How To Insulate Your Roof


If you are ready to upgrade your roof, you need to think more than just what material and style you want. That is, once you decide what material you are going to use on your roof, you need to decide how you are going to insulate it. The insulation on your roof is vital because it has such an impact on the overall energy efficiency of your home.

Much of the heat transfer, during both the winter and summer, happens on the roof. So, not only do you want to choose a roofing material that is a properly rated for the climate that you live in, but you also want to think about how you are going to insulate your roof deck before you install the new material. There are many different forms of insulation that go in between the roof deck and the actual roofing material. This article looks at two of the most effective and affordable types of underlayment installation.

Spray Foam

Spray foam roof insulation might not sound like it would be very effective because it is so soft. Indeed, it isn't the best solution for some roofing materials, especially for heavy tiles on roofs with steep pictures. But, if you have asphalt tiles or wood shingles, these are perfect products for spray foam insulation. The foam is sprayed directly on top of the roof deck. Basically, since it is sprayed on site, the foam can be applied very quickly. The foam not only adds insulation to the roof, but it also seals and fills any holes in the roof deck. The foam will create a smooth, waterproof surface that the roof material can be installed directly over it.

Fiberglass Insulation Sheets

Fiberglass insulation sheets are remade and brought to the installation site. They work in a similar manner to spray foam. Since the fiberglass is already hard when it is installed, the job isn't quite as messy. The foam pieces are glued to your roof deck, and the tiles are installed over them. Fiberglass sheets don't offer the waterproofing and protection of spray foam, but they can dramatically increase insulation. That is, there is a greater risk of water seeping in between the individual sheets and affecting the deck underneath it.

As you can see, both of these products can add insulation and protection to your roof, but spray foam might be the better choice for a rainy climate. For more information, check out a website like


4 June 2018

does a roofing contractor do more than roofing?

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