How To Reshingle A Roof Over Old Shingles

They don t do a good job of bridging over gaps dips or humps including the stepped texture created by.

How to reshingle a roof over old 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. Shingles are designed for flat surfaces. Use 1 5 or 1 75 inch roofing nails.

Step 3 cover the old shingles. Once you have installed shingles just past a plumbing vent install the flashing piece so it will lie on top of roofing at its bottom but be covered with roofing at its top. Pry off old roof shingles with pitch fork. The cap of each shingle should fall evenly in half over each side of the ridge.

Place the top of each starter shingle firmly against the bottom of the shingle immediately above it and even with the eaves then nail it into place. If the job is done correctly with the new layer of shingles laid flat over the existing shingles the old roof cushions the new one and serves as a secondary barrier should wind or water ever break through the new shingles. Place and nail the shingles from the bottom of the roof to the top. The following list includes some universal reasons not to reroof as well as some considerations or things to check out if you re seriously considering adding new roof shingles over old ones.

Damaged shingles should be removed to check the decking for problems. All shingle manufacturers honor the warranty whether their products are used for a reroof or a new roof. Place the ridge cap shingles over the roof ridges. In this video i take show how to proper recover an old roof and make it look like it s a single layer check it out you might find useful tips for your new.

Nail down loose roof sheathing to rafters.