Low-slope roofing systems engineered for durability, energy efficiency, and long-term performance.
Capital City Contractors installs flat roof, TPO, and EPDM roofing systems for commercial property owners and managers throughout Hyattsville, MD and the surrounding region.
Flat and low-slope roofs cover a large share of the commercial buildings we work on, from strip malls and warehouses to office parks and multi-family properties. These roof systems demand different materials and installation techniques than a residential asphalt shingle roof, which is why our crews specialize in TPO, EPDM, and modified bitumen systems designed specifically for low-slope applications.
This service is built for business owners, property managers, and commercial property owners who need a roof that handles ponding water, temperature swings, and heavy rooftop equipment without failing. Whether you’re replacing an aging roof or installing a new system on new construction, we design the roof around your building’s drainage, insulation needs, and budget.
We also work with property managers overseeing multiple commercial sites who need one roofing contractor who understands the unique demands of flat roof systems at scale.
Choosing the right membrane matters as much as the installation itself. TPO and EPDM each bring distinct advantages depending on your building’s exposure, HVAC layout, and long-term ownership plans.
Every flat roof installation starts with an assessment of the existing deck, insulation, and drainage plan. We identify low spots that contribute to ponding water and correct slope issues with tapered insulation before any membrane goes down, since a roof that drains poorly will fail early regardless of the material used on top.
For TPO installations, our crews use hot-air welding equipment to fuse seams into a single, continuous membrane rather than relying on adhesives or tape alone. EPDM installations use fully adhered or mechanically attached methods depending on the building’s structure and local wind load requirements, with seams sealed using manufacturer-approved primers and tape systems.
We flash every penetration, roof edge, and parapet wall to manufacturer specifications, since most flat roof leaks start at these transition points rather than in the open field of the membrane. Our team documents the entire installation and walks your property manager or ownership group through the finished system before we consider the job complete.
Here are answers to questions we hear often from commercial property owners considering a flat roof or membrane replacement.
How long does a TPO or EPDM roof installation take?
What's the difference between TPO and EPDM roofing?
Can you install a new flat roof over an existing one?
Do you handle roof drainage and ponding water issues?
Get a detailed, no-pressure assessment of your building’s roofing needs from a contractor who specializes in TPO and EPDM systems. Call our team today to schedule your commercial roof evaluation.
