Re Roofing An Old House
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It can only be done once so if you already have two layers of roofing in place reroofing is not an option for you.
Re roofing an old house. Assuming a two story house with two layers of old shingles we can estimate the cost of removing and disposing of the old roof at about 2 000 give or take. Nail down loose roof sheathing to rafters. Roof repairs are generally best left to a professional roofer who understands old buildings and has the appropriate access equipment. When tearing off the existing shingles be sure to remove all the old nails or pound them flat.
Nail drip edge flashing to lower edge of roof. Reroofing is the process of layering one set of new shingles over a set of existing shingles. 6 000 to install 15 squares of atlas pinnacle shingles. If your old house has 1 inch dimensional sheathing 1x4 or 1x6 or greater you can use plywood or osb for the replacement even if you re only partially replacing your roof.
Though roofing materials generally have a lifespan of 20 30 years roofs will wear out sooner or later and can cost several thousand dollars to be done professionally. Pry off old roof shingles with pitch fork. This byot diy project is all about how to install a new roof. Staple felt every 6 to 8 inches.
This old house general contractor tom silva prefers this route even when the roof is just a single layer so he can find the source of any water damage upgrade the flashing and install shingles so they lie flatter. The size of the facility can affect the re roofing process and also the costs incurred during the process. The old part of the roof can then be used for other activities. Re roofing can be done either by the owner of the building or by a professional roofer so as to ensure quality work and to prevent wastage of the other roof parts.
This leaves us with 8 250 to install 15 squares of gaf timberline shingles vs. Tear off the old shingles it s impossible to properly install new flashing and underlayment if you don t tear off the old roof beforehand. In this video this old house general contractor tom silva explains how to reshingle a roof steps. The old sheathing boards are likely three quarters of an inch.
Fortunately with the right materials planning precautions and the proper application of elbow grease any homeowner can re roof their house safely and cheaply. Protruding nails will tear holes in your new shingles. Cover roof deck with 30 pound felt underlayment. So you can either get three quarters of an inch plywood or osb or go with the cheaper half inch size and.
Because there is no tear off reroofing can go much faster and be much less expensive than a complete roof replacement.