Roof Insulation For Listed Buildings

Insulating the underside.

Roof insulation for listed buildings.

It is used underneath floors as insulation where again it is prone to condensation. Older buildings often have dormer windows which come in a variety of shapes sizes and materials. Grade i and grade ii listed buildings can be more difficult to alter and upgrade but luckily that only covers approximately 8 of homes in the uk today. Foam sheets covered with foil are a magnet for condensation and trap moist air into a building.

Insulate your property 1 insulate your property. This construction approach was first used in the 1970s and it has been implemented much more widely since it was first included in the international code council s icc model building code in 2007 irc section 806 4. If the main roof is being insulated then it is advisable to consider insulating any dormer window which is a part of that roof. Examples of some of the materials that could be used to improve the weather tightness and insulation of the roof of an old building without jeopardising the traditional breathing performance include vapour permeable roofing felt and sheep s wool insulation.

Most unvented attics incorporate spray polyurethane foam spf on the underside of the roof deck and attic walls. By including a layer of stone wool insulation within your roof system your building will benefit in more ways than one. Grade ii is a step below grade i meaning these are important buildings of more than special interest but not as highly valued as your grade i. Building regulations approval is not required for routine maintenance and repair and listed buildings are exempt from the need to meet energy efficiency requirements where compliance would unacceptably alter their character and appearance.

The easiest way to increase the value of your roof assembly is to insulate the insulation with a hybrid roof system. The optimal solution is to externally insulate solid walls with breathable pavatex wood fibre thermal insulation boards because the complete building envelope will be insulated therefore reducing cold bridging through the junctions. You can insulate a traditional building in a various ways to reduce heat loss and save energy. Listed building insulation regulations ease off a little when it comes to grade ii and ii listed properties.

I ve seen roof areas with water literally running down the foam boards. About 25 of heat is lost through a typical roof. Most listed homes in the uk are only grade ii listed which means there are things that their home owners can do to improve insulation and heat loss problems. Dont use it for anything in an old building that needs to breathe.