Roof Tear Off Or Second Layer

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.

Roof tear off or second layer.

It was once common to lay a new shingle roof over the preexisting layer at least once or sometimes even twice. 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. Over the top with shake faux architectural weaves over old valley cuts. Installation is easier than for a tear off job because you can use the existing shingles as guides for laying the new ones.

Replacing a roof can be very expensive and exhausting at the same time. Even where layering is allowed applying a new layer of shingles over the old should be. 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. 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.

If you don t tear off the old layer you can t examine the decking. The additional price is mostly related to the extra labor that goes into a tear off roof. Eliminating the tearoff can easily save 1 000 or more on a new roof but you re really just delaying the cost. Often homeowners must undergo a tear off versus adding a top layer of shingles if the current roof meets certain conditions.

Posted july 31 2018 by onpage marie. Tear off or second layer. But you must take care to install shingles correctly so they lie flat. The case behind a tear off.

Obviously during the tear off we spotted the leak and were able to change out the rotted wood and re flash the area. 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. And a good job involves installing new flashings rather than relying on the existing ones. 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.

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. More expensive a tear off roofing job is likely to run you as much as 1 000 more. This is no longer allowed in some jurisdictions where complete tear off of the previous roofing is now required. It s for this reason that many people choose to go with an overlay roof rather than a full tear off.

A roof is one of the most vital components of a house.