Installing a mansard roof requires extensive care from water as it is made from wood or else it will spoil the entire insulation. Here are a few steps to get the best installation. As it extends down vertically so holes are drilled in the walls but a distance is maintained to avoid confusion. With the help of nozzle the insulation is pushed from these holes. Perform the same operation with rest of the holes and when it gets tough your installation is almost done.
Holes have to be repaired with the help of filers to make the surface smooth. In some cases vapour barrier is also used so that the installation is fixed in its position and it does not come out. If any part of the sheet is hanging down then put it inside the roof just to give a tidy appearance from outside. These instructions will prove beneficial in installing and maintenance.