are for imperforate (e.g. sealed and airtight) partitions, walls and ceilings incorporatingboards with all joints taped and filled, or skimmed according to British Gypsum’s recommendations. The quoted performances are achieved onlyif British Gypsum components are used throughout, and the Company’s fixing recommendations are strictly observed. Any variation in thespecifications should be checked with British Gypsum.
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Flooring: 22mm tongue and groove chipboard flooring
Under flooringlayer: 19mm Gyproc Plank
Battens: 70mm Gypframe 70 SB 65 Steel Battens at 400mm centres
Floor insulation: 50mm Isover APR 1200
Sub-deck: 15mm OSB
Joists: Minimum 240mm solid timber joists at 400mm centres
Ceiling fixing: Gypframe RB1 Resilient Bar at 450mm centres
Joist cavity fill: 100mm Isover APR 1200
Ceiling lining: 2 x 15mm Gyproc SoundBloc
Additional info: Where a cavity is required between the ceiling and the joists, Gypframe Resilient Bars can be replaced with the CasoLine MF ceiling, to give a 287mm cavity
45 dB DnTw + Ctr
60 minutes fire resistance
Flooring: 22mm tongue and groove chipboard flooring
Under flooringlayer: 19mm Gyproc Plank
Battens: Resilient composite timber battens at 400mm centres
Floor insulation: 50mm Isover APR 1200
Sub-deck: 15mm OSB
Joists: Minimum 240mm engineered timber ‘I’ joists at 400mm centres
Ceiling fixing: Gypframe RB1 Resilient Bar at 400mm centres
Joist cavity fill: 100mm Isover APR 1200
Ceiling lining: 19mm Gyproc Plank and 12.5mm Gyproc SoundBloc
Robust Detail E-FT-1 meets the 45 dB DnTw + Ctr requirement
60 minutes fire resistance
Solid timber joist with Gypframe Steel Battens
Engineered timber ‘I’ joist with timber battens
For separating wall and floor constructions to be fully effective, care must be taken to correctly detail the junctions between the separating wallor floor and associated elements such as external walls, other separating elements and penetrations or door openings, etc.
The fire resistance and sound insulation performances are for imperforate (e.g. sealed and airtight) partitions, walls and ceilings incorporatingboards with all joints taped and filled, or skimmed according to British Gypsum’s recommendations. The quoted performances are achieved onlyif British Gypsum components are used throughout, and the Company’s fixing recommendations are strictly observed. Any variation in thespecifications should be checked with British Gypsum.
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ConversionFor material change of use / conversion of separating walls, Building Regulations Approved Document Estate they are required to meet the 43 dB DnTw + Ctr requirement.
Example systems
Flooring: 21mm tongue and groove chipboard flooring
Under flooringlayer: 19mm Gyproc Plank
Joist channels: Gypframe SIF Floor Channels
Joists: Solid timber joists
Cavity fill: 100mm Isover APR 1200
Ceiling system: CasoLine MF suspended ceiling to give a 277mm cavity
Ceiling lining: 2 x 15mm Gyproc SoundBloc
Floor depth: From top of joist approximately 30mm
Overall floor / ceiling depth: Approximately 340mm
43 dB DnTw + Ctr
60 minutes fire resistance
Solid timber joist with GypFloor SILENT and CasoLine MF ceiling
For separating wall and floor constructions to be fully effective, care must be taken to correctly detail the junctions between the separating wallor floor and associated elements such as external walls, other separating elements and penetrations or door openings, etc.
The fire resistance and sound insulation performances are for imperforate (e.g. sealed and airtight) partitions, walls and ceilings incorporatingboards with all joints taped and filled, or skimmed according to British Gypsum’s recommendations. The quoted performances are achieved onlyif British Gypsum components are used throughout, and the Company’s fixing recommendations are strictly observed. Any variation in thespecifications should be checked with British Gypsum.
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Flooring: 21mm tongue and groove chipboard flooring
Joist channels: Gypframe SIF Floor Channels
Joists: Solid timber joists at 450mm or 600mm centres
Cavity fill: 100mm Isover APR 1200
Ceiling system: Gypframe RB1 Resilient Bar at 450mm centres
Ceiling lining: Inner layer 19mm Gyproc Plank Outer layer 12.5mm Gyproc SoundBloc
Floor depth: Approximately 30mm
Ceiling depth: Approximately 50mm
Additional info: Where a cavity is required between the ceiling and the joists, Gypframe Resilient Bars can be replaced with the CasoLine MF ceiling, to give a 287mm cavity
43 dB DnTw + Ctr
60 minutes fire resistance
Flooring: 21mm tongue and groove chipboard flooring
Under flooringlayer: 19mm Gyproc Plank
Joist channels: Gypframe SIF Floor Channels
Joists: Solid timber joists (minimum 50mm width)
Fire protection: Cavity bridged between joists by 12.5mm Glasroc F MULTIBOARD, resting on 12.5mm Glasroc F MULTIBOARD
strips, screw fixed to each joist (fixed flush)
Cavity fill: 100mm Isover APR 1200
Ceiling lining: Original lath and plaster ceiling
Floor depth: Approximately 30mm
Ceiling depth: None
Test and declare1
60 minutes fire resistance
1 Where the original ceiling needs to be retained, for example an ornate lath and plaster ceiling in an historic building, it may not be possibleto achieve the regulatory standards. It may therefore be permitted to test on site and declare the performance achieved subject to BuildingControl acceptance.
Solid timber joist with GypFloor SILENT
Solid timber joist with GypFloor SILENT and retained ceiling
For separating wall and floor constructions to be fully effective, care must be taken to correctly detail the junctions between the separating wallor floor and associated elements such as external walls, other separating elements and penetrations or door openings, etc.
The fire resistance and sound insulation performances are for imperforate (e.g. sealed and airtight) partitions, walls and ceilings incorporatingboards with all joints taped and filled, or skimmed according to British Gypsum’s recommendations. The quoted performances are achieved onlyif British Gypsum components are used throughout, and the Company’s fixing recommendations are strictly observed. Any variation in thespecifications should be checked with British Gypsum.
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The fire resistance and sound insulation performances are for imperforate (e.g. sealed and airtight) partitions, walls and ceilingsincorporating boards with all joints taped and filled, or skimmed according to British Gypsum’s recommendations. The quotedperformances are achieved only if British Gypsum components are used throughout, and the Company’s fixing recommendations arestrictly observed. Any variation in the specifications should be checked with British Gypsum.
External walls
New-buildBuilding Regulations Approved Document L1A stipulates that compliance is based on the carbonperformance of the whole dwelling and a whole building measure is given through the use of a SAPcalculation.
There are many factors that influence the SAP calculation and the U-value of the external envelope(external walls) is only one part of this. Therefore the following example systems detail different U-values that can be achieved by using alternate Gyproc ThermaLine laminates; this should help givethe flexibility required when designing a new property.
In Scotland, Building Regulations Section 6 stipulates minimum performances and these can varydepending on the type of heating system.
Example systems
External leaf: 103mm brick skin
Cavity: 75mm cavity full-filled with Isover Hi-Cav
Internal leaf: 100mm medium dense block (0.61 W/m2K)
Plasterboard fixing method: DriLyner BASIC with Gyproc Dri-Wall Adhesive or DriLyner TL using Gyproc Dri-Wall Adhesive and Gyproc
Nailable Plugs
Wall lining: Gyproc WallBoard or Gyproc ThermaLine laminate (see below)
U-value Gyproc ThermaLine laminate Wall thickness (mm)
0.17 70mm Gyproc ThermaLine SUPER 358
0.18 60mm Gyproc ThermaLine SUPER 348
0.20 50mm Gyproc ThermaLine SUPER 338
0.25 40mm Gyproc ThermaLine PLUS 328
0.26 35mm Gyproc ThermaLine PLUS 323
0.34 12.5mm Gyproc WallBoard 301
Full-fill cavity wall with medium density blocks
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The fire resistance and sound insulation performances are for imperforate (e.g. sealed and airtight) partitions, walls and ceilingsincorporating boards with all joints taped and filled, or skimmed according to British Gypsum’s recommendations. The quotedperformances are achieved only if British Gypsum components are used throughout, and the Company’s fixing recommendations arestrictly observed. Any variation in the specifications should be checked with British Gypsum.
External leaf: 103mm brick skin
Cavity: 75mm cavity full-filled with Isover Hi-Cav insulation
Internal leaf: 100mm aircrete block (0.11 W/m2K)
Plasterboard fixing method: DriLyner BASIC with Gyproc Dri-Wall Adhesive or DriLyner TL using Gyproc Dri-Wall Adhesive and
Gyproc Nailable Plugs
Wall lining: Gyproc WallBoard or Gyproc ThermaLine laminate (see below)
U-value Gyproc ThermaLine laminate Wall thickness (mm)
0.18 50mm Gyproc ThermaLine SUPER 338
0.22 40mm Gyproc ThermaLine SUPER 328
0.23 35mm Gyproc ThermaLine PLUS 323
0.24 27mm Gyproc ThermaLine PLUS 315
0.26 22mm Gyproc ThermaLine BASIC1 310
0.28 12.5mm Gyproc WallBoard 301
1 Two coats of Gyproc Drywall Sealer are required to provide a vapour control layer.
ConversionBuilding Regulations Approved Document L1B includes extensions, creating new dwellings through achange of use, or alterations to existing dwellings. The thermal element, i.e. the wall, roof or floor thatseparates a heated space from an unheated space, must achieve set U-values and these varydepending on whether the thermal element is in an extension or renovation of an existing element.
The following table highlights the U-value required, and these values can then be selected from thefollowing example systems.
L1B New element Renovations(e.g. extensions)
Wall 0.30 0.35 (0.70)1
Cavity wall 0.30 0.55 (0.70)1
1 If the current element is worse than the U-value quoted in brackets, then they should be upgraded to the adjacent U-value.
In Scotland, Building Regulations Section 6 stipulates minimum performances. For walls, typically0.27 W/m2K is required.
Full-fill cavity wall with aircrete blocks
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The fire resistance and sound insulation performances are for imperforate (e.g. sealed and airtight) partitions, walls and ceilingsincorporating boards with all joints taped and filled, or skimmed according to British Gypsum’s recommendations. The quotedperformances are achieved only if British Gypsum components are used throughout, and the Company’s fixing recommendations arestrictly observed. Any variation in the specifications should be checked with British Gypsum.
Example systems
External leaf: 103mm brick skin
Cavity: Minimum 50mm clear cavity
Internal leaf: 100mm medium dense block (0.61 W/m2K)
Plasterboard fixing method: DriLyner TL using Gyproc Dri-Wall Adhesive and Gyproc Nailable Plugs
Wall lining: Gyproc ThermaLine laminate (see below)
U-value Gyproc ThermaLine laminate Wall thickness (mm)
0.21 90mm Gyproc ThermaLine SUPER 353
0.26 70mm Gyproc ThermaLine SUPER 333
0.30 60mm Gyproc ThermaLine SUPER 323
External leaf: 103mm brick skin
Cavity: Minimum 50mm clear cavity
Internal leaf: 100mm aircrete block (0.11 W/m2K)
Plasterboard fixing method: DriLyner TL using Gyproc Dri-Wall Adhesive and Gyproc Nailable Plugs
Wall lining: Gyproc ThermaLine laminate (see below)
U-value Gyproc ThermaLine laminate Wall thickness (mm)
0.19 90mm Gyproc ThermaLine SUPER 353
0.20 80mm Gyproc ThermaLine SUPER 343
0.23 70mm Gyproc ThermaLine SUPER 333
0.26 60mm Gyproc ThermaLine SUPER 323
0.31 50mm Gyproc ThermaLine SUPER 313
0.54 30mm Gyproc ThermaLine BASIC1 293
1 Two coats of Gyproc Drywall Sealer are required to provide a vapour control layer.
Clear cavity wall with medium density blocks
Clear cavity wall with aircrete blocks
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The fire resistance and sound insulation performances are for imperforate (e.g. sealed and airtight) partitions, walls and ceilingsincorporating boards with all joints taped and filled, or skimmed according to British Gypsum’s recommendations. The quotedperformances are achieved only if British Gypsum components are used throughout, and the Company’s fixing recommendations arestrictly observed. Any variation in the specifications should be checked with British Gypsum.
External leaf: 103mm brick skin
Cavity: Minimum 50mm clear cavity
Internal leaf: 103mm brick
Plasterboard fixing method: DriLyner TL using Gyproc Dri-Wall Adhesive and Gyproc Nailable Plugs
Wall lining: Gyproc ThermaLine laminate (see below)
U-value Gyproc ThermaLine laminate Wall thickness (mm)
0.21 90mm Gyproc ThermaLine SUPER 356
0.23 80mm Gyproc ThermaLine SUPER 346
0.26 70mm Gyproc ThermaLine SUPER 336
0.30 60mm Gyproc ThermaLine SUPER 326
0.37 50mm Gyproc ThermaLine SUPER 316
0.55 40mm Gyproc ThermaLine PLUS 306
Wall construction: 215mm solid brick wall
Plasterboard fixing method: GypLyner UNIVERSAL (or DriLyner RF using Gyproc Sealant, where stated)
Wall lining: Gyproc ThermaLine laminate (see below)
U-value Gyproc ThermaLine laminate Wall thickness (mm)
0.24 70mm Gyproc ThermaLine SUPER and 50mm Isover APR 1200 335
0.25 80mm Gyproc ThermaLine SUPER (no insulation and 25mm cavity) 320
0.27 70mm Gyproc ThermaLine SUPER and 25mm Isover APR 1200 310
0.33 60mm Gyproc ThermaLine SUPER using DriLyner RF (brickwork 291 (minimum)plastered internally)
Brick and brick clear cavity wall
Solid brick wall
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The fire resistance and sound insulation performances are for imperforate (e.g. sealed and airtight) partitions, walls and ceilingsincorporating boards with all joints taped and filled, or skimmed according to British Gypsum’s recommendations. The quotedperformances are achieved only if British Gypsum components are used throughout, and the Company’s fixing recommendations arestrictly observed. Any variation in the specifications should be checked with British Gypsum.
External leaf: 300mm solid stone wall
Plasterboard fixing method: GypLyner UNIVERSAL
Wall lining: Gyproc ThermaLine laminate (see below)
U-value Gyproc ThermaLine laminate Wall thickness (mm)
0.23 90mm Gyproc ThermaLine SUPER 415
0.25 70mm Gyproc ThermaLine SUPER and 50mm Isover APR 1200 420
0.26 80mm Gyproc ThermaLine SUPER 405
0.28 60mm Gyproc ThermaLine SUPER and 50mm Isover APR 1200 410
0.28 70mm Gyproc ThermaLine SUPER and 25mm Isover APR 1200 395
0.32 60mm Gyproc ThermaLine SUPER and 25mm Isover APR 1200 385
Wall construction: 16mm external render, 190mm medium density block (0.61 W/m2K)
Plasterboard fixing method: GypLyner UNIVERSAL (or DriLyner RF using Gyproc Sealant, where stated)
Wall lining: Gyproc ThermaLine laminate (see below)
U-value Gyproc ThermaLine laminate Wall thickness (mm)
0.24 80mm Gyproc ThermaLine SUPER using DriLyner RF (blockwork 302plastered internally)
0.24 70mm Gyproc ThermaLine SUPER and 50mm Isover APR 1200 326
0.26 70mm Gyproc ThermaLine SUPER and 25mm Isover APR 1200 307
0.32 60mm Gyproc ThermaLine SUPER using DriLyner RF (blockwork 282plastered internally)
Window revealsWindow reveals can often be a weak point in the thermal insulation as space isrestricted for fitting Gyproc ThermaLine laminates.
27mm Gyproc ThermaLine PLUS is a thin laminate that can be used around windowreveals and where space is tight. Ensuring all surfaces of external walls arecovered with some insulation will improve the overall insulation of the space.
Solid stone wall
Render and block wall
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The fire resistance and sound insulation performances are for imperforate (e.g. sealed and airtight) partitions, walls and ceilingsincorporating boards with all joints taped and filled, or skimmed according to British Gypsum’s recommendations. The quotedperformances are achieved only if British Gypsum components are used throughout, and the Company’s fixing recommendations arestrictly observed. Any variation in the specifications should be checked with British Gypsum.
Rooms beneath the ground can be difficult to treat as moisture can travel through the ground.Basements and cellars can have a tanking treatment to reduce this occurrence, however this cancause condensation to form on the inside of the room.
The GypLyner IWL (Independent Wall Lining) system builds away from existing walls, fixing to floors,ceilings and adjacent walls to support the framework to reduce the contact with any tanking. GyprocThermaLine PLUS has a high level of thermal insulation as well as a vapour control barrier to reducecondensation forming behind the lining.
Seek adviceSome tanking methods will be downgraded if there is any penetration in the tanking seal.BS5250:2002 contains some limited guidance. However, we would advise you to seek the guidance ofa specialist in the field of Hygrothermal performance and properties for structures below ground todetermine whether there is any risk of interstitial condensation within the construction.
Basements and cellars
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The fire resistance and sound insulation performances are for imperforate (e.g. sealed and airtight) partitions, walls and ceilingsincorporating boards with all joints taped and filled, or skimmed according to British Gypsum’s recommendations. The quotedperformances are achieved only if British Gypsum components are used throughout, and the Company’s fixing recommendations arestrictly observed. Any variation in the specifications should be checked with British Gypsum.
Room-in-the-roof and loft spaces
New-buildBuilding Regulations Approved Document L stipulates that the external fabric (e.g. gable walls) meet minimumrequirements to comply with thermal performances. Example constructions for wall and roof linings are shownbelow.
In Scotland, Building Regulations Section 6 stipulates minimum performances which can vary depending on thetype of heating system, typically 0.27 W/m2K for walls, 0.20 W/m2K for pitched roofs with insulation between therafters (room-in-the-roof) and 0.16 W/m2K for pitched roofs with insulation between ceiling joists (loft spaces).
Example systems
Studs: Timber studs at 600mm centres
Insulation: Installed between the studs (see below)
Timber fraction: 15%
Wall lining: Gyproc ThermaLine laminate or plasterboard (see below)
U-value Insulation Gyproc ThermaLine laminate / plasterboard
0.24 140mm Isover Frame Batt 35 40mm Gyproc ThermaLine PLUS
0.25 140mm Isover Frame Batt 34 40mm Gyproc ThermaLine BASIC1
0.30 100mm Isover Frame Batt 35 35mm Gyproc ThermaLine PLUS
0.30 140mm Isover Frame Batt 34 12.5mm Gyproc WallBoard DUPLEX
1 Two coats of Gyproc Drywall Sealer are required to provide a vapour control layer.
Roof construction: Tiled or slated roof on tiling battens on breather membrane. Softwood rafters at 600mm centres
Insulation: Installed between the rafters (see below)
Timber fraction: 8.3%
Roof lining: Gyproc ThermaLine laminate (see below)
U-value Insulation Gyproc ThermaLine laminate
0.13 200mm (4 x) 50mm Isover Frame Batt 32 70mm Gyproc ThermaLine SUPER
0.13 200mm (2 x) 100mm Isover Frame Batt 35 70mm Gyproc ThermaLine SUPER
0.16 140mm Isover Frame Batt 34 70mm Gyproc ThermaLine SUPER
0.19 100mm Isover Frame Batt 35 70mm Gyproc ThermaLine SUPER
Wall linings
Roof lining
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The fire resistance and sound insulation performances are for imperforate (e.g. sealed and airtight) partitions, walls and ceilingsincorporating boards with all joints taped and filled, or skimmed according to British Gypsum’s recommendations. The quotedperformances are achieved only if British Gypsum components are used throughout, and the Company’s fixing recommendations arestrictly observed. Any variation in the specifications should be checked with British Gypsum.
ConversionWhether insulating a loft space to meet Building Regulations Approved Document L or transformingit to a liveable room-in-the-roof, the following U-value requirements should be met.
L1B Extensions RenovationsWall 0.30 0.35 (0.70)1
Pitched roof with insulation between the rafters (room-in-the-roof) 0.20 0.20 (0.35)1
Pitched roof with insulation between ceiling joists (loft space) 0.16 0.16 (0.35)1
1 If the current element is worse than the U-value quoted in brackets, then they should be upgraded to the adjacent U-value.Cavity walls can be upgraded to just 0.55.
In Scotland, Building Regulations Section 6 stipulates minimum performances typically 0.27 W/m2Kfor walls, 0.20 W/m2K for pitched roofs with insulation between the rafters (room-in-the-roof) and0.16 W/m2K for pitched roofs with insulation between ceiling joists (loft spaces).
Details on suitable external wall linings can be found earlier in this guide.
Care should be taken to ensure any work is carried out in accordance with local planning rules,specifically where there are changes to the ridge or shape of the roof and the type of area the dwellingis located.
Example systems
Insulation between rafters: 170mm Isover Space Saver Roll
Timber fraction: 6.3%
Ceiling lining: Gyproc ThermaLine laminate (see below)
U-value Gyproc ThermaLine laminate
0.16 70mm Gyproc ThermaLine SUPER
Insulation at the ceiling (loft space)
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The fire resistance and sound insulation performances are for imperforate (e.g. sealed and airtight) partitions, walls and ceilingsincorporating boards with all joints taped and filled, or skimmed according to British Gypsum’s recommendations. The quotedperformances are achieved only if British Gypsum components are used throughout, and the Company’s fixing recommendations arestrictly observed. Any variation in the specifications should be checked with British Gypsum.
Studs: Timber studs at 600mm centres
Insulation: Installed between the studs (see below)
Timber fraction: 15%
Wall lining: Gyproc ThermaLine laminate or plasterboard (see below)
U-value Insulation Gyproc ThermaLine laminate / plasterboard
0.24 No insulation 90mm Gyproc ThermaLine SUPER
0.24 140mm Isover Frame Batt 35 40mm Gyproc ThermaLine PLUS
0.27 No insulation 80mm Gyproc ThermaLine SUPER
0.27 140mm Isover Frame Batt 35 27mm Gyproc ThermaLine PLUS
0.30 100mm Isover Frame Batt 35 35mm Gyproc ThermaLine PLUS
0.30 140mm Isover Frame Batt 34 12.5mm Gyproc WallBoard DUPLEX
Roof construction: Tiled or slated roof on tiling battens on sarking felt with a 50mm ventilated cavity.Softwood rafters at 600mm centres (see below)
Insulation: Installed between the rafters (see below)
Timber fraction: 8.3%
Roof lining: Gyproc ThermaLine laminate or plasterboard (see below)
U-value Insulation Gyproc ThermaLine laminate
0.19 150mm rafters with 100mm Isover Frame Batt 35 70mm Gyproc ThermaLine SUPER
0.20 125mm rafters with 75mm phenolic foam 60mm Gyproc ThermaLine SUPER
0.20 150mm rafters with 100mm phenolic foam 50mm Gyproc ThermaLine SUPER
Wall linings
Roof lining
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