Sure Cavity Installation
- Roll out Sure Cavity rainscreen drainage plane/drainage mat over the WRB on the backup wall with spunbond fabric facing the installer. Back wrap 4’’ fabric on bottom course to act as bug screen.
- Fasten Sure Cavity rainscreen drainage plane/drainage mat with hammer stapler on wood backup walls or dabs of adhesive on masonry. To prevent wind damage only install as much as can be covered with lath/siding the same day.
- Roll out second and succeeding courses of Sure Cavity rainscreen drainage plane/drainage mat. Overlap only the fabric. Plastic butts directly to top of course beneath it.
- Install veneer – attachment of veneer material will sandwich the Sure Cavity rainscreen drainage mat permanently in place in thin veneer applications.
Note: When Sure Cavity is used in interior brick veneer retrofit applications the fabric separates the corrugated plastic from the closed cell spray foam.