Membrane systems
Commercial roof systems we install in Glen Carbon
EPDM (Rubber)
25-35 years
Black synthetic rubber sheet — proven since the 1970s. Lower reflectivity than TPO but excellent cold-weather flexibility. Seams are glue or tape-adhered. Common on older buildings still being re-roofed rather than torn off.
Built-Up Roofing (BUR)
20-30 years
Multiple layers of asphalt-impregnated felt topped with gravel or cap sheet. The traditional commercial roof. Heavier and slower to install than single-ply, but still the right call on roofs with heavy HVAC foot traffic.
PVC (Polyvinyl Chloride)
25-35 years
Premium single-ply with heat-welded seams and strong chemical resistance. The right call for restaurants (kitchen exhaust grease) and manufacturing facilities where membrane chemistry matters.
Building types
Common Glen Carbon commercial roof projects
Church and institutional buildings
Mixed-pitch roofs with flat tie-ins over additions. Membrane-to-shingle transitions are where most leaks originate.
Industrial-corridor warehouses
The Earth City, Hazelwood, and Metro East industrial belts are dominated by tilt-up concrete buildings with TPO or EPDM roofs installed 1995-2010. Most are now due for replacement or serious restoration.
Strip centers and retail plazas
South-county and St. Charles County retail developments typically run 40,000-80,000 sq ft under a single membrane. Re-roofs happen in phases around existing tenants.
Flat-roof bungalows and two-families
South City and Baden-area bungalows often have small flat-roof sections over additions or porches. TPO is the modern replacement spec for these.
Maintenance schedule
Preventive maintenance for Glen Carbon commercial roofs
Twice yearly (spring + fall)
Walk inspection, drain and scupper clearing, seam and flashing inspection, debris removal, ponding-water check.
After any major storm
Emergency walk, photo documentation, temporary patch of any punctures or seam separations, insurance claim trigger if damage found.
Every 3-5 years
Infrared moisture survey to map wet insulation, core samples in suspected areas, seam-probing test, caulk and pitch-pan rework.
Every 10 years (mid-life)
Restoration coating (acrylic or silicone) to extend service life by 10-15 years before full replacement is needed.
Nearby
Commercial roofing in nearby Saint Louis cities
FAQ
Glen Carbon commercial roofing questions
What does a commercial roof replacement cost in Glen Carbon, IL?
Commercial TPO or EPDM replacement in Glen Carbon runs roughly $8-$14 per square foot installed depending on substrate, slope, insulation thickness, and tear-off versus re-roof. A 20,000 sq ft warehouse roof typically lands in the $160,000-$280,000 range. For a flat-roof residential section, expect $25,500 - $32,000 on a typical 2,100 sq ft home.
How long does a commercial flat roof last in Saint Louis?
Service life depends on the system and the maintenance program. In Saint Louis: TPO runs 20-30 years, EPDM 25-35 years, PVC 25-35 years, and BUR 20-30 years. Documented semi-annual maintenance typically adds 4-7 years to any system by catching seam failures before they become substrate failures.
Do you offer preventive maintenance contracts for Glen Carbon buildings?
Yes. We offer semi-annual inspection and maintenance contracts for Glen Carbon commercial properties — two scheduled visits per year, post-storm emergency walks, written inspection reports with photos, and priority dispatch for any leaks. Standard pricing runs $0.05-$0.10 per square foot annually depending on building size and access.