Place a pitchfork flat garden shovel or shingle scraper under the shingle.
Shingle old roof new.
Looks just as good and lasts as long.
A typical roof replacement quote will normally include the removal and disposal of up to two layers of old shingles.
Installation is easier than for a tear off job because you can use the existing shingles as guides for laying the new ones.
It should also include the installation of new underlayment such as the 30 pound roofing felt chimney re flashing and ice and water shield at the eaves and valleys of the roof as required by the local building code.
The procedure for installing a new roof involves stripping one side of the roof replace old shingles with the new ones and repeat the same process for the other side.
Has the same manufacturer s warranty.
The actual cost will vary depending on whether it is a composite asphalt shingle roof or a fiber cement concrete composite shingle installation.
If the roof was installed over another layer or several layers and it is older than 20 years chances are you need a new roof.
Shingles labor and disposal of the old shingles.
But you must take care to install shingles correctly so they lie flat.
Installing a new roof over shingles takes less time than tearing off the old roof.
Pry the shingle from the roof.
That s also why building codes commonly limit re roofing to no more than two layers.
This saves labor costs as all ladders and other equipment are already in place.
The nails in the shingle should come up with the shingle when you pry it off.
Cost to replace asphalt shingle roof replacing an asphalt roof with new shingles will cost between 5 400 and 9 000 or an average of 7 211 for a 2 000 square foot home not including old roof removal.
If you re going to add a roof on top of an old one it s a good idea to remove any loose shingles and apply a new layer of 30 pound roofing felt before laying the new shingles.
But is this a good idea.
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.
It also depends on whether the old roof was removed and you only have one layer of shingles and if it is properly ventilated.
Call for free estimates from roofing pros now.
Some roofers recommend this practice to homeowners who are planning on switching from an asphalt shingle roof.
As long as it s done right and under the right conditions installing new shingles over old ones can last as long and look just as good as a complete re roof.
Manufacturers will still.
Find a pre screened local roofing contractor.