Install baffles on the underside of the roof sheathing net and blow cellulose into the rafter bays cover that with 2 rigid foam.
Insulating a tiled roof.
The main difference between the two is the location of the insulation.
This is usually done by laying quilts or batts of insulation between and over the joists.
The main decision to make when insulating a pitched roof is if you are going to have a warm roof or a cold roof.
It s worth insulating the sloping insides of a pitched roof in order to conserve heat if the space is to be used for anything except simple storage.
Roof tile insulation is primarily used to protect your roof against the elements and reduce heat loss.
It s also within the capability of most diyers although not the most pleasant of tasks.
The water situation made us think that is a bad idea.
If you intend to use the loft for storage then the most cost effective solution is a cold roof where the insulation is laid on top of the ceilings of the rooms below.
Insulating a roof is perhaps the easiest of all the energy saving home improvements.
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.