Partial Fill Cavity Wall Insulation – Design Guidance

Window openings and door edges require tightly fitted boards to prevent thermal bridging. Ballytherm insulation should also be packed at lintels supporting the inner and outer leaf. The insulation will need to be placed on above and below a radon barrier or any cavity trays bridging the wall cavity. See Figure 18 for more information about installation around windows.

Wall Insulation

Introduction

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