Flat / Low-Pitch Roofs
(EPDM, TPO, Gaco, etc.)
EPDM Roof System
EPDM (ethylene propylene diene monomer) is a synthetic rubber single-ply membrane used for low-slope and flat roofs, known for its durability, resistance to weathering and UV rays, and a lifespan of up to 50 years. It is cost-effective and easy to install.
EPDM is available in thicknesses like 45, 60, or 90 mil, and can be black or white, with white options helping to increase energy efficiency.
Material: A durable synthetic rubber membrane
Common use: Primarily for low-slope and flat commercial roofs, but also used for carports and patios.
Installation: A single-ply membrane that is lightweight and can be installed year-round because it remains flexible in cold temperatures.
Durability and lifespan: A properly maintained EPDM roof can last up to 50 years or more.
Maintenance: Requires maintenance checking for debris to prevent dirt buildup and ponding of water. Twice-yearly inspections is recommended for the longevity of your roofs lifespan.
Common Installation Methods
EPDM can be installed using one of three primary methods, depending on the building's structure and needs:
- Fully Adhered The membrane is glued directly to the insulation layer or roof deck using a specialized bonding adhesive. This method provides high wind uplift resistance and is ideal for complex roof shapes.
- Mechanically Attached The membrane is secured to the roof deck using mechanical fasteners and plates. This is a quicker and more cost-effective option for larger roofs and is less affected by weather during installation.
- Ballasted The EPDM membrane is laid loose over the roof deck and held in place by a layer of smooth river rock or concrete pavers. This is the most economical method and the weight of the ballast provides added protection against weather and UV rays.
TPO Roof System
TPO (thermoplastic polyolefin) is a single-ply, white, reflective roofing membrane for low-slope roofs known for being durable, energy-efficient, and cost-effective. Its heat-welded seams create a strong, watertight seal, and the material is resistant to UV, punctures, and tears.
Common benefits include lower cooling costs due to reflectivity, long-term durability, and easy installation and repair
Material: TPO is a blend of polypropylene and ethylene-propylene rubber.
Durability: It is resistant to tears, punctures, and UV radiation, with a lifespan of around 15 to 30 years.
Seams: Seams are heat-welded together, creating a molecular bond that is stronger than the membrane itself, preventing leaks.
Installation: It can be installed using various methods, including mechanically attached or fully adhered, and is generally easier and faster to install than other systems.
Maintenance: Requires maintenance checking for debris to prevent dirt buildup and ponding of water. Twice-yearly inspections is recommended for the longevity of your roofs lifespan.
Gaco Roof coatings
Gaco roof coating is a 100% silicone coating applied to existing roofs to create a seamless, waterproof, and durable membrane Gaco coatings are known for their ability to extend the life of a roof, prevent costly tear-offs
Material: A 100% silicone coating designed to form a seamless, waterproof barrier. Photos: Already on website / Sending new
Durability: It maintains its flexibility and adhesion through extreme temperatures and will not degrade, crack, or peel under harsh UV rays.
Cost savings: Applying Gaco can extend the life of your current roof, delaying or avoiding a full and costly replacement.
Maintenance: Requires maintenance checking for debris to prevent dirt buildup and ponding of water. Twice-yearly inspections is recommended for the longevity of your roofs lifespan.
Performance in Ponding Water: A key advantage is its ability to withstand permanent ponding water without softening, bubbling, or degrading, making it ideal for flat roofs where water can pool.
Roofing FAQs – Answers You Can Trust
See some common questions and answers below, or call us at (315) 297-4084.
WHY CHOOSE OVER THE TOP ROOFING
Michael Majeski founded Over the Top Roofing back in 1998. At Over The Top Roofing, we take great pride in our excellent workmanship, customer service, competitive pricing, and the ability to deliver outstanding results.
20+ YEARS OF QUALITY CRAFTSMANSHIP
With decades of experience, our team brings strong workmanship and attention to detail to every project — big or small. From repairs to full builds, we get the job done right.
TOP-GRADE MATERIALS & LONG-LASTING RESULTS
We use reliable products built to withstand harsh Upstate NY weather and stand the test of time. Quality in means quality out — delivering durability, comfort, and curb appeal you can feel good about.
FULL-SERVICE HOME IMPROVEMENT SUPPORT
More than just roofing. We handle replacements, repairs, and upgrades across siding, windows, doors, decks, gutters, remodeling, snow/ice removal and more — plus 24-hour emergency service when you need us most.
GAF - Certified TM status is only offered to about 5% of roofing contractors in North America. Those who have earned this designation have exhibited an uncompromising commitment to the highest standards in sales, service, and installation and are authorized to offer the GAF Weather Stopper System Plus Ltd. Warranty. These contractors have pledged to ensure that each customer receives the best choice in roofing.
