How To Re Roof Over Asphalt Shingles

Prep work for re roofing over asphalt shingles inspect the condition of the existing roof and roof deck for numer of roof layers soundness of roof decking smoothness.

How to re roof over asphalt shingles.

Building officials in some areas will only allow a re roof over one layer of shingles while officials in other places may allow you to place the roof over two layers of shingles. Watch for damaged or un sound roof decking. Yes you can install a metal roof over shingles. The next shingle should be placed and secured beside the first one.

Re roofers have tricks to lay new roof shingles over old so that the same step ups between courses are maintained but if any old shingles are cupped curled or otherwise misshapen those defects will telegraph through to the new layer. Investigate strip shingles entirely and replace roof sheathing as needed. Choose a shingle style with the same dimensions as those on your. How to do it.

Secure the shingle with nails one inch from each corner. Remove the ridge caps. Use a flat pry bar or roofing shovel to pry. Doing it now will make it easier to keep the reroofing job clean.

When their asphalt shingle roof has reached the end of its life most people assume their only option is to strip the roof to bare sheathing before a new roof can be applied. Although many metal roof systems can be applied over an existing roof layovers are more commonly done with asphalt shingles. But unless the sheathing is extensively damaged or the structure can t support the weight of another layer of roofing a better solution is to apply a new layer of shingles right over the old one.