Kingspan Roof Insulation Between Rafters

The construction build up for this can be seen on our online u value calculator.

Kingspan roof insulation between rafters.

Kingspan insulation is going in the pitched roof between plasterboard and slates with the requisite gap as well a damp proof membrane is there of course. On our u value calculator we don t give an option for putting insulation between the rafters. Our businesses in great britain. As this requires fitting insulation above the rafters the roof covering will have to be removed in order to fit the insulation.

Tapered insulation is compatible with many different roof types and in both new build and refurbishments. 4 december 2015 kingspan insulation uk insulation positioned over rafters in a pitched roof is called a warm pitched roof. The weight of the tiles or slates is taken by the counter battens which are laid on top of the insulation a non structural element. Between and under rafter insulation with kingpsan koolthem k7 pitched roof board between rafters and kingspan kooltherm k118 insulated plasterboard below between and over rafter insulation using the kooltherm k7 board for both you also have the option to put up dwarf walls and insulate these accordingly.

Arguably the most popular pitched roof solution installing insulation between and under the rafters uses the depth of the structural timbers to best effect. Tapered insulation is a great flat roof solution which allows falls to be created with specially shaped insulation rather than requiring screed or timber firrings. Pitched roof insulation our range of premium and high performance pitched roof insulation products are suitable for use in pitched roofs for insulating rafters lofts and attics. Building regulations from part l of the building regulations england and wales or section 6 scotland we recommend that the u value of a pitched roof insulated at rafter level should be 0 18 w m 2 k for a.

Kingspan kooltherm k7 pitched roof board is a premium performance pitched roof insulation that provides a thermal conductivity between 0 020 w mk and 0 023 w mk. For more information on pitched roof insulation please see the kingspan kooltherm k7 pitched roof board brochure. This roof type will require a breathable membrane like kingspan nilvent to be fitted above the insulation. With a fibre free rigid thermoset phenolic core and a low emissivity foil outer face kingspan kooltherm k7 delivers superior thermal performance with easy to handle rigid boards resulting in a efficient installation process.

This is the normal and proper way to do it. Insulate over between or under rafters with simple to cut and install rigid insulation boards. And the plasterboard is the reason i cant see to check it properly. An efficient room in a roof in a new build property where over rafter insulation is not desirable.

An air gap in the rafters is not required as long as there is a channel for water drainage to run down the roof this can be achieved with counter battens that run vertically down the roof.