Clarksville, Maryland

What to Do About Pooling Water On a Flat Roof September 8, 2020

Clarksville, Howard
 What to Do About Pooling Water On a Flat Roof, Clarksville, Maryland

The potential for pooling water is one of the few downfalls of flat roofs. It can lead to leaks, roofing erosion, and other issues, so you need to address it early. Here’s how to eliminate standing water and enjoy a sturdy, reliable flat roof for your commercial building.

A Guide to Pooling Water & Flat Roofs


Flat roofs require a drainage system that will evacuate standing water that collects after a rainstorm. Water won’t flow toward the drain if the roofing membrane’s pitch is too shallow, causing it to pool. Clogged drains can also lead to pooling.

roofingStanding water will start attracting insects and wear down the protective membrane on your roof. Once it's weakened, water can slip through this membrane and erode the roofing. It will eventually leak into the building and cause water damage.


Pay attention to where water is pooling. These low spots need to be resurfaced so they’re flush with the surrounding roofing membrane.

Applying a plaster filler and smoothening the surface can solve the problem. Professionals will need to unclog drains if debris has created blockages, which involves snaking a rotary tool down the pipe to destroy the debris.

You may need to completely resurface and re-pitch the roof if standing water is collecting in multiple large areas. Professionals may also need to extend your drainage system if the average amount of water is too much for a single downspout to handle.


Check your roof after a storm for debris that may clog the drain. You may need to trim back overhanging foliage or apply a leaf guard on the drain and gutter system.

Professionals may recommend monitoring your roof’s pitch in the future. If you notice water isn’t flowing toward drains, you’ll need an inspector to take a closer look at the drainage system.


If you need help managing your flat roof, the roofing professionals at Marshall’s Contracting will assist. They provide a variety of construction and repair services to Jessup, MD, including roof replacements, storm damage repair, and new shingle roof installation. Learn more about the company online, or call (410) 406-7667 to schedule a consultation.

Other Announcements, Events and Deals from Marshall's Contracting
How to Match Your Roofing & Siding, Clarksville, Maryland
The right exterior colors can drastically increase the curb appeal of your home. Design begins with your roofing and siding. Carefully matching or contrasting them adds plenty of more
4 Ways Trees Can Damage Your Roof, Clarksville, Maryland
Overhanging tree branches may provide shade and be an attractive feature to your home, but they can also create problems for roofing. It’s important to understand what to do if more
3 Types of Damage Caused By Roofing Leaks, Clarksville, Maryland
Your roof protects the interior of your home. As a result, even a seemingly minor roofing leak can have a range of negative effects, most of which are expensive to remedy. Here more
4 Benefits of Flat Roofing, Clarksville, Maryland
A roof is designed to provide a durable barrier against weather exposure and leaks. Flat roofing offers a number of advantages that will give you that much-needed protection more