E2TFHY01 Window Head

Psi Value = 0.053 W/mK 

Build Up

Brick Outer Leaf (λ = 0.77W/m2K)
50mm Air Cavity, vented
BOOST’R HYBRID (R = 1.35 m2K/W)
OSB
HYBRIS between 140mm Studs (λ = 0.033 W/m2K)
Low-e Air Cavity
Vapour Control Layer
Service Void provided by Battens
Plasterboard