Polystyrene Insulation Roof Rafters

Pack of 3 total cover is 0 74m.

Polystyrene insulation roof rafters.

Squeeze to fit for easy installation between rafters or floor joists. Reduces heat loss and energy bills. The rafters are joined together by a horizontal ridge board at the top and tied together by ceiling joists at the bottom. You can use batts polystyrene slabs expanded polystyrene or spray foam to insulate your roof or loft space.

This means insulating between or below the sloping beams that form the construction and support a sloping roof. This is the same stuff your disposable coffee cup and is made out of and it s used to protect fragile items in their packaging. 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. Made from flame retardant material.

Adding another layer of insulation either above or below the rafters gives another key advantage it reduces the effect of cold bridging through the timber rafters. Both install in the same manner but the foil faced product offers slightly more r value. Celotex polyisocyanurate pir foam insulation boards are easy to cut and handle. Its versatility is the key to its popularity whether being used to achieve.

Rigid foam boards used in ceiling insulation are often made of either cellulose fiber fiberglass polystyrene or polyurethanes. Being lightweight they do not impose significant additional loads on existing structures. This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses. Fits rafter or joist spacings of between 320mm and 395mm.

Most local building codes require that rigid foam boards made from polyurethane or polystyrene be covered with a 15 minute fire rated thermal covering if they are used on the inside of the house. Uncompressed size 610 x 402 x 60mm. It provides an r value of 4 per inch of thickness and is the cheapest type of foam board insulation. Full installation instructions included.

Rigid foam insulation is available in two main types. Obviously heat will be lost through the rafters at a faster rate than it is lost through the insulation. Insulating the rafter space will give you a warm loft. The insulation is installed under the roof in the slope.

Arguably the most popular pitched roof solution installing insulation between and under the rafters uses the depth of the structural timbers to best effect. An efficient room in a roof in a new build property where over rafter insulation is not desirable.