Wall - External Wall - Cavity Wall (Masonry) - Input Required  help

External Render

NoYes
Outer leaf
Outer leaf thickness mm

Cavity wall insulation

Cavity width

 mm
Inner leaf
Inner leaf thickness mm

Internal Render/Plaster

NoYes

Internal lining system

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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