Specifications
garden room roof

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- Selected finished roof
– Fully sealed fiberglass roof finish
– OWL, latest generation waterproofing products
– Torch-on felt - 18mm OSB
- 150x45mm roof rafters
- 100mm thermal and sound insulation
- Vapour barrier
- 50mm rigid insulation
- 12,5mm high density plasterboard
- 2,5mm skim coat finish
- 2 coats of ceiling paint
garden room walls
- Cedar cladding / Pressure treated larch / Pressure treated shiplap
- Vertical 50x25mm battens
- Breather membrane
- 18mm OSB
- 100x45mm stud walls
- 100mm thermal and sound insulation
- Vapour barrier
- 50mm rigid insulation
- 12,5mm high density plasterboard
- 2,5mm skim coat finish
- 2 coats of paint

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garden room foundations and floors

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- Selected finished floor
- 18mm OSB
- 100mm Kingspan rigid floor insulation
- 100x45mm treated joists
- 50x25mm treated battens
- DPC damp-proof course
- Under floor ventilation
- Concrete base subfloor
- Radon barrier protection