To Layer On Top Of Each Other Roofs Invebriate

Most cities and towns allow a maximum of two layers of shingles says chad muth president of muth company roofing in westerville ohio.

To layer on top of each other roofs invebriate.

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. Re roof or strip the roof down. It s usually a peel and stick product that adheres directly to the roof deck. A re roof might not look good on an inspection report.

Each part of the system contributes to protecting your home from severe weather. 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. Other components such as metal panels or shingles are attached to the sheathing later. Understanding the different layers of a roofing system is crucial to having a successful project and positive experience when hiring a roofing contractor.

Here are the layers of a roof in order of application bottom to top. Additionally make sure that the product you decide to use warranties this type of application. This layer covers the rafters and is beneath the shingles and membrane layers. Local codes might not allow re roofing.

Water shield is the next roofing layer that creates a water proof barrier where ice or water can buildup near the roof eaves. Why you should not add another layer to your roof. Most roof decking is made from sheets of plywood. This is especially true if you ve overlayed your new shingles on top of warped shingles.

Sheathings are panels that envelope the rafters. 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. Sheathing is a layer used as the base of the roof. However most building codes limit a home to only having two layers most homes can handle two layers but adding a third can greatly stress rafters and other structural parts of your home.

Once you have discovered how many layers of roof shingles are allowed the next decision you should make is whether you will have the existing shingles completely removed to make way for two or three new layers or whether you will have another layer of shingles placed on top of the existing layer. For example towns in climates with heavy hailstorm activity or significant ice dam problems may not allow multiple roofing layers. Other parts of the roof are nailed to this later. Now you just have to decide whether to remove the existing roof shingles or recover the roof.

Apply a liberal amount of plastic roof cement at the base of any fixtures plumbing pipes or roof vents which break the plane of the roof surface. Two layers is the maximum in most areas but some building codes allow only one.