Rafter Blankets are glass wool blankets with aluminium foil facing on one side. There are 5 cm laps of aluminium foil at the edge. They are used between the rafters of utilized attics, in other words the attics which are being heated and cooled.
The blankets are put between the rafters in the attics. It is placed so that the foiled side faces interior space. Since the width of the blankets is 50 cm it complies with the wood roofs that was built in standard sizes perfectly without any damages between the rafters. Then, by the help of 5 cm laps on both side, it is fixed by punching or nailing to the rafter fascia. Since it already has foil, there is no need to use vapour barrier. No weight should be placed on the material after the application and it should not be walked on.