What You Need to Know About Underlayment

By March 2, 2020 One Comment

Your roof may look just fine at first glance, but what goes into determining if it is really in good shape?

Many times, it has to do with your roof’s underlayment.

Under your roof’s shingles, is another barrier against rain, ice, and water leaks. This barrier is often the last layer of protection between the outside elements and your roof.

What underlayment essentially does is act like a weather shield, preventing leaks that result from water damming in the gutters, ice dams, wind driven rain, and any vulnerable areas of your roof like around skylights, chimneys, vent pipes, and at the eaves.

You have probably seen some form of underlayment in what is known as traditional felt paper, or tar paper. This is a rolled material that is saturated in asphalt and nailed down under the shingles of a roof. Felt underlayment also comes in a synthetic version, made of polypropylene, fiberglass, polyethylene, or polyester. These synthetic versions are lighter, more effective, and tend to be more resistant to wind blow offs and wind driven rain. Further, it lasts longer than traditional asphalt, and tends to be easier to install. 

Whatever version you choose, the purpose is the same: to keep water out of your roof. The difficulty, however, is that without the eye of a qualified roofing contractor it is hard to know if water is already collecting under you roof. The statement, “If you don’t know, it is best to check,” applies here. Working with a good roofing contractor can not only save you from costly repairs later, but keep your roof in the best condition possible, extending its’ life and saving you money down the road.


This article is brought to you by Blue Sky Solar and Roofing, a solar and roofing restoration company with offices in Dallas, Texas, and Denver, Colorado. Blue Sky specializes in solar roofing, sustainable roofing options and excellent customer service.

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