Insulating Flat Roof Garage

Laying flat roof insulation as a rule any roof with a pitch below 10 is classified as a flat roof.

Insulating flat roof garage. A warm roof on the other hand has insulation added above the joists with a waterproofing layer added on top. In most cases there will not be a loft in a building that features flat roofing. If your garage is attached to your house you will notice a big difference in your home s temperature as well. Now that i ve framed my garage wall the second step in my garage transformation is to insulate my garage walls.

If this is in a good condition then it can just be swept clean and the insulation either mechanically fixed or glued on top of the existing roof. While expensive the best insulation is polyiso rigid foam. A warm roof or a cold roof. This means that your approach to insulation will differ from a standard pitched roof.

Of course winter here in san diego isn t going to do much to tax the insulation. Flat roofs are harder to insulate through diy and it s. You can buy insulation kits for standard metal garage doors or you can cut pieces of rigid foam insulation to fit each door panel section. Don t insulate your garage walls and ceiling without insulating the big garage door too.

A cold roof is when your insulation material is fixed between the roof joists. If you missed the first post in this series you can check them out using the links below. Providing adequate ventilation is an essential part of insulation and will allow hot air to escape from the garage in winter as well as preventing moisture build up. The regulating temperature has positive effects on your cooling and heating costs.

In either case you will need to follow the general steps below to insulate your garage roof. When it comes to insulating a flat roof you can go for two options. Between the flat roof insulation and our install of reach radiant barrier insulation on our garage door the shop is now downright comfortable even in the warmer months. You can expect to pay about 55 100 sq ft.

For warm flat roofs where insulation is added above the roof joists the first area to check is the condition of the existing waterproofing on the roof. The task of insulating a garage roof is not hard to complete if you follow a few tips and hints. A ventilation gap of 2 inches between the insulation and the underside of the roof is required as standard. We expect the flat roof insulation project to help retain heat in the winter as well.

For a 1 inch board equivalent of 6 r value. If you have a flat garage roof and an attic above you can install the garage insulation from below using a standard ladder. We recommend having at least 20 r value worth of material for optimal energy efficiency.