Pitched Roof Insulation Over Rafters

Utilising a pitched roof as a usable living space is an effective way to maximise the square meterage of a residential development.

Pitched roof insulation over rafters.

Internal restrictions like maintaining sufficient head height can mean that fixing the insulation between and. It can run over the top of a horizontal ceiling or it can be placed at rafter level. 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. Its versatility is the key to its popularity whether being used to achieve.

Superfoil makes pitched roof insulation a breeze with its easy and quick installation methods with no excessive measuring or cutting required. Superfoil manufacture a wide range of products suitable for both under rafter and over rafter installation. The baffles will allow circulation to continue even though insulation has been installed directly in the path of the rafter air movement. When it comes to pitched roofs however adding a thick layer of insulation to the rafters can result in a depth of roof construction that may not suit every site meaning over rafter insulation sarking only is not a viable option.

From retrofit applications to new builds superfoil is the perfect insulation for your pitched roof project. Insulating the roof above the rafters is known as warm roof insulation as the rafters are brought into the insulated envelope of the building. Air circulates from the lower part of the roof overhang through the rafters and out the ridge vent of your roof. The roof will typically be insulated above the rafter line creating what is most commonly known as a warm roof.

In this section we ll be dealing only with insulation at rafter level and forming a warm roof construction. Pitched roof insulation can be placed in two different locations. Kingspan with a flat roof this issue does not arise but the u value constraint and the amount of insulation needed is just the same. Arguably the most popular pitched roof solution installing insulation between and under the rafters uses the depth of the structural timbers to best effect.

When it comes to pitched roofs however adding a thick layer of insulation to the rafters can result in a depth of roof construction that may not suit every site meaning over rafter insulation sarking only is not a viable option.