New Roof Or Second Layer Of Shingles

In this video we provide details on how to install roof shingles over existing shingles.

New roof or second layer of shingles.

A roof is one of the most vital components of a house. 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. Plus depending upon the size of your roof you ve added multiple tons of weight which could pose a big problem if there is significant snow accumulation. Be sure to check with the shingle manufacturer regarding all warranty issues and installation requirements before re roofing.

Apply the shingles to all roof planes ending a row of shingles at the top of the plane which is the ridge or peak and cut to follow the profile of any outside corners. Roofing second layer of shingles roofing. Replacing a roof can be very expensive and exhausting at the same time. The standard practice was that you could install a new layer of singles directly over the old layer during a re roof.

Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros. Flashing around roof penetrations and sidewalls can be compromised. 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. Posted july 31 2018 by onpage marie.

If you don t tear off the old layer you can t examine the decking. Re roofing may affect the warranty on the new shingles. Re roofing used to be pretty straight forward with 3 tab shingles. We discuss the nesting method which helps minimize an uneven appear.

How to shingle over existing shingles and how to shingle a roof how to install roof shingles shingle layout lines h. Before you reshingle a roof read our step by step guide for adding new shingles over old ones. Pros and cons of adding a second layer of shingles. Select a length of roofing nails that penetrates completely through the new layer of shingles existing layer and the wood roof deck.

Since the roofer is able to identify and repair high risk areas a new roof offers better quality than an old one. The second layer is also more difficult to install properly compared to new shingles. A new roof fixes existing issues and traps less heat than multiple layers which can cause shingles to break and curl faster.