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Flat Roof Maintenance Tips for Surviving Philadelphia Winters

March 21, 2025

Flat Roof Winter Maintenance

Philadelphia winters can be brutal on homes, especially those with flat roofs. At Sterner Brothers Roofing, we know firsthand how ice, snow, and temperature swings can wreak havoc on residential flat roofing systems. That’s why we’ve put together this essential guide to help homeowners keep their flat roofs in top shape all winter long.


1. Inspect Your Roof Before the First Snowfall

Before winter really kicks in, have a professional roof inspection. Small issues like cracked membranes, loose flashing, or pooling water can become major problems under heavy snow.

Tip: Schedule a seasonal inspection with Sterner Brothers Roofing—we’ll identify vulnerabilities before the weather does.

2. Keep Gutters and Drains Clear

Flat roofs rely heavily on proper drainage. Clogged gutters or scuppers can trap melting snow, causing water to freeze and expand—leading to leaks or roof damage.

Pro Tip: After every storm, do a visual check (from the ground) or hire us to safely remove debris from your drainage system.

3. Watch for Ice Dams

Ice dams aren't just a pitched roof problem. On flat roofs, they can form near edges and block drainage, allowing water to seep into your home.

What to do: Ensure your attic is properly insulated to prevent heat loss, and consider heat cables as a preventive measure.

4. Remove Snow Buildup Safely

Excess snow can stress your roof structure. If snowfall exceeds 6 inches, it’s time to safely clear it off—preferably with help from professionals.

Safety note: Never use sharp tools or salt; these can damage your roof’s membrane.

5. Seal and Insulate

Make sure your flat roof is well-sealed, especially around vents, skylights, and flashing. A properly insulated attic keeps warm air inside, reducing snow melt and the risk of ice dams.

At Sterner Brothers Roofing, we offer winterization services tailored for Philadelphia homeowners.

5. Seal and Insulate

Make sure your flat roof is well-sealed, especially around vents, skylights, and flashing. A properly insulated attic keeps warm air inside, reducing snow melt and the risk of ice dams.

At Sterner Brothers Roofing, we offer winterization services tailored for Philadelphia homeowners.

6. Don’t Ignore Small Leaks

If you notice signs of water inside—like stains, peeling paint, or musty odors—call us right away. Even minor leaks can escalate quickly in freezing conditions.


Why Winter Maintenance Matters

Flat roofs are efficient and stylish, but they require seasonal upkeep—especially in cities like Philadelphia where weather conditions can turn severe. Proactive maintenance not only protects your home but can also extend your roof’s lifespan by years.


Let Sterner Brothers Roofing Handle It

We’ve been helping Philadelphia homeowners protect their flat roofs for years. Whether you need a winter inspection, snow removal, or emergency repairs, Sterner Brothers Roofing is your go-to roofing expert.

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