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     Have you ever looked up at your roof or your neighbor’s roof and noticed strange looking bumps or see 4 x 8 sections that look as if they are rising from below?  Have you asked yourself “How can it look like that?”  Your roof may only be 5 to 7 years old.  Unfortunately, time and time again in the Portland metro area, we see this sort of thing.  Would you believe your roof moves?  This movement is called expansion and contraction.  As the temperature heats up and cools down from day to night and from summer to winter, so does your roof.  As your roof heats up, it expands.  As your roof cools down, it contracts, and so does the plywood under the roofing.  If the plywood and rafters were put on with NO space between the sheets then what will happen to the plywood when it needs to expand?  This is a picture of what happens to your plywood when it can’t move. 

Exposed Plywood Issue

Close up of no space

Expanded Plywood

The roof in this picture is only 6 years old, and the contractor pushed the plywood together with no space.  This is the kind of work done by a roofing contractor that puts on roofs as fast as they can, for as cheap as they can, and who knows as little as they can. Oh yes, it happens, more than what is talked about. Why isn’t it talked about? You now know the down side of cheap!

At Roof Life of Oregon, we take the time to put your roof on correctly.  Sure, it may take us a fraction longer to finish your roof than most contractors, but wouldn’t you want us to take the time to put on your roof correctly the first time?  We think so also. That is why we offer Portland’s only Lifetime Workmanship Warranty; to give you peace of mind that your roof will last and work as it should.

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