Specification, installation, and replacement for low-slope commercial roofs
Need a quote or a second opinion on a specification? Reach out to us today and get an estimate or have any of your questions answered!
We install low-slope commercial roofing across the Denver metro, working with the two dominant single-ply systems: EPDM and TPO. Which one suits a building depends on roof size, foot traffic, rooftop equipment, and whether reflectivity is a priority. We will walk through that with you before specifying.
We’re a GAF-certified, licensed, and insured commercial roofing contractor, and we’ve installed exterior systems across the Denver metro since 1999. On commercial work, we provide a formal specification review before any installation begins, coordinate around your building’s occupancy and operating hours, and give you a single point of contact from bid through completion. Every project includes both the manufacturer’s system warranty and our own workmanship warranty, with full terms provided before work starts.
A vulcanized synthetic rubber membrane is the most widely used low-slope roofing system worldwide. Because it is fully cured at the factory, it has no shelf life, and its properties stay stable over time, which also makes field repairs straightforward.
A single-ply reflective membrane, installed fully adhered or mechanically attached, with the white surface left exposed for the life of the roof. Resists mold, dirt pickup, tears, and punctures while flexing with building movement.
Smooth TPO: The standard specification for new construction and re-roofing. Strong seam welds, good puncture resistance, and reliable long-term weathering at a lower cost point.
Extreme TPO: Formulated for better resistance to heat aging and UV degradation, with warranty terms available up to 35 years, depending on thickness and system specification. A highly reflective, emissive white surface can help reduce cooling costs and counter the urban heat island effect.
Whether you’re specifying a new roof or replacing an aging one, GS Exterior Experts brings the same EPDM and TPO expertise to buildings of every size across the Denver metro.
We provide a formal specification review before any work begins, and we’ll walk you through which system fits your building, budget, and timeline.
We install commercial roofing systems, including EPDM and TPO, for qualifying commercial and multifamily properties. We evaluate the roof design, drainage, existing assembly, insulation needs, and building requirements before recommending a system.
EPDM is a synthetic rubber membrane known for flexibility and long-term performance. TPO is a thermoplastic membrane with a reflective surface that can help reduce heat absorption. The appropriate system depends on the building, roof configuration, performance goals, and manufacturer requirements.
A properly installed and maintained single-ply commercial roof can provide decades of service. Still, its lifespan varies by membrane type and thickness, installation method, drainage, maintenance, weather exposure, and rooftop activity. Manufacturer warranties also differ by system and project specifications.
Repair may be appropriate when damage is limited, and the membrane, insulation, and roof deck remain in serviceable condition. Replacement may be recommended when there is widespread deterioration, recurring moisture intrusion, saturated insulation, or a roof approaching the end of its service life.
Commercial roofing costs depend on roof size, membrane selection and thickness, insulation, drainage, penetrations, installation method, tear-off requirements, access, and the condition of the roof deck. We assess these factors and provide a project-specific estimate.
