The roof is insulated if the attic is arranged. In this case, the insulation is attached directly to the rafters. Only insulation is carried out as if in the reverse order. From the beginning from the roof there is a layer of waterproofing, which is attached with a stapler, then a heater, and then a layer of vapor barrier. In case of insulation of the roof, the mounting mount can be performed as a fastening to the rafters using boards, sheathe rafters. Or, if the dwelling is not planned, then you can fix the insulation using a cord, which stretches along the rafters.
