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

Modern homes are more airtight and more heavily insulated than ever — which means moisture and thermal bridging in the wall cavity are now the builder's problem to solve. Cavi-Break makes that straightforward. Cavi-Break is a two-in-one cavity batten and thermal break. Fixed vertically between your frame and cladding, it holds a consistent cavity so the wall can drain and breathe — cutting condensation, mould and rot risk — while breaking the thermal bridge through timber or steel framing to lift your wall's R-value. Made from high-compression XPS, it keeps cladding lines dead straight — no waves, no costly callbacks — and won't rot, swell, absorb moisture or attract termites. 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. Available in 10, 12, 20 and 35mm to match your cavity depth and R-value target, and backed by ATI's 10-year product warranty. Build better, from the inside out.