What are the disposal instructions for the hotmelt PermaTEC Anti-Root system? I am compiling an O&M and require this information. You can find the disposal instructions for the Hot Melt PermaTEC Anti-Root System within the Permatec Anti-Root MSDS document on the product page here >. Can IKO Enertherm cavity wall PIR insulation be used as full fill insulation with no residual cavity in masonry external wall Can you provide a ‘U’ value calculation for a floor to be insulated with IKO Enertherm ALU (PIR) 50mm thick where the P/A ration of the buildings to be insulated is 0.25. Calculation to be in a form acceptable for submission to Building Regulations.