Verified by manufacturer 5 months ago
Rigid PIR insulation with plywood laminate for warm flat roofs on domestic projects.
For warm flat roofs on domestic projects.
Plylok is a high performance rigid polyisocyanurate (PIR) foam board for use in warm flat roofs under traditional bituminous waterproofing and single ply membranes.
It is faced both sides with a multi-layer coated aluminium foil with a layer of 6 mm plywood bonded for additional strength and rigidity.
To ensure adequate drainage the roof should have a minimum finished fall of 1:80. This may mean designing for twice the minimum finished fall to account for building inaccuracies, roof deflection and building settlement.
With increasing levels of insulation it is important to ensure the continuity of insulation at the junction of elements.
- Wind uplift
The wind uplift force exerted on the roof will vary according to geographical location, site location and building height. Reference should be made to BS 6399 and the membrane manufacturer’s recommendations for the number of fixings and the fixing pattern.
Features and benefits:
J41/10 Reinforced bitumen membrane warm deck roof covering
J41/420 Rigid urethane foam insulation
J42/10 Warm deck roof covering
J42/110 Warm deck roof covering
To BS EN 13165.
To EN 13501-1, Euroclass F.
Class 1 (BS 476-7) (insulation only).
Thermal conductivity (maximum)
0.022 W/m·K (insulation only).
Compressive strength at 10% deformation
Exceeds 150 kPa at yield.
Suitable for loads associated with maintenance traffic. Care must be taken to avoid damage to boards by impact or concentrated loads during installation.
Face size (length x width)
2400 x 1200 mm.
± 30 kg/m³.
Faced both sides with a multi-layer coated aluminium foil with a layer of 6mm plywood.
Country of product manufacture