How To Do A Roofing Layover

Can you do a layover instead of roof replacement.

How to do a roofing layover.

If you do nest the layover just watch that the previous contractor pulled the rows in places to straighten out the roof. Installing a new roof over an existing one also called a layover or nailover is often possible although not always the best option a properly installed layover roof can look and function as well. Because of the extra weight caused by two layers of shingles only one overlay can be done 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.

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 roof replacement. What to do if the old roof is not straight if the existing roof has wavy horizontal lines you can take out the waves by snapping a horizontal line 1 2 inch below the shingle bottoms of one course. Choosing shingles for a layover job. 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.

Used to be the headlap color was the same as the shingle but everything out there now uses whatever for the headlap color. It s a good idea to use at least 40 year shingles. A roof overlay is done when the second set of shingles is placed on top of an existing layer of shingles on a roof. Layover may be a good.

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 shingle over existing shingles and how to shingle a roof how to install roof shingles shingle layout lines h. Roofing second layer of shingles roofing. Architectural shingles are an even better choice.