Asphalt Shingle Roof Layers

Fortunately roof maxx s revolutionary new technology uses 100 natural plant based bio oil to restore shingles flexibility and instantly add five years of life to a roof.

Asphalt shingle roof layers.

If your decking is less than 3 4 inch then a 1 1 2 inch nail will suffice. Most building codes allow this but is it a good idea. Owens corning produces high quality asphalt coating asphalt sealants and adhesives for asphalt 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.

When it s time to replace your roof there are several factors that might lead your roofing professional to recommend adding shingles on top of your existing 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. The top surface of the shingle includes a granule mineral coating.

Most building codes allow up to two layers of organic or fiberglass asphalt shingles. Experience the total owens corning roofing system and high quality roofing shingles. That limit pertains to roofs with up to a 4 12 pitch. Richards also estimates that the homeowner saves at least 1 000 in costs associated with removing and properly disposing of the existing shingles.

The homeowner will have two layers of shingles protecting the roof and the home is less likely to have ice dams he says. Here are the pros and cons. Most building codes allow two layers of organic or fiberglass asphalt shingles on roofs with a 4 12 pitch or less and three layers on steeper roofs. More than 70 of all houses in north america are covered in asphalt roof shingles.

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. With applications every five years roof maxx can add up to 15 years of life to an asphalt roof. Pros to overlaying a shingle roof. 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. Here s a closeup view of an asphalt roof shingle. 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.