Should You Remove The Old Shingles Roof

So i would recommend that you remove the first layer so that you get the full life of the new layer of shingles.

Should you remove the old shingles roof.

Finally tearing off old roofing materials is usually necessary to obtain workmanship and manufacturers warranties. Some roofers recommend this practice to homeowners who are planning on switching from an asphalt shingle roof. Up until the year 2000 it was legal to install up to 3 layers of shingles on a single roof. Should old shingles be removed before new installation.

You answered my question. The shingles will roll up like a ball in front of the fork. This also gives you or the roofer the opportunity to examine the sheathing for water damage. Push the shingles down to the roof jacks.

Remove shingles in a 2 to 3 ft wide section as you work down the roof. Well thank you very much there. This will help avoid showing ripples in the metal roofing panels. A true standing seam vertical roof however will require that either the old shingles be very smooth they be removed or battens be installed over them.

However both of these benefits have caveats. But you must take care to install shingles correctly so they lie flat. If conditions are right new shingles laid over old shingles can be just as attractive and durable as shingles laid on bare sheathing. Continue tearing off the shingles and underlayment until you reach the roof jacks then start over at the top of the roof.

As much of base flashing on chimneys and pipes is under shingles you cannot know for certain if the flashing is in good shape without tearing off the existing layer of shingles. March 11 2020 by safe harbor roofing reroofing is the practice that involves installing a new roof over an existing one. If any areas of the roof have become severely damaged it s usually better to remove the old shingles and start from scratch. We don t recommend them nor do we do them.

It can be a difficult question to answer because while it is possible to roof over a single existing layer of shingles it is always a better idea to tear the old shingles off and install a completely new roof. Installation is easier than for a tear off job because you can use the existing shingles as guides for laying the new ones. Now everything is trapped under the 2nd layer of shingles again having the potential to shorten the lifespan of the top layer of shingles.