The insulation is installed under the roof in the slope.
Insulation under roof tiles.
The technically correct approach depends on a number of factors.
The quest for greater energy efficiency in buildings has led to increasing interest and need for insulation improvements in hvac equipment more airtight construction new materials and assemblies.
Senior engineer manager at icynene john broniek makes the case for the unvented attic assembly and why insulating the underside of the roof makes sense.
Insulating the pitched roof if your attic is often used or perhaps you plan to convert it in the future you will need to insulate the inner surfaces of the roof.
This will depend on the construction on your roof and if it is a refurbishment whether the roof tiles are going to be removed.
Building regulations for insulating a roof.
You can use batts polystyrene slabs expanded polystyrene or spray foam to insulate your roof or loft space.
The main difference between the two is the location of the insulation.
When installed adjacent to an air cavity sisalation tile roof contributes to the overall total r value of a building.
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.
Additionally insulation serves as a way to enhance sound proofing on the uppermost envelop of your house.
Thereby providing increased comfort to building.
How to insulate a roof.
Whether or not there is an inner roof lining and the total thickness of the roof structure.
Insulating in and around your roof attic space also prevents long term damage from moisture build up or ice damming which results from the warm air trying to escape through the apex of the roof but instead heating up the snow.
The limiting u value the maximise u value which cannot be exceeded required under current building regulations for the roof is 0 20w m.
Protects homes and buildings against radiant heat.
Heat rises and therefore the building regulations requirements for heat loss through roofs are more stringent than those for walls.
The materials used to insulate under the roof include batts of mineral or glass wool insulation held in place by battens of wood attached to and across the rafters alternatively polystyrene.