Second Layer Of Roof Shingles

Still you ve got no less than 17 years from it already.

Second layer of roof shingles.

A second layer is more difficult to install properly. Another issue is that when you add in the second layer it can add extra weight to your roof. Before you add shingles over shingles you need to look at the existing roof to make sure. Make repairs before.

And so second layers generally don t last as long as the first layers. I won t speak to a haphazardly done job. It forces more oil to evaporate out of it and more of the materials that make it pliable and watertight. It is common practice to add a second layer of shingles over an existing single layer provided the roof decking is intact and the roof surface is flat.

This will force you to replace your roof earlier than expected. Roofing second layer of shingles roofing. Because the first layer holds a lot of heat and that can over the long haul wear out the second layer because that heat is the enemy of the asphalt shingle. I think you ve got a good life out of it.

In fact the extra layer can reduce your roof s lifespan by up to 40. The second layer of shingles will trap heat which can result in the decomposition of both roof layers. How to shingle over existing shingles and how to shingle a roof how to install roof shingles shingle layout lines h. But check the shingle warranty from your shingle manufacturer.

That in itself eats away at the. Examine the existing roof. You will get what you pay. That can be either architectural shingles or conventional 3 tab shingles.

How to put on a second layer of shingles evaluate the job. And shingles have started to separate. Before you start hefting shingles to the roof consider whether or not the project is worth doing.