THE ULTIMATE GUIDE TO ROCKWOOL INSULATION

What I have viewed is the insulated flex is listed as duct, as well as foil uninsulated flex is listed as an air connector (if listed in any respect). In possibly case, the product really should be Ul 181 authorized in order to be utilized.flooring/ceiling or roof/ceiling assembly in accordance with ASTME 119 orUL263. Ceiling radiation dampers shal