Re Roofing An Old House

Nail down loose roof sheathing to rafters.

Re roofing an old house.

The old sheathing boards are likely three quarters of an inch. Reroofing is the process of layering one set of new shingles over a set of existing shingles. Cover roof deck with 30 pound felt underlayment. Pry off old roof shingles with pitch fork.

This leaves us with 8 250 to install 15 squares of gaf timberline shingles vs. 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. Staple felt every 6 to 8 inches. Roof repairs are generally best left to a professional roofer who understands old buildings and has the appropriate access equipment.

The size of the facility can affect the re roofing process and also the costs incurred during the process. In this video this old house general contractor tom silva explains how to reshingle a roof steps. Because there is no tear off reroofing can go much faster and be much less expensive than a complete roof replacement. It can only be done once so if you already have two layers of roofing in place reroofing is not an option for you.

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. Fortunately with the right materials planning precautions and the proper application of elbow grease any homeowner can re roof their house safely and cheaply. The old part of the roof can then be used for other activities. Protruding nails will tear holes in your new shingles.

So you can either get three quarters of an inch plywood or osb or go with the cheaper half inch size and. 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. When tearing off the existing shingles be sure to remove all the old nails or pound them flat. 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 drip edge flashing to lower edge of roof. 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. This byot diy project is all about how to install a new roof. This is a step by step tutorial will show how to reroof a roof from start to finish.

Stripping away the old roof more expensive because of the additional labor and materials peeling off the old roof down to the sheathing is your only option if you already have two layers.