This partial fill cavity board is made from rigid PIR insulation and designed for use in masonry cavity wall construction. Manufactured in a 1200 x 450 x 70mm format, the board features tongue and groove edges to support a close fit between panels.
Commonly installed as part of a partial fill system, it is used to improve thermal performance while maintaining a clear residual cavity within the wall. The board format and jointing method assist in supporting insulation continuity and reducing unwanted gaps during build.
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