The Dor Cav is a ground breaking GRP structural cavity closer that stands as the first structurally rated solution to support insulation and screed over a cavity wall, specifically beneath an external door opening. This innovative product addresses the shortcomings of previous inferior methods, and with larger cavities now being specified in homes, there has never been a more important time to resolve this issue.

This revolutionary product addresses two critical challenges commonly encountered during the installation of perimeter insulation upstands, setting a new standard in construction efficiency and reliability.