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Failed Underlayment: Understanding a Common Roofing Problem

Wednesday, February 11th, 2015 by Scott Siegal


The underlayment, though not often seen, is a very important part of the roofing system. It prevents water from seeping underneath the shingles. It's installed right on top of the decking and serves as an extra layer of protection from the elements.

Like shingles and flashing, they're important in preventing roof leaks. A good quality underlayment resists water fairly well. The thicker and stiffer it is, the better and longer it can protect against the weather.

Just like other parts of the roof, the underlayment is also prone to problems. In fact, a failed underlayment is a common roofing concern. To help keep your roof in top shape, here’s what our team at Maggio Roofing, your expert roofers in Washington DC, has to say about its causes and repair options:

What are the Causes of Failure

There are many reasons an underlayment could fail including:

  • Poor quality. Underlayment made with subpar materials can't keep water out effectively. What happens is the product wrinkles and prematurely fails.

You have a range of options for your roofing underlayment. Top manufacturers like GAF, for instance, offer products that provide an extra layer of protection against the elements. Deck-Armor™, for example, is a "breathable" roof deck protection that's installed in between your shingles and roof deck. It keeps water from infiltrating the area under the shingles and causing structural damage.

The great thing about this kind of underlayment is that it doesn't buckle when installed. Because the shingles can lay flatter on it, it may help reduce blow-offs.

  • Poor installation. An underlayment that's made from fine materials may still fail if it wasn't installed correctly. During installation, footfall or improper handling may damage it.

Here at Maggio Roofing, we have the best trained installers in the Maryland and DC area. Many of our installers have been in the business for over 30 years! They know how to install an underlayment properly so that it can protect your roof for a long time.

We're GAF Master Elite™ roofing contractors as well, which means we're authorized to install their superior roofing systems and products. We're also able to issue the best warranties in the industry - that's how confident we are in our work.

How to Repair a Failed Underlayment

Underlayment damage is not easy to spot. We don't recommend climbing up your roof and lifting shingles. You may cause more damage than you can prevent.

Your best bet is enlisting the help of an expert roofer Washington DC residents trust. We here at Maggio Roofing can help you check for underlayment failure. If your area has just been through a storm, all the more reason for you to call us. We will help you catch your roofing problems before they get worse.

After an inspection, we will recommend solutions that best fit your roofing needs. Our dedicated team of repair and replacement specialists will help get your roof back in shape.

Got roofing and underlayment problems? Contact us at (800) ROOF-495 today!

our service area

We serve the following areas

District of ColumbiaMarylandVirginia Our Locations:

Maggio Roofing
6476 Sligo Mill Road
Takoma Park, MD 20912
1-301-500-2046
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