# Intumescent Cavity Barriers ### Issue Image: ![[Pasted image 20250113173140.png]] ## Issue Description: - Intumescent Cavity Barriers are not an NCC requirements but they make a big difference to the performance of a rain screen façade in a fire event. - Intumescent cavity barriers should be used wherever a rain screen façade is installed. - These are a recommendation which has come from the State Governments [Project Remediate Pattern Book](https://www.nsw.gov.au/departments-and-agencies/building-commission/replace-flammable-cladding-through-project-remediate/pattern-book). - Here is a further link explaining how these work: [SIDERISE CAVITY BARRIERS](https://tfire.com.au/documents/Article_Cavity_Barrier_and_their_application_here_in_Australia) ## Actions to Prevent this Issue: - [ ] Architect shall check that Intumescent Cavity Barriers are documented in the design drawings. ## Source