How To Insulate A Pitched Garage Roof

Fitting the insulated plasterboard.

How to insulate a pitched garage roof.

If your garage is attached to your house you will notice a big difference in your home s temperature as well. Insulation rolls preferably ones easy to cut into pieces one of the best methods you can use if you want to regulate the temperature of your garage is to insulate the garage roof. 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. Popular materials include rock wool and rigid insulation boards.

To ensure that i leave sufficient ventilation space i often nail timber stop battens to the side of the rafters. This will prevent condensation forming in the roof. This can be done through the use of a stud wall a form of internal insulation whereby a second wall is installed to create a gap between both that can be filled with insulation materials. However if you have a cathedral style garage roof you will need a scaffolding to get into the upper areas of the roof.

There will also be kooltherm k7 pitched roof board between the rafters image credit. Pitched roofs for pitched roofs i always stick with my old faithful combination of kingsspan kooltherm k107 pitched roof boardbetween the rafters and kooltherm k118 insulated plasterboard for the inside faces. The biggest benefit to adding insulation to a pitch roof is the energy savings you ll enjoy. Just remember to use thicker r 40 insulation.

Stagger the horizontal joins. Remember that insulation is designed to create a barrier between your home and the outdoors. The bottom of the insulated plasterboard should meet the floor level of the roof space. This means that air you ve paid to heat or cool will stay inside your home giving your heating system a break.

If you have a flat garage roof and an attic above you can install the garage insulation from below using a standard ladder. How to insulate a garage ceiling insulating the ceiling of your garage involves the same process as insulating the walls. For a cold roof where the insulation such as kooltherm k7 pitched roof board is fixed between the roof joists the roof needs to be ventilated by leaving a 50 mm gap above the insulation to create an air gap which is vented to the outside.