Internal Garage Roof Insulation

This is a key component of creating a warm habitable space from what is often a cold and drafty garage.

Internal garage roof insulation.

In either case you will need to follow the general steps below to insulate your garage roof. Repeat this step until you have cut enough insulation to cover the entire door. The space created above the garage would also have to be fully insulated in a similar fashion to the garage. There should be a continuous ridge and soffit ventilation.

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. Use fibreglass cellulose foam board or closed cell spray foam if it were my garage i d go with spray foam. It s sold in pre cut batts and long blankets that fit between wall studs and ceiling joists.

Then cover it with drywall. Cut foam insulation to size now that you know the dimensions for each panel on your garage door cut the foam insulation to size. If you are insulating the garage ceiling not only by the truss level but also up by the roofline then you must leave at least 1 1 2 to two inches of air between the fiberglass and the underside. Make sure you have enough ventilation on your roof as well.

One of my main considerations when insulating a garage roof is ventilation. If the existing roof of the garage is pitched or if you are intending to build a space above the garage with a pitched roof then we suggest you look at our page on pitched roof insulation which covers this area in a bit more detail. But if the garage is heated you should definitely insulate. But when it comes to upgrading your wall where your garage door resided or if your garage is detached you ll have to put some work in.

Poor ventilation which can lead to water vapour permeating the internal finishes and insulation is a cause of many garage problems. Adhere insulation to garage door open your adhesive and start adhering your cut insulation to the door. Fiberglass is the most commonly used type of insulation in garages just as it s the most popular type in homes. However if you have a cathedral style garage roof you will need a scaffolding to get into the upper areas of the roof.

You can also get loose fill fiberglass which it suitable for blowing into a garage attic space above a finished ceiling.