Install Roof Shingles Over Top Old Roof Shingles

That s also why building codes commonly limit re roofing to no more than two layers.

Install roof shingles over top old roof shingles.

Install a layer of roofing felt over the roof before you begin installing the new shingles. The felt should be secured every six inches with nails or staples. Can you put new asphalt roof shingles right over old ones. 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.

Install the eave piece first then the rake piece over it. Damaged shingles should be removed to check the decking for problems. Why installing new shingles over old shingles can be good. When you should tear off your roof and start from scratch instead.

Damaged decking will need to be repaired before you can install any new shingles. Drive nails at high points on the underlying roof the bottoms of the shingles. Use 1 5 or 1 75 inch roofing nails. If the old ones are flat and you fill in any missing tabs and you do no more that a total of two layers of shingles yes you can reshingle over old shingles.

Step 3 cover the old shingles. When roofing over your existing shingles can be a good idea. Many arizona homeowners with shingle roofs do decide to roof over their existing shingles because. Let s start with the good.

At the eave and the rake install u shape drip edge flashing made for reroof jobs. You can save money because there s no dump fee for removing your old roofing and there s no need for additional felt paper over the old roof.