Insulation Under Roof Tiles

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.

Insulation under roof tiles.

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. Heat rises and therefore the building regulations requirements for heat loss through roofs are more stringent than those for walls. 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. When installed adjacent to an air cavity sisalation tile roof contributes to the overall total r value of a building.

Provides compliance to bal bush fire ember attack requirements in accordance with as3959 by providing a secondary form of ember protection for the roof space roof sarking is mandatory under the building code of australia bca for all tiled residential roofs regardless of roof pitch with a rafter length greater than 6 metres. Tile stabilisation with spray foam. Roof tile insulation is primarily used to protect your roof against the elements and reduce heat loss. The insulation is installed under the roof in the slope.

For a detailed information on insulation costs visit our insulation cost comparison page. How under roof tiles spray foam insulation works. 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. For any further advice please contact us and we will be happy to give you any advice you might need.

This will depend on the construction on your roof and if it is a refurbishment whether the roof tiles are going to be removed. You can use batts polystyrene slabs expanded polystyrene or spray foam to insulate your roof or loft space. Protects homes and buildings against radiant heat. How to insulate a roof.

A strong tear resistant pliable building membrane designed for use as sarking under concrete and terracotta tile roofs. The main decision to make when insulating a pitched roof is if you are going to have a warm roof or a cold roof. The foam is simply sprayed onto the underside of the roof tiles under felt or roof sheeting. The main difference between the two is the location of the insulation.

The limiting u value the maximise u value which cannot be exceeded required under current building regulations for the roof is 0 20w m.