Putting Shingles Over Old Shingles On Garage Roof

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Putting shingles over old shingles on garage roof.

That s a lot of extra weight putting added stress on the roof decking. All shingle manufacturers honor the warranty whether their products are used for a reroof or a new roof. Because asphalt shingles are routinely exposed 5 in rip down the first strip the starter course so that it is 5 in. Adding new roofing over old sometimes called a re roof is possible only with asphalt shingles also called composition shingles.

Four years after installing my new shingles they re still nice. But before we get started one thing must be clear. The felt should be secured every six inches with nails or staples. Apart from the problems going unnoticed during the actual shingle over there are long term effects to consider as well.

For instance instead of just one roof on your home you now basically have two. Damaged decking will need to be repaired before you can install any new shingles. My shingles are only six years old so i was shocked to see deterioration. But you must take care to install shingles correctly so they lie flat.

After the beating it took this winter our roof needs to be replaced. To level out an existing asphalt shingle roof rip down reduce the height of two courses of shingles as shown in the drawing below. Now that we ve taken care of the primary question at hand we ll consider a couple of reasons why you might want to do this. Leave the old valley flashing in place and install new over it.

The answer is yes you can lay new roof shingles over old ones. The color is the same but. Before you begin installing the new shingles be sure to inspect the roof for any damage. Step 3 cover the old shingles.

The shingles covering the peak of the roof do not look like all the other shingles on my roof. If the job is done correctly with the new layer of shingles laid flat over the existing shingles the old roof cushions the new one and serves as a secondary barrier should wind or water ever break through the new shingles. Installation is easier than for a tear off job because you can use the existing shingles as guides for laying the new ones. In this video we provide details on how to install roof shingles over existing shingles.

Long term effects of shingling over shingles. If you need to redo your roof you might be tempted to save some. Then we ll look a lot more reasons why you might not want to do this. We discuss the nesting method which helps minimize an uneven appear.

Is it okay to put the new shingles right over the old ones. Finally i had time to put the video clips together.