Celotex Roof Insulation Between Rafters

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Celotex roof insulation between rafters.

Saint gobain insulation uk manufacture and supply glass mineral wool slabs and rolls along with rigid polyisocyanurate pir boards that can be considered suitable for a wide range of applications across pitched roofs whether you re looking to insulate at joist level or at rafter level in your pitched roof construction. Rigid polyisocyanurate pir foam insulation boards from celotex are among the most thermally efficient commonly available insulation materials on the market. Celotex polyisocyanurate pir foam insulation boards are easy to cut and handle. Alternatively battens can be secured to the underside of the.

Celotex high performance thermal pir insulation boards for insulating between and over rafters with thicknesses ranging from 12mm to 200mm and lambda as low as 0 022 w mk. Once up at roof level the between rafter boards can be cut accurately to fit the rafter spacings. The saint gobain insulation uk u value calculator gives you instant access to calculating a proposed insulation thickness and product options or giving an indicative calculation on a proposed construction detail. Register to gain access to our comprehensive technical library which contains helpful specification tools including the popular saint gobain insulation uk u value calculator bim objects and.

As for insulating below the joists an insulating laminate insulation bonded to plasterboard such as celotex pl4000 or a separate rigid pir insulation board finished with a separate sheet of plasterboard can be securely fixed to the joists to provide an internal finish to the roof. Being lightweight they do not impose significant additional loads on existing structures. Where headroom and rafter depth is limited celotex insulation may be fitted between and over the rafters. The void created by a pitched roof can be made habitable by insulating along the plane of the roof pitch with celotex rigid pir insulation boards.

2 insulation between and over rafters.