To Layer On Top Of Each Other Roofs

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.

To layer on top of each other roofs.

Asphalt shingles typically can have one more layer added over the top two roofs total. Now you just have to decide whether to remove the existing roof shingles or recover the roof. 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. This is especially true if you ve overlayed your new shingles on top of warped shingles.

It s usually a peel and stick product that adheres directly to the roof deck. Understanding the different layers of a roofing system is crucial to having a successful project and positive experience when hiring a roofing contractor. More difficult to check deck when you tear off the old roof you get a look at what s underneath. 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. Also place a nail 2 inches from each end of the shingle in line with the other two. Decking wood sheathing the decking is the base on which everything else is laid. For example towns in climates with heavy hailstorm activity or significant ice dam problems may not allow multiple roofing layers.

Two layers is the maximum in most areas but some building codes allow only one. Steep sloped roof products such as tile slate metal and shakes only allow one layer. The roof is a system composed of layers of different materials that work together to keep wind and weather out of your home. Water shield is the next roofing layer that creates a water proof barrier where ice or water can buildup near the roof eaves.

Use 1 5 or 1 75 inch roofing nails. 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. You don t have. Local codes might not allow re roofing.

Most roof decking is made from sheets of plywood. In all use four nails per 3 tab shingle. A re roof might not look good on an inspection report. Each layer has a specific purpose that when combined with the other components provides protection to your home.

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. On most flat roofs such as epdm tpo or modified it is perfectly acceptable to two layers of roofing. Roof deck is the roofing material that sits on top of the roof trusses. Each part of the system contributes to protecting your home from severe weather.