Permastop Building Blanket

Australian made Permastop® Building Blanket is suitable for use in residential and commercial metal clad roof applications as well as metal clad walls. It provides excellent thermal and acoustic properties by reducing heat loads entering a building and minimising the internal reverberation and flow of unwanted nuisance noise generated from adjacent buildings/rooms and/or the external environment. Additionally, the Sisalation® reflective foil component of Permastop® Building Blanket aids in minimising the risk of condensation that can form in a metal clad roof.

Where the foil surface of Permastop® Building Blanket is required to maintain a vapour barrier, all joins should be sealed with a suitable Fletcher Insulation tape. Permastop® Building Blanket is typically installed with the reflective surface facing downwards into the air-space below; except in hot and humid tropical regions where the reflective foil is typically installed on the underside of the metal roof sheet. In such conditions, where the building blanket is used in an exposed application, Fletcher Insulation recommends installing the blanket as per standard procedures and running an additional layer of anti-glare foil laminate atop the blanket towards the metal roof sheet. This allows for an enhanced aesthetic finish.