SureCav25 is a 25mm deep version of the popular SureCav50 Cavity Spacer Backing Board.
It is a moulded, 100% recycled, polypropylene panel with spacer protrusions, forming a 25mm clear cavity and providing the perfect backing board for the stone, slate, brick and flint outer leaf. It is fully BBA certificated. This cavity protection system ensures clean and moisture free cavities with either timber frame or traditional construction.
Fully certified by the BBA and an accepted construction system by LABC and NHBC
Removes the need for a backing block when building with natural/random stone
Order online now or through all builders' merchants!
Fixing: Wall ties are used, as standard, vertically every 450mm mortar course. Helical ties are most useful where additional support is required between courses and can be fixed through the flat face of the sheet.
For timber frame, it is recommended that sealing washers (supplied by SureCav) are screwed into the pods, with or without additional timber frame ties to hold the system in place prior to the construction of the outer masonry leaf.
Use 5 washers per sheet to ensure stability in high winds before the outer leaf is constructed.