How To Do A Roof Layover

Plus a layover voids the warranty although many building codes allow one layover a layover job will not last nearly as long as a tear off and most people know that.

How to do a roof layover.

What you need power nailer or roofing hatchet tape measure roofing shovel or flat pry bar hammer drill carpenter s square straight cut tin snips utility knife chalkline broom. Doing it now will make it easier to keep the job clean. A roof can only have one layover done. The condition of the existing roof is critical.

Use a c style drip edge and trim back the first two courses of the existing roof to get the roof started. Since you do not tear off old roofing shingles a layover can be done much faster and it is supposed to be a cheaper alternative to complete. You may have heard it said that there are two equally acceptable ways to install a new roof. Use a roofing shovel.

Multiple layers of shingles can make it difficult or impossible for the nails to penetrate. How to install a roof over an existing roof determine the feasibility. 1 overlaying the old roof with new shingles also known as a layover and 2 completely removing the old roof and then installing the new commonly referred to as a tear off. Re roofing or layover is a process in which the second set of shingles is layered over an existing set of shingles on a roof without taking off the existing layer of old shingles on a roof.

Therefore if your roof already has two layers of shingles layered separately you cannot have a layover done on top of it. After that both layers of shingles must be removed and a new set of shingles placed on your roof decking. The roof should be in sound. Because of the extra weight caused by two layers of shingles only one overlay can be done on a roof.

If the shingle on there is a standard exposure 5 to the weather then you will want to find a shingle of the same dimension to do the roof over. A roof overlay is done when the second set of shingles is placed on top of an existing layer of shingles on a roof. Remove the ridge caps. Roofing is one of the most visible parts of a house and people seem to think that if the seller chintzed out on the roof job what else is wrong with the place that i can t see.

We don t do too many roof overs anymore. Remove air vents and pipe flashings by prying out or unscrewing the fasteners holding the.