Insulating Existing Pitched Roof

Arguably the most popular pitched roof solution installing insulation between and under the rafters uses the depth of the structural timbers to best effect.

Insulating existing pitched roof.

On new build or replacement pitched roofs the ideal build up would be insulation fitted over and then between the rafters giving a big boost for airtightness image credit. An efficient room in a roof in a new build property where over rafter insulation is not desirable. If there is only 25mm of insulating material then this is likely to date back to the 1970s as this type of. Then you could simply insulate the pitched roof.

The best way to insulate a pitched roof is to install the very latest insulation technology which comes in the form of spray foam insulation. Using suitable mechanical fixings fix quinn therm ql kraft boards to the underside of the rafters with the long edge. A cold roof is where the insulation is between and below the rafters and the rafters remain cold. Its versatility is the key to its popularity whether being used to achieve.

When insulating pitched roofs with old style felt it is important to maintain a minimum 50mm well ventilated cavity between the felt and the top of the insulation. To form an avcl seal. In this way you prevent the heat from the rooms below escaping to the attic rooms above. If you do have existing roof insulation the first thing to do is to check the depth.

How to install pitched roof insulation beneath and between the rafters 1. How to insulate a pitched roof at rafter level a warm roof is where it is above and between the rafters so the rafters are kept warm. In your scenario the space between the rafters can serve as this ventilated cavity allowing you to attach insulation continuously to the underside of the rafters. Before fitting any insulation to the sides of a pitched roof space any repairs to the roof should be completed once the insulation is in place it will be harder to spot any leaks inside the roof and any leaks will soak the insulation itself.

Install timber noggins where the joints in the insulation are unsupported. At the same time the areas below the roof benefit from increased comfort both during the winter and the summer.