Roof Tear Off Or Second Layer

If you don t tear off the old layer you can t examine the decking.

Roof tear off or second layer. For a second layer to be as good as a roof tear off you would have to have sound decking no leaks and a roof with no sidewalls where flashing is needed in order to tie the tiles in to the exterior walls. It was once common to lay a new shingle roof over the preexisting layer at least once or sometimes even twice. The additional price is mostly related to the extra labor that goes into a tear off roof. Pros and cons of adding a second layer of shingles.

If you have done some serious research on roofing then you have probably heard about adding a second layer of shingles on top of the old ones. Often homeowners must undergo a tear off versus adding a top layer of shingles if the current roof meets certain conditions. Obviously during the tear off we spotted the leak and were able to change out the rotted wood and re flash the area. The case behind a tear off.

Eliminating the tearoff can easily save 1 000 or more on a new roof but you re really just delaying the cost. This is no longer allowed in some jurisdictions where complete tear off of the previous roofing is now required. Replacing a roof can be very expensive and exhausting at the same time. Stripping away the old roof more expensive because of the additional labor and materials peeling off the old roof down to the sheathing is your only option if you already have two layers.

You can t know for sure that there aren t any soft spots or. And a good job involves installing new flashings rather than relying on the existing ones. Posted july 31 2018 by onpage marie. In a shingle over if some of the decking has buckled and warped over the years it likely isn t going to be noticed and fixed.

Over the top with shake faux architectural weaves over old valley cuts. I have a 1949 1600 sf under roof with 8 12 pitches valleys and hips 2 6 rafters on 16 on center sheathed with 3 4 center matched lumber going over at least 1 layer of 3 tab shingles a partial tear took off the old tabs and left a nice wavy surface in pretty good shape. Even where layering is allowed applying a new layer of shingles over the old should be. Installation is easier than for a tear off job because you can use the existing shingles as guides for laying the new ones.

A roof is one of the most vital components of a house. More expensive a tear off roofing job is likely to run you as much as 1 000 more. When it s time to replace the roof again and you have no choice but to start anew two layers is the maximum allowed in most areas you ll have to pay extra for the two layer tearoff and disposal. But you must take care to install shingles correctly so they lie flat.

This old house general contractor tom silva prefers this route even when the roof is just a single layer so he can find the source of any water.