Insulate Between Roof Rafters

Ceiling insulation refers to any type of insulation installed within the floor nearest to the roof structure of the home.

Insulate between roof rafters.

Common rafter depths range from 100mm to 200mm. 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. Then feed the rolled insulation under wires and pipe if either is present. Place the plastic sheeting on top of the rolled insulation.

Its versatility is the key to its popularity whether being used to achieve. This limits the maximum thickness of the insulation between the rafters to between 50mm and 175mm. An efficient room in a roof in a new build property where over rafter insulation is not desirable. Arguably the most popular pitched roof solution installing insulation between and under the rafters uses the depth of the structural timbers to best effect.

This generally would not be a sufficient thickness to achieve the u values required to meet building regulations and more insulation would need to be added. Install ventilation baffles into the space between the rafters before you install the insulation usually by stapling into place. For rolled insulation place it between roof rafters. Roof insulation refers to the practice of installing insulation on the roof slope both above and below the rafters.