ATI 1200 x 45 x 12mm Cavi-Break Strip Thermal Break - 125 Pack

NCC 2025 now calls for a drained and ventilated cavity on timber and steel framed builds in Climate Zones 6, 7 and 8. For a lot of builders that's new territory — and the liability sits with you for years. Cavi-Vent X12 is built to get you there without reinventing your wall. Cavi-Vent X12 is the working heart of the cavity. Fixed horizontally over Cavi-Break X12, its engineered castellated profile opens up the drainage and ventilation pathways behind your cladding — so moisture escapes and air moves, cutting condensation, mould and rot risk. At the same time it breaks the thermal bridge through the frame, adding R0.32 at 12mm to your wall. Made from high-compression XPS, it won't rot, swell, absorb moisture or attract termites, and it holds cladding lines straight for a clean finish. The self-adhesive backing means peel, stick, done — no fixings, no power tools, no drill damage to frames. It suits fibre cement, timber, metal and most lightweight cladding on residential and light commercial builds. Paired with Cavi-Break X12, it forms one complete 12mm drained and ventilated cavity system — the same on timber or steel — backed by ATI's 10-year product warranty. Build better, from the inside out.