How To Insulate My Loft Roof

If you plan to use the loft or attic for storage you will want to lay boards over the joists.

How to insulate my loft roof.

Recommended videos for you. You should leave the space under the roof tiles free from insulation to give adequate ventilation so that you don t get condensation or water coming through the tiles. Time to get the insulation finished and get this place warm. If you re laying narrow pre cut rolls 370 380 or 570mm or encapsulated insulation jump to step 2.

If you want to use. 250mm wood wool board 240mm layer of fibre or wool insulation 165mm of rigid foam known as pir board insulation. Check out our how to video at the link below. This usually involves attaching a block of polystyrene insulation to its upper side and ensuring any gaps around the side of it are sealed by applying.

Use scissors to cut through the. If 180mm is to be installed then 100mm board might be introduced between the rafters there has to be a minimum 25mm air gap between the insulation and the underside of the tiles or slates with an 80mm board running across the rafters. There are actually three levels where you can fit the insulation and the choice will depend on what the loft will be used for but a combination of two could be needed to meet requirements. Don t forget to insulate the loft hatch.

Diy rafter insulation when handling wool ensure you take enough rolls with you into your loft space. See how to calculate the desired width of loft roll insulation for appropriate width sizes. If the loft is going to be used as living space then the insulation should be placed at rafter level to create a warm roof. You can use batts polystyrene slabs expanded polystyrene or spray foam to insulate your roof or loft space.

Depending how deep your rafter is you. So to insulate a pitched roof this can be achieved with any of the following materials installed between the rafters. An alternative way to insulate your loft is to fit the insulation between and over the rafters these are. The insulation is installed under the roof in the slope.

With a warm roof the usual process is to split the insulation into two layers. Cut any larger width rolls 1140mm to the desired width dependent on your joist s spacing.