New Roof On Old Roof

Re lay the shingles you removed from the existing roof.

New roof on old roof.

The more peaks valleys skylights and other obstacles the roof has the higher the installation cost will be. Shingle the addition roof letting the new shingles fold through the valley center and onto the old roof deck by at least 1 ft. The actual cost will vary depending on whether it is a composite asphalt shingle roof or a fiber cement concrete composite shingle installation. The one we re putting on the old farmhouse is pennsylvania blue black and it s meant to last at least a hundred years.

The roof of a typical two story 2 000 square foot house with a gable roof will consist of less than 1 500 square feet of roofing area or about fifteen squares. Replacing an asphalt roof with new shingles will cost between 5 400 and 9 000 or an average of 7 211 for a 2 000 square foot home not including old roof removal. While many shingles today are produced for durability many factors can accelerate the aging of shingles. Up from the valley center.

Find a pre screened local roofing contractor. Call for free estimates from roofing pros now. Your roof is at least 20 years old. Installing new roof shingles over old effectively doubles the weight of the roofing so you have to make sure your roof structure can handle the extra load.

If you re going to add a roof on top of an old one it s a good idea to remove any loose shingles and apply a new layer of 30 pound roofing felt before laying the new shingles. Shingle edges are curled or shingle tabs are cupped. That s also why building codes commonly limit re roofing to no more than two layers. A properly installed layover roof can look and function as well.

A layer of old deteriorating shingles can make your new roof look bad. Installing a new roof over an existing one also called a layover or nailover is often possible although not always the best option. If your existing roof is fairly old there s a good chance the shingles are damaged. Cost of a new roof.

Bald spots where granules are missing. A slate roof is a humbling thing. The complexity of the roof. Ranch homes for example are much easier to roof than tudor or victorian styles.

Jeff the roof guy showed us the copper nails. When old shingles are torn off new roofing paper starter shingles ridge vent and moisture barrier are installed. Your house will probably be worth less.