Install Roof Shingles Over Top Old Roof Shingles

Step 3 cover the old shingles.

Install roof shingles over top old roof shingles.

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. Let s start with the good. When you should tear off your roof and start from scratch instead. The felt should be secured every six inches with nails or staples.

When roofing over your existing shingles can be a good idea. Damaged shingles should be removed to check the decking for problems. Damaged decking will need to be repaired before you can install any new shingles. 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.

The two pieces should meet neatly at the corners. 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. Many arizona homeowners with shingle roofs do decide to roof over their existing shingles because. Drive nails at high points on the underlying roof the bottoms of the shingles.

Install the eave piece first then the rake piece over it. That s also why building codes commonly limit re roofing to no more than two layers. Install a layer of roofing felt over the roof before you begin installing the new shingles. At the eave and the rake install u shape drip edge flashing made for reroof jobs.

Putting new asphalt roof shingles right over old ones. Use 1 5 or 1 75 inch roofing nails.