Asphalt Shingle Roof Layers

The top surface of the shingle includes a granule mineral coating.

Asphalt shingle roof layers.

There are a variety of factors that affect the lifespan of your roof including climate roof design installation and material. There are some advantages to roofing over existing shingles says dale richards owner of richards roofing in troy michigan. While most asphalt shingles are marketed to last between 25 50 years some roofs don t last more than 7 10 years. Most building codes allow this but is it a good idea.

If your decking is less than 3 4 inch then a 1 1 2 inch nail will suffice. Richards also estimates that the homeowner saves at least 1 000 in costs associated with removing and properly disposing of the existing shingles. If you are putting a layer of asphalt shingles over an existing layer of asphalt shingles on to a 3 4 inch deck or a plank deck then you should be using 1 1 2 inch nails. Here are the pros and cons.

Experience the total owens corning roofing system and high quality roofing shingles. More than 70 of all houses in north america are covered in asphalt roof shingles. Most building codes allow up to two layers of organic or fiberglass asphalt shingles. Here s a closeup view of an asphalt roof shingle.

Owens corning produces high quality asphalt coating asphalt sealants and adhesives for asphalt shingles. Ridge vents are at the top of your roof covered by roofing material but with a gap designed to allow warm moist air to escape from the attic. If the structure can support the added weight a typical 20 square 2 000 square foot reroof will cost at least 1 000 less than a tear off job. This type of roof shingle consist of a fiberglass mat saturated on both sides with hot asphalt.

The five main types of roofing materials are asphalt shingles cedar shakes concrete or ceramic tiles metal sheets and rubber used for flat roofs. That limit pertains to roofs with up to a 4 12 pitch. We can even help you find a professional to install it. Let owens corning help you determine when it is time for a new roof and then let us help you choose the shingles for your roof that are right for you.

The homeowner will have two layers of shingles protecting the roof and the home is less likely to have ice dams he says. Pros to overlaying a shingle roof. First of all multiple layers of shingles simply means layering a new asphalt shingle roof on top of the old one rather than stripping the roof completely to expose the sheathing and replacing it with new shingles. With applications every five years roof maxx can add up to 15 years of life to an asphalt roof.