Strong Contractors serves Longmont and the Boulder & Weld County corridor with self-performed commercial roofing for tech, industrial, and commercial facilities. High-altitude UV and Front Range hail define Longmont’s roofing demands. Every system we specify accounts for these conditions.
Commercial Roofing in Longmont

Longmont’s Trusted Commercial Roofing Contractor
Longmont Climate At A Glance
- Commercial & Industrial Roofing
- Fluid Applied Roof Systems
- Industrial Coatings
- Specialized Services
Commercial & Industrial Roofing
A commercial roof is a major building asset, and the right solution depends on more than the system that is already in place. Condition, moisture, drainage, insulation, facility operations, budget, warranty requirements, and long-term plans for the property all influence whether repair, restoration, retrofit, or replacement provides the best value.
Strong Contractors brings experience across virtually every major commercial roofing system, along with waterproofing, coatings, spray polyurethane foam, restoration, repair, and specialized services. That breadth allows us to execute projects designed to established plans and specifications or work with owners, engineers, and consultants to evaluate options and determine the most practical path forward for the facility.
- TPO Roofing Systems
- EPDM Roofing
- PVC Roofing Systems
- Metal Roofing & Retrofits
- Built-Up Roofing (BUR)
- Modified Bitumen Roofing

Fluid Applied Roof Systems
Fluid-applied roofing systems can be an effective way to restore and extend the service life of an existing roof without automatically moving to a full tear-off and replacement. When the existing assembly is a suitable candidate, these systems can address difficult transitions, penetrations, drainage conditions, and irregular roof geometry while creating a seamless, fully adhered protective surface.
Strong Contractors is an SPFA Accredited Contractor with extensive training and experience in spray polyurethane foam (SPF) and fluid-applied roofing systems. These systems depend heavily on proper substrate preparation, application thickness, detailing, environmental conditions, and quality control, which makes contractor experience and technical training especially important to long-term performance.

Industrial Coatings
Industrial coating systems help protect concrete, steel, and other substrates exposed to moisture, corrosion, chemicals, abrasion, and demanding operating conditions. These systems are commonly used on tanks, containment areas, concrete surfaces, structural components, and other specialized areas where durability and long-term protection are critical.
Selecting the right coating depends on the substrate, existing surface condition, service environment, chemical exposure, and expected performance of the finished system. Strong Contractors installs protective coating systems for commercial and industrial facilities, with careful attention to surface preparation, application conditions, product compatibility, and quality control—factors that directly affect adhesion, durability, and long-term performance.

Specialized Services
For Colorado facilities, Strong Contractors provides emergency roof repair and ongoing maintenance plans to address active issues, reduce recurring problems, and help owners stay ahead of larger roofing failures. Strategic repairs and maintenance can extend the useful life of an existing roof, help bridge the time until a larger capital project is planned, and support manufacturer warranty requirements where ongoing maintenance is required.
Strong Contractors also provides specialized building-envelope services, including air and vapor barrier systems and below-grade waterproofing. Our experience includes large-scale industrial and complex new-construction scopes where sequencing, access, detailing, and coordination are critical.
- Air & Vapor Barrier Systems
- Below-Grade Waterproofing
- Ballast Removal
- Emergency Roof Repair (Colorado Only)

Why Longmont Chooses Strong

- Self-Performed CrewsWe don’t subcontract. Every roofer on your project is a Strong Contractors employee — trained, insured, and accountable to our quality standards.
- Manufacturer CertificationsCarlisle, Firestone, GAF, and Tremco certified installer with full NDL and system warranty access.
- Tech & Industrial ExperienceExperienced specifying high-performance systems for Longmont’s growing tech and light-industrial base.
Longmont Areas & Districts
Longmont Roofing Questions
What roof suits a Longmont manufacturing or clean production facility?
Production buildings need a roof that protects equipment and keeps contaminants out. Fully adhered TPO or PVC systems leave a smooth, cleanable surface, and PVC handles exhaust residue well. We plan work around production schedules, protect air intakes, and coordinate any equipment shutdowns with plant engineers. Every detail is photographed for the facility’s records.
What should an insurance-ready roof inspection include?
Your adjuster and consultant need facts, not estimates. A useful inspection records the date of loss, hail size indicators on soft metals and vents, membrane and seam condition, and moisture readings or test cuts where damage is suspected. Photos should tie each finding to a roof location. A baseline inspection before storm season makes the comparison clearer afterward.
Do county rules change a Longmont roof project?
Longmont issues its own building permits, so most commercial roof work inside city limits goes through the city. Properties outside city limits answer to the county instead. We confirm which authority applies, and what it requires for wind, snow, and energy, before the design is final.
Is TPO or EPDM better for a Longmont flex building?
Both are proven. TPO is white and reflective, which lowers summer cooling loads, and its heat-welded seams are strong and testable. EPDM has a long record in cold climates and handles hail well in thicker grades, but its seams are taped or adhered rather than welded. Your building’s use, budget, and energy goals decide which fits better.







