EPDM & Flat Roofing in Berks County, PA — Rubber Membrane Done Right

EPDM single-ply rubber membrane is the workhorse system for flat and low-slope roofs — durable, proven, and cost-effective. Red Patch Roofing installs and repairs EPDM across Berks County: flat additions and porch roofs on residential homes, and low-slope commercial and mixed-use buildings. A flat roof fails differently than a pitched roof, and it needs a crew that treats it as its own discipline. We do.

Where EPDM Is the Right System


  • Flat residential additions. Rear additions, kitchens, enclosed sunrooms, and covered porches — the flat sections where water most often finds its way into an otherwise-pitched home.
  • Low-slope commercial buildings. Small-to-mid commercial structures and mixed-use properties.
  • Flat-roof replacement. Aging or failing built-up, modified-bitumen, or older membrane roofs replaced with new EPDM.
  • Flat-roof repair. Seam failures, flashing problems, drainage and ponding issues, membrane punctures.

Why Flat Roofs Fail — and How We Prevent It


On a flat roof, water does not run off — it sits and moves slowly toward the weakest point. Failures concentrate at seams, flashing details, penetrations, and low spots where water ponds. A flat roof installed well addresses every one of those:

  • Seams. Properly bonded, fully sealed seams — the single most common flat-roof failure point when done poorly.
  • Flashing. Membrane flashing at every wall, curb, penetration, and edge — detailed for long-term watertightness.
  • Drainage. Designed so water moves to drains or edges rather than ponding. Ponding accelerates membrane breakdown.
  • Membrane quality and thickness. Appropriate EPDM thickness for the application — not the thinnest product that technically works.
 Epdm Rubber Membrane Texture Seam Detail, Berks County.

How a Red Patch EPDM Roof Goes On


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Free assessment. Drone documentation, close-up of seams, flashing, and drainage; identification of ponding and problem areas.

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Written estimate. Line-item detail. The estimate is the contract.

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Tear-off / prep. Old roofing removed or prepped per the system; substrate inspected and corrected.

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Membrane install. EPDM membrane installed with properly bonded seams, full flashing detail at every penetration and edge, and drainage addressed.

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Drone documentation + cleanup. Before-and-after footage delivered to you. Site cleaned and swept.

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15-year labor warranty. In writing, transferable.

Frequently Asked Questions


How long does an EPDM roof last?

A properly installed EPDM membrane roof typically lasts 20–30 years in Berks County's climate, depending on membrane thickness, detailing quality, and maintenance.

My flat porch roof leaks but the main roof is fine — can you just do that section?

Yes. Flat additions and porch sections are commonly addressed on their own, or alongside a main-roof project in a single mobilization when the timing works.

What causes most flat-roof leaks?

Seams and flashing — not usually the field of the membrane. That is why seam bonding and flashing detail are where we focus quality.

Can you repair my existing flat roof instead of replacing it?

Often, yes — if the membrane is fundamentally sound and the problem is localized to seams, flashing, or a puncture. If the membrane has failed broadly, replacement is the honest answer, and we will tell you which situation you are in.

Get a Free EPDM / Flat Roofing Estimate


Drone inspection, written quote, exact arrival time. Repair or replacement — we give you the honest call.