How To Insulate My Loft Roof

The insulation is installed under the roof in the slope.

How to insulate my loft roof.

Don t forget to insulate the loft hatch. You can use batts polystyrene slabs expanded polystyrene or spray foam to insulate your roof or loft space. If you re laying narrow pre cut rolls 370 380 or 570mm or encapsulated insulation jump to step 2. An alternative way to insulate your loft is to fit the insulation between and over the rafters these are.

250mm wood wool board 240mm layer of fibre or wool insulation 165mm of rigid foam known as pir board insulation. Choosing loft insulation 1. Check out our how to video at the link below. So to insulate a pitched roof this can be achieved with any of the following materials installed between the rafters.

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. 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. 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. Https youtu be w4mkphzmqxw contact us restorat.

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. See how to calculate the desired width of loft roll insulation for appropriate width sizes. If you want to use. Cut any larger width rolls 1140mm to the desired width dependent on your joist s spacing.

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. Diy rafter insulation when handling wool ensure you take enough rolls with you into your loft space. Depending how deep your rafter is you. Make sure the insulation is 50mm below the actual roof which can be done using the battens as your measuring gauge for.

Use scissors to cut through the. With a warm roof the usual process is to split the insulation into two layers.