Flat roofs are a popular choice for both commercial buildings and residential properties in New Jersey. They offer a modern look, additional usable space, and easier access for maintenance. However, they also require specialized care to prevent issues like ponding water, leaks, or membrane damage.
At All State Roofing & Chimney, we’ve repaired, maintained, and replaced hundreds of flat roofs across NJ. In this guide, we’ll walk you through how to properly care for a flat roof, what to watch out for, and when to call a roofing professional.
Need help today? Call (862) 295-7864 or get a free estimate online.
Why Flat Roofs Need Unique Attention
Unlike pitched roofs that shed water naturally, flat roofs have a minimal slope. This makes them more prone to water pooling, debris accumulation, and weather-related wear. Without regular inspection and maintenance, even a small issue can turn into a major repair.
Common Flat Roofing Materials in NJ
Before we dive into maintenance, it’s important to know what type of flat roofing you have:
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EPDM (Rubber Roofing): Durable and flexible, ideal for colder climates.
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TPO (Thermoplastic Polyolefin): Reflective and energy-efficient.
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PVC (Polyvinyl Chloride): UV-resistant and waterproof.
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Modified Bitumen: Asphalt-based, often used in layered systems.
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Built-Up Roofing (BUR): Multiple layers of tar and gravel.
Each material requires slightly different care, but the principles of maintenance are generally the same.
Flat Roof Care: Essential Maintenance Tips
1. Inspect the Roof Regularly
Flat roofs should be inspected at least twice a year—once in the spring and once in the fall—and after any major storm.
What to look for:
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Blisters or cracks in the membrane
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Pooled or standing water
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Loose flashing or edge damage
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Signs of mold or algae
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Debris accumulation
At All State Roofing & Chimney, we offer free seasonal inspections to help NJ homeowners catch issues early.
2. Keep the Roof Clean
Leaves, branches, and other debris can block drains and lead to ponding water. Regular cleaning helps maintain proper drainage and prolongs the life of the membrane.
Tip: Use a soft broom or blower to avoid puncturing the surface.
3. Maintain Drainage Systems
Flat roofs often have internal drains, scuppers, or gutters. These need to be kept clear to prevent water backup and structural damage.
Warning Sign: If you notice water pooling for more than 48 hours after rain, it’s time to inspect your drainage system.
4. Trim Overhanging Trees
Falling branches can puncture or damage the membrane. Overhanging limbs also drop leaves that clog drains and promote mold growth.
Have trees trimmed back regularly—especially in late spring and fall.
5. Seal Cracks and Blisters Early
Small cracks in your roof’s surface can grow quickly if ignored. If you see bubbling, blistering, or lifting seams, have them resealed promptly.
Need help? Schedule a free flat roof inspection here.
6. Avoid Heavy Foot Traffic
Flat roofs are accessible—but they aren’t meant for constant walking. Only trained professionals should walk on the roof for inspection or repair. If access is needed, walk pads or decking can be installed to minimize damage.
7. Monitor the Interior Ceilings
Signs of trouble on the roof often show up indoors first.
Red flags:
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Water stains on ceilings or walls
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Bubbling paint
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Musty odors
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Mold or mildew
If you notice any of these, your flat roof may already be compromised.
Warning Signs Your Flat Roof May Need Repair or Replacement
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Standing water that doesn’t drain
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Cracks, splits, or open seams in the membrane
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Bubbling or blistering on the surface
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Water leaking into the building
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Sagging roof deck
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Mold growth or persistent odors indoors
If you see any of these signs, call All State Roofing & Chimney at (862) 295-7864 for a thorough inspection.
Flat Roof Lifespan & When to Replace
Most flat roofs last 15 to 25 years, depending on the material, installation quality, and maintenance. If your roof is approaching the end of its lifespan—or has had repeated repairs—it may be more cost-effective to replace it.
We offer a variety of durable, energy-efficient flat roofing systems with strong warranties and professional installation across New Jersey.
Why Choose All State Roofing & Chimney?
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Over 20 years of experience with flat roofs in NJ
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Licensed, insured, and locally trusted
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Free inspections and honest recommendations
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Skilled in EPDM, TPO, PVC, BUR, and modified bitumen
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✅24/7 emergency roofing service available
Call us now at tel:8622957864 or
Request your free quote online
FAQs About Flat Roofs
How often should I inspect my flat roof?
Twice a year (spring and fall) and after any major storm.
How long do flat roofs last in New Jersey?
Typically 15–25 years depending on materials and maintenance.
What causes flat roof leaks?
Poor drainage, weather damage, foot traffic, or aging membrane are common causes.
Can flat roofs be repaired or must they be replaced?
Minor issues can often be repaired. Widespread or structural damage usually requires replacement.
Final Thoughts
Flat roofs are efficient, durable, and cost-effective—but they require routine care to stay in top condition. From regular inspections to keeping drains clear and catching damage early, proactive maintenance can save you thousands in repairs and replacements.
At All State Roofing & Chimney, we specialize in flat roof care across New Jersey. Whether you need an inspection, repair, or full replacement, we’re ready to help.
Ready to Protect Your Flat Roof?
Call All State Roofing & Chimney at tel:8622957864
Get your free flat roof estimate today
Serving homeowners and businesses across New Jersey
