Thoroughly encapsulated in aluminium foil for cleaner installation and resistance to grease or moisture ingress in provider ROCKWOOL ROXUL Protected® is usually a stone wool insulation Utilized in fire-halting applications. It can be designed to fill perimeter gaps concerning concrete floor slabs and exterior wall devices, between firewalls and ceiling https://fireratedinsulationforduc23445.answerblogs.com/37191396/the-best-side-of-fire-rated-ductworth