Waterproof Sheet Membranes

NAC sheet membranes prepare substrates for tile and stone in NZ conditions. This collection covers sheet waterproofing for internal wet areas, crack isolation to help manage in-plane movement, and sound abatement underlay for quieter floors, with simple seam detailing and efficient installation

Tradies choose sheet membranes when the job calls for speed and reliability. They roll out cleanly, cover tricky junctions, and sit under tile or stone without bulking up the build. On-site, that means fewer callbacks for leaks and a system that keeps building inspectors happy. Whether it is a small ensuite, a commercial shower block, or an exposed balcony taking the weather, these membranes and accessories hold firm across a range of substrates common in New Zealand construction.