Wall - External Wall - Timber Frame - Input Required  help

External Render

NoYes
Outer leaf
Outer leaf thickness mm

Low 'e' (reflective) breather membrane on sheathing

Stud depth mm

Insulation between studs

Stud centres

You can either select an insulation or enter the
target U-value you want to achieve below...

Internal finish/insulation



or Target U-value  W/m²k

Hover over me

Calculate U‑value

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