Commercial roofing in Arnold, MO
Warehouses, strip centers, and industrial buildings in Arnold share one thing: the roof is invisible until it leaks. Our commercial team inspects on a scheduled cadence, catches seam failures before they become insurance claims, and replaces membranes on a planned capital schedule rather than an emergency one.
Membrane systems
Commercial roof systems we install in Arnold
TPO (Thermoplastic Polyolefin)
20-30 years
The most-installed single-ply commercial membrane in the US. White reflective surface cuts cooling loads. Seams are heat-welded — when done right, they outlast the rest of the membrane. Best default choice for warehouses, strip centers, and flat-roof residential.
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.
Building types
Common Arnold commercial roof projects
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.
Manufacturing and light industrial
North County and the Metro East have significant 1960s-80s manufacturing stock — BUR is still the spec here when HVAC footprint is heavy.
Maintenance schedule
Preventive maintenance for Arnold 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
Arnold commercial roofing questions
What does a commercial roof replacement cost in Arnold, MO?
Commercial TPO or EPDM replacement in Arnold 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 $21,500 - $27,500 on a typical 1,900 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 Arnold buildings?
Yes. We offer semi-annual inspection and maintenance contracts for Arnold 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.