To Layer On Top Of Each Other Roofs

But contractors who spoke with angie s list say best practices call for stripping the roof down to the wood deck to inspect it before installing a new roof.

To layer on top of each other roofs.

For many years it was acceptable to put even the third layer. Also place a nail 2 inches from each end of the shingle in line with the other two. Since it s being put on top of another less than perfect roof it s likely that it may not look as good as a brand new roof would. By placing shingles on top of a damaged roof you ll affect the way the roof looks.

Steep sloped roof products such as tile slate metal and shakes only allow one layer. Use 1 5 or 1 75 inch roofing nails. Each layer has a specific purpose that when combined with the other components provides protection to your home. This is especially true if you ve overlayed your new shingles on top of warped shingles.

Asphalt shingles typically can have one more layer added over the top two roofs total. Local codes might not allow re roofing. Place the top of each starter shingle firmly against the bottom of the shingle immediately above it and even with the eaves then nail it into place. Now you just have to decide whether to remove the existing roof shingles or recover the roof.

You don t have. More difficult to check deck when you tear off the old roof you get a look at what s underneath. In all use four nails per 3 tab shingle. Most roof decking is made from sheets of plywood.

Roof deck is the roofing material that sits on top of the roof trusses. On most flat roofs such as epdm tpo or modified it is perfectly acceptable to two layers of roofing. Decking wood sheathing the decking is the base on which everything else is laid. It s usually a peel and stick product that adheres directly to the roof deck.

Here are the layers of a roof in order of application bottom to top. Most cities and towns allow a maximum of two layers of shingles says chad muth president of muth company roofing in westerville ohio. Having multiple layers of shingles is going to make your roof hotter because the heat gets trapped between the layers which could mean premature aging of the shingles. The roof is a system composed of layers of different materials that work together to keep wind and weather out of your home.

Understanding the different layers of a roofing system is crucial to having a successful project and positive experience when hiring a roofing contractor. Two layers is the maximum in most areas but some building codes allow only one. A re roof might not look good on an inspection report. For example towns in climates with heavy hailstorm activity or significant ice dam problems may not allow multiple roofing layers.