Insulation Under Roof Tiles

If 180mm is to be installed then 100mm board might be introduced between the rafters there has to be a minimum 25mm air gap between the insulation and the underside of the tiles or slates with an 80mm board running across the rafters.

Insulation under roof tiles. You can use batts polystyrene slabs expanded polystyrene or spray foam to insulate your roof or loft space. With a warm roof the usual process is to split the insulation into two layers. Roof tile insulation is primarily used to protect your roof against the elements and reduce heat loss. You should leave the space under the roof tiles free from insulation to give adequate ventilation so that you don t get condensation or water coming through the tiles.

The insulation is installed under the roof in the slope. Under roof tile spray foam insulation acts to add a barrier between the inside of your home and the harsher outside protecting your property and providing significant long term benefits. Insulating your roof and attic space will help retain energy in your home often leading to cost savings and comfort improvement.