Air flow duct insulation can help preserve the running temperature of HVAC units and prevents Strength decline. Discover a lot more with ROCKWOOL alternatives. ROCKWOOL methods for ductwork fire resilience are made and tested according to the newest European security standards2. They can be all labeled as A1 non-combustible – https://spencervrhwk.blogsuperapp.com/37079446/the-ultimate-guide-to-fire-resistant-ductworth-isntallers