- L1 Ground treatment and retention
- L2 Complete construction entities & components
- L3 Structural space & division products
- L4 Access, barrier & circulation products
- L5 Coverings, claddings, linings
- L6 General purpose construction fabric products
- Mortars
- Rigid sections
- Plasterboard, clayboard
- Glass and plastic sheets / boards
- Wood panels / boards
- Plaster backing
- Fire proofing
- Water and damp proofing; cavity drainage
- Airtightness membranes / accessories
- Thermal insulation: Walls: Masonry cavity
- Thermal insulation: Walls: Solid masonry
- Thermal insulation: Walls: Timber & steel frame
- Thermal insulation: Metal clad walls and roofs
- Thermal insulation: Walls: Internal lining
- Thermal insulation: Flat roofs
- Thermal insulation: Pitched roofs
- Thermal insulation: Lofts
- Thermal insulation: Ground floors
- Thermal insulation: Intermediate floors
- Thermal insulation: Services
- Accoustic insulation
- Paints and varnishes
- Wood oils, waxes, stains & preservatives
- Cleaning solvents
- L7 Services
- L8 Fixtures & fittings
Thermal insulation: Pitched roofs
Breathing ceiling
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Black Mountain Insulation
Sheep's wool thermal insulation rolls |
Black Mountain Insulation Ltd. | |
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Isonat
Hemp fibre insulation for ‘breathing construction’ |
Plant Fibre Technology Ltd |
Shallow roof insulation under metal roofing
Timber pitched roofs: insulation board
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Foamglas Readyboard & Wallboard
insulation of pitched roofs - new build or renovation |
Pittsburgh Corning (UK) Ltd |  |
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Isovlas
Flax-based insulation |
Isovlas |
Pitched roof: Timber framed: breathing construction: above rafter insulation/sarking board
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Pavatex-NBT Isolair
Insulating, waterproof, wood fibre sarking board |
Pavatex NBT | |
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Pavatex-NBT Pavaroof Pitched
Pitched roof insulation system |
Pavatex NBT | |
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Pavatex-NBT Pavatherm
Wood fibre insulation board |
Pavatex NBT | |
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Rockwool Rockfall Systems
Thermal insulation slabs for pitched roofs |
Rockwool Ltd | |
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Second Nature Thermafleece
Wool thermal insulation rolls |
Second Nature Uk Limited | |
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Steico Canaflex
Hemp insulation batts |
Steico |