How To Do A Roof Layover

There are pros and cons to both approaches.

How to do a roof layover.

We don t do too many roof overs anymore. After that both layers of shingles must be removed and a new set of shingles placed on your roof decking. Use a roofing shovel. Knowing the costs and benefits can help you make this important decision.

Doing it now will make it easier to keep the job clean. There are generally two options when installing a new roof. How to roof over existing shingles step 1. How to install a roof over an existing roof determine the feasibility.

A roof can only have one layover done. A roof overlay is done when the second set of shingles is placed on top of an existing layer of shingles on a roof. The roof should be in sound. 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.

Inspect the condition of your current roof. Multiple layers of shingles can make it difficult or impossible for the nails to penetrate. 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. 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.

Remove air vents and pipe flashings by prying out or unscrewing the fasteners holding the. The condition of the existing roof is critical. Therefore if your roof already has two layers of shingles layered separately you cannot have a layover done on top of it. You will have a short row on the first course but if the existing roof was installed straight it should come out looking good.

Remove the ridge caps. 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. That means double the labor and debris just when you re taking the roof off. And when you do you won t just have one layer of roof to replace you ll have two.

Because of the extra weight caused by two layers of shingles only one overlay can be done on a roof.