A flat or low-slope roof presents unique challenges that pitched roofs don’t. Many commercial buildings and some residential additions in Longmont, CO use flat roof systems. Josh Brooks Construction and Renovation Inc. installs and repairs flat roofing systems that are specifically engineered for Colorado’s climate extremes.
Flat Roofing Systems We Install in Longmont
- TPO (Thermoplastic Polyolefin) — most popular flat roof membrane; heat-welded seams; energy efficient
- EPDM (Ethylene Propylene Diene Monomer) — rubber membrane; durable; cost-effective
- Modified Bitumen — torch-applied or self-adhering; proven performance in Colorado
- PVC Membrane — chemical resistant; excellent for commercial use
Unique Challenges of Flat Roofs in Colorado
Colorado’s temperature swings — from -10°F in winter to 100°F in summer — cause flat roofing membranes to expand and contract significantly. Snow accumulation and improper drainage are also common flat roof failure points. We size drains correctly and ensure proper slope for water evacuation.
Get a flat roof estimate at Josh Brooks Construction and Renovation Inc.
Data You Can Trust
Colorado Homeowners: The Numbers Behind Your Biggest Investment
$1.9B
Front Range hail damage May 2024
NOAA
3×
more likely to claim with roof 20+ yrs old
Insurance Data
96%
ROI on minor kitchen remodel
2025 Cost vs. Value
86%
basement finishing costs recovered
NAR / NARI
“Flat roofing contractor in Longmont — TPO, EPDM, and modified bitumen systems. I’ve been installing flat roofs since 2014 on commercial and residential projects.”
Josh Brooks
Licensed General Contractor CON-24-0152 | Northern Colorado Since 2014
Colorado hail & insurance: by the numbers (2026)
- Colorado ranks #2 in the U.S. for hail insurance claims, behind only Texas.
- The Front Range sits in “Hail Alley,” the highest frequency of large hail in North America — about 7–9 hail days a year.
- A Colorado state analysis (Feb 2026) found hail is 26–54% of the homeowners premium depending on county — roughly 50% along the Front Range.
- The average Colorado premium hit about $6,630 in 2026, up ~100.8% since 2020 — the largest increase of any state.
- Colorado typically sees 3–4 catastrophic hailstorms a year (each ≥ $25M in insured damage); severe season runs mid-April to mid-September.
Sources: Rocky Mountain Insurance Information Association (RMIIA); Colorado Division of Insurance (Feb 2026); National Weather Service; NAIC / Insurify (2026).


