P5MCFF2 Separating wall and roof with insulation at rafter level

Build Up

Party Masonry Cavity Wall

Separating Wall and Roof

2 x Leaves Dense Blockwork Party (Separating) Wall

Cavity fully filled with insulation

150mm insulation (λ = 0.044W/mK) between the rafters

50mm (λ =0.022W/mK) below the rafters

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