Old Shigle Roof

Here s a closeup view of an asphalt roof shingle.

Old shigle roof.

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. Continue to chalk additional guidelines based on the width of the shingle through at least four courses rows across the roof. Asphalt roof shingles were invented around 1901 in grand rapids mi by h m. All shingle manufacturers honor the warranty whether their products are used for a reroof or a new roof.

If the job is done correctly with the new layer of shingles laid flat over the existing shingles the old roof cushions the new one and serves as a secondary barrier should wind or water ever break through the new shingles. Reroofing is the practice that involves installing a new roof over an existing one. Check out this early piece of shingle sales literature from the company. Still when done correctly this technique of shingle recycling can create a lovely rustic look which is very much on trend at the moment.

Repeat this on both sides of the roof. If conditions are right new shingles laid over old shingles can be just as attractive and durable as shingles laid on bare sheathing. But you must take care to install shingles correctly so they lie flat. As your home ages your roofing will need to be replaced and the old shingles will need to be tossed away.

Have you ever seen a vintage tin stamped ceiling. Asphalt is one of the most common materials for shingles and as such millions of tons of them are thrown out every year. Should old shingles be removed before new installation. But is this a good idea.

March 11 2020 by safe harbor roofing. Installation is easier than for a tear off job because you can use the existing shingles as guides for laying the new ones. However before generating more waste for your local landfill consider alternative disposal solutions first. Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles.

That s also why building codes commonly limit re roofing to no more than two layers. Using old roofing materials as interior décor takes a very special individual to be daring enough even to attempt it. Some roofers recommend this practice to homeowners who are planning on switching from an asphalt shingle roof.