How To Add Second Layer Of Shingles To Roof

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

How to add second layer of shingles to roof. It would seem that an additional layer would be beneficial. That helps your final layer of shingles look flat with a proper installation. When adding a second layer of shingles the bumps or imperfections from the old roof will transfer to the new layer. You could be adding weight to your roof with a second layer that your house cannot handle.

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. Replacing a roof can be very expensive and exhausting at the same time. A roof is one of the most vital components of a house. Install the second layer.

We discuss the nesting method which helps minimize an uneven appear. Roofing second layer of shingles roofing. How to shingle over existing shingles and how to shingle a roof how to install roof shingles shingle layout lines h. Secondly if your second layer blows off in a bad storm water will run right under the shingles and down all of the nail holes that have penetrated both layers of shingles.

Add a layer of shingles over the newly repaired area before you install your second layer of shingles. Your roof will not look as good as when you do a full tear off. Posted july 31 2018 by onpage marie. Use 1 5 or 1 75 inch roofing nails.

That second layer of shingles won t last as long. Shingles add weight to your roof. Most likely your roof structure was designed for a dead load of one layer of shingles plus extra for snow and a safety margin. That in itself eats away at the savings.

Pros and cons of adding a second layer of shingles.