Flat Roof Systems


EPDM and TPO membrane roofing - durable, watertight solutions for flat and low-slope surfaces on your home or property.

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Flat Roof Systems

EPDM Rubber Roofing


If your home has a flat or low-slope roof section — think garage roofs, porch covers, additions, or sunroom tops — EPDM is one of the most reliable and long-lasting solutions available. EPDM (ethylene propylene diene monomer) is a durable synthetic rubber membrane that forms a seamless, watertight barrier that stands up to UV exposure, temperature extremes, and heavy rain.


With a lifespan of 20–30 years when properly installed, EPDM is a smart, cost-effective choice for any flat or low-pitch surface on your home. ITM Exterior Solutions installs EPDM roofing with precision — from proper substrate prep to clean, sealed edges — so you get a roof that protects your home for decades.


  • Lifespan of 20–30 years
  • Resistant to UV rays, ozone, and extreme temperatures
  • Seamless watertight membrane — no exposed seams
  • Ideal for garages, additions, porch covers, and sunrooms
  • Low maintenance and cost-effective
  • Available in black (standard) or white (reflective)
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Flat Roof Systems

TPO Membrane Roofing


TPO (thermoplastic polyolefin) is a single-ply white membrane roofing system designed for flat and low-slope surfaces — think garages, home additions, porch covers, and sunrooms. Its seams are heat-welded together, creating a strong, watertight bond that resists UV rays, ponding water, and temperature swings.


The biggest difference between TPO and EPDM comes down to color and energy efficiency. While EPDM is a black rubber membrane that absorbs heat, TPO's bright white reflective surface deflects sunlight — which can help lower your cooling costs during hot Indiana summers. TPO also tends to have a cleaner, more finished appearance when installed. With a lifespan of 15–25 years and minimal maintenance required, TPO is a smart upgrade for any flat roof section on your home.


  • Lifespan of 15–25 years
  • White reflective surface — reduces cooling costs
  • Heat-welded seams for maximum watertight performance
  • Resistant to UV rays, ponding water, and temperature fluctuations
  • Clean, modern finished appearance
  • Ideal for garages, additions, porch covers, and sunrooms
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EPDM vs. TPO — Side-by-Side Comparison

Not sure which system is right for your home? Here's how they stack up.


Feature EPDM Rubber Roofing TPO Membrane Roofing
Lifespan 20–30 years 15–25 years
Color Black (standard) or White White (reflective)
Energy Efficiency Standard Higher — reflects sunlight
Seam Method Adhesive or tape Heat-welded (stronger bond)
Maintenance Low Very low
UV Resistance Excellent Excellent
Best For Cost-effective flat roofing Energy-conscious homeowners
Price Point Affordable Slightly higher

Not Sure Which System Is Right for You?

We'll inspect your flat roof for free and recommend the best solution for your home and budget.


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