TPO Roofing Installation Contractors
Our certified crews install new TPO membrane systems with mechanically attached or fully adhered assemblies, matching fastener patterns to calculated wind uplift zones across Denver's high-exposure corridor.
Denver & Front Range Roofers
Commercial TPO Roofing With Hot Air Welded Seams That Stay Watertight for Decades
TPO membrane performance in Denver depends on decisions made before installation: wind zone calculations, membrane thickness matched to rooftop traffic, and heat-welded seam quality control. Peak to Peak Roofing in Denver handles commercial TPO roofing services across the Front Range with core cuts, moisture mapping, and documented seam testing on every project, so the assembly meets the wind and hail exposure your building actually faces. TPO sheets reinforced with a polyester weave scrim resist tear propagation better than unreinforced membranes, and the white, gray, or tan surface options each carry different solar reflectance ratings that factor into Denver Energy Code cool roof compliance discussions.
- Free Xactimate Estimates
- BBB Accredited, A+ Rating (opens in a new tab)
- Owens Corning Platinum Preferred Contractor (opens in a new tab)
- GACO Certified
- Mule-Hide certified
4.9/5 average from 427 Google reviews
Certified, Accredited, And Reviewed
TPO Thickness and Attachment Options
Two TPO roofs can cost very differently and look identical from the ground. The variables that matter are membrane thickness and how the assembly is held down.
45 mil membrane
- What it means in plain words
- A mil is one thousandth of an inch, so this sheet is about as thick as a credit card is at its thinnest edge.
- Typical use
- Budget projects and short hold buildings.
- Trade off
- Least puncture resistance and the shortest warranty terms offered.
60 mil membrane
- What it means in plain words
- One third thicker than 45 mil.
- Typical use
- The most common specification on Front Range commercial buildings.
- Trade off
- Balanced cost and durability. The usual default.
80 mil membrane
- What it means in plain words
- Nearly twice the thickness of 45 mil.
- Typical use
- High traffic roofs, hail exposed sites, long hold assets.
- Trade off
- Highest material cost, best puncture and hail resistance, longest available warranties.
Mechanically attached
- What it means in plain words
- Screws and plates fasten the membrane through to the deck along seam lines.
- Typical use
- Fast, cost effective, most common.
- Trade off
- The membrane flutters under wind. Fastener pattern must match the wind uplift design.
Fully adhered
- What it means in plain words
- The entire sheet is glued to the substrate with no in field fasteners.
- Typical use
- Higher wind zones, exposed buildings, aesthetics.
- Trade off
- Costs more and takes longer to install, but delivers higher uplift performance and a smoother surface.
Ballasted
- What it means in plain words
- Loose laid membrane held down by river rock or pavers.
- Typical use
- Limited use on flat roofs with structural capacity for the weight.
- Trade off
- Rarely specified now. The ballast hides leaks and adds significant dead load.
| Specification | What it means in plain words | Typical use | Trade off |
|---|---|---|---|
| 45 mil membrane | A mil is one thousandth of an inch, so this sheet is about as thick as a credit card is at its thinnest edge. | Budget projects and short hold buildings. | Least puncture resistance and the shortest warranty terms offered. |
| 60 mil membrane | One third thicker than 45 mil. | The most common specification on Front Range commercial buildings. | Balanced cost and durability. The usual default. |
| 80 mil membrane | Nearly twice the thickness of 45 mil. | High traffic roofs, hail exposed sites, long hold assets. | Highest material cost, best puncture and hail resistance, longest available warranties. |
| Mechanically attached | Screws and plates fasten the membrane through to the deck along seam lines. | Fast, cost effective, most common. | The membrane flutters under wind. Fastener pattern must match the wind uplift design. |
| Fully adhered | The entire sheet is glued to the substrate with no in field fasteners. | Higher wind zones, exposed buildings, aesthetics. | Costs more and takes longer to install, but delivers higher uplift performance and a smoother surface. |
| Ballasted | Loose laid membrane held down by river rock or pavers. | Limited use on flat roofs with structural capacity for the weight. | Rarely specified now. The ballast hides leaks and adds significant dead load. |
TPO sheets are manufactured to ASTM D6878. Wind uplift assemblies are tested under FM 4470 or UL 580 and designed to the wind loads in ASCE 7 as referenced by the International Building Code. Warranty length depends on the specific manufacturer system, thickness and attachment, so we confirm terms in writing before installation.
What Building Owners and Managers Say
Real Google reviews from our Denver listing that mention TPO, flat roof, commercial or multi-building work. Quotes are trimmed for length, never reworded.
The Diagnostics Behind Every TPO Roofing Decision
TPO is a thermoplastic single-ply membrane joined with heat-welded seams, unlike EPDM systems that commonly use taped seams or modified bitumen assemblies with layered sheets. Evaluate membrane choice alongside insulation, drainage, attachment, rooftop traffic, and the manufacturer warranty rather than reflectivity alone. Substrate moisture, wind uplift zones, membrane thickness, and seam integrity determine whether a TPO system lasts twenty years or fails in five. Each factor gets measured and documented before installation, not assumed from a walk-through.
- 1. Core Cuts and Moisture Mapping Before Material Selection
- Wet insulation trapped under existing membrane compromises adhesion and voids manufacturer warranties. Infrared scans and physical core samples identify saturated zones requiring removal versus areas suitable for recover.
- 2. Wind Uplift Calculations Per ASCE 7 Exposure Category
- Denver's Front Range corridor sits in a high-wind zone where perimeter and corner attachment patterns differ from field areas. Fastener spacing follows calculated uplift pressures, not standard grid patterns.
- 3. Membrane Thickness and Cover Board Specification by Traffic Load
- Rooftop HVAC service paths need 80-mil membrane over a high-density cover board; low-traffic areas perform adequately at 60-mil. That specification sets the material list, and the bid is then built from the measured scope and current local material and labor costs.
- 4. Heat-Welded Seam Testing and Documentation
- Every seam gets probe-tested and recorded. Everett's building received a new TPO system with improved grading and new metal capping, and an engineer was brought in to confirm the assembly, because seam failure accounts for most premature TPO leaks.
Why Property Managers Choose Peak To Peak Roofing for TPO
Commercial property owners evaluate contractors on verifiable credentials and consistent installation quality. Peak To Peak Roofing maintains manufacturer certifications and industry standing that back every TPO warranty we register, across our full slate of commercial roofing work in Denver.
- A+ rating with the Better Business Bureau
- Owens Corning Platinum Award recognition for installation excellence
- Active member of the Colorado Roofing Association
- Member of the National Roofing Contractors Association
- 4.9 stars across 427 verified Google reviews
Complete TPO Roofing Services for Commercial Properties
Chris had two commercial roofs redone after the original systems failed early. Kim needed warranty documentation pulled together for ten condo buildings on a lending deadline. TPO work covers new construction, full replacement, targeted repair, and recover systems, and the right approach depends on what the diagnostics reveal about the existing assembly. Automated robotic welders run the long field seams on larger roofs while hand welders finish detail work at corners, curbs, and penetrations, and the switch between the two affects both schedule and seam consistency.
TPO Roof Replacement Specialists
We remove failed membrane systems down to deck, address saturated insulation, and rebuild with properly specified cover board and tapered polyiso to correct drainage before new membrane goes down, following the same standards used on every full commercial roof replacement we complete.
TPO Roof Repair and Maintenance Services
Our technicians heat-weld patches, rebuild flashings at penetrations, and reseal terminations using manufacturer-approved methods that keep existing warranties intact instead of voiding them with incompatible sealants, the same approach behind our dedicated commercial roof repair service.
TPO Recover and Overlay Contractors
We install recover systems over sound existing assemblies where core cuts confirm dry substrate, adding insulation value and a new membrane without the disposal cost and downtime of full tear-off.
Quality Standards Behind Every TPO Installation
TPO performance depends on details invisible after installation: weld temperature control, cover board attachment, and edge metal termination. The standards below govern every commercial TPO project we complete along the Front Range. The white membrane surface also typically qualifies TPO assemblies for Energy Star cool roof listing, a factor property managers raise when weighing rooftop cooling load alongside the structural standards below.
Four Standards That Determine TPO Longevity
ASTM D6878 Membrane Compliance: Verified membrane thickness and reinforcement scrim. Compare the specified thickness and cover board against HVAC service traffic, and ask where protective walkways are needed.
FM 4470 Assembly Approval: Attachment patterns matched to approved assemblies. Check field, perimeter, and corner requirements together with deck condition, polyiso or ISO board R-value, and the proposed recover or tear-off approach.
Heat-Welded Seam Quality Assurance: Probe testing and documented weld temperatures. Ask how weld samples and manufacturer inspections support the proposed coverage, and distinguish NDL, material-only, and workmanship warranties.
ANSI/SPRI ES-1 Edge Metal: Tested perimeter terminations resist wind uplift. Review parapet flashings, RTU curbs, and tapered insulation around drains so the heat-welded field membrane is not the only detail addressed.
Denver Calvary had a portion of their church building replaced to these same standards, and the review says the response was quick and the care was there. Skipping the seam documentation looks identical on day one and costs the owner the warranty on the day the claim gets filed. Enrolling in our roof maintenance programs keeps that documentation current between inspections.
TPO Roofing Questions Property Managers Ask
The questions that matter most are rarely about the membrane brand. They are about substrate condition, insulation value, and whether the installation crew documents the work well enough for the warranty to survive a claim.
- How long does a commercial TPO installation take?
- Most Denver commercial TPO projects run one to three weeks depending on square footage, tear-off scope, and deck repairs discovered after removal. Weather windows and rooftop equipment coordination extend timelines on occupied buildings.
- How do I choose between 60-mil and 80-mil membrane?
- Traffic load drives the decision. Rooftops with regular HVAC service, frequent inspections, or heavy equipment need 80-mil membrane over a high-density cover board. Low-traffic warehouse roofs perform well at 60-mil with proper walkway pads at access points.
- What makes TPO a better fit than EPDM for Denver buildings?
- TPO's reflective white surface reduces cooling load at altitude where UV intensity is high, and heat-welded seams outperform EPDM's taped seams under thermal cycling. EPDM still wins on puncture resistance for roofs with heavy foot traffic.
Service Area Coverage
Peak To Peak Roofing provides commercial TPO roofing services throughout Denver and the surrounding communities, working directly at your property. The service area spans Denver, Aurora, Littleton, and Castle Pines, reached via I-25, I-70, C-470, and E-470. Crews coordinate around tenant schedules and business hours to keep operations running during installation.
- Serving Denver, Aurora, Littleton, Castle Pines, Parker, Thornton, Arvada, and Broomfield
- Accessible via I-25, I-70, C-470, E-470, and US-36 across the Front Range
- Mobile crews reaching commercial properties throughout the Denver metro area
- Providing Commercial TPO Roofing Services directly at your facility
Peak To Peak Roofing schedules TPO installation and repair work throughout Denver and surrounding areas, coordinating directly with facility managers to limit disruption to daily operations.
Frequently Asked Questions
JJ Hedden
Founder & Owner
Meet The Owner
JJ Hedden, Founder & Owner
JJ Hedden founded Peak to Peak Roofing & Exteriors so Front Range property owners would have a roofer who is still reachable after the truck pulls away. He came up through inspections, claims and installations, so the standards our crews work to are the ones he set on roofs himself.
On commercial work he stays close to the details that cost building owners money later: seam and membrane quality, drainage and ponding, curb and penetration flashing, and a schedule that keeps the tenants working while the crew is on the roof.
- Roofing Colorado since 2008
- Reviews commercial scopes personally
- Drainage and detailing checked on site
- Family owned, Denver based
Credentials You Can Check Yourself
BBB Accredited, A+ rating
Peak to Peak Roofing and Exteriors, LLC has been BBB Accredited since January 2010.
View the BBB business profileColorado Roofing Association member
Listed as a contractor member, with JJ Hedden named as owner.
View the CRA member listingLiability and workers' comp on file
General liability and workers' compensation are two separate policies. Ask for a current certificate of insurance before work starts.
See coverage dates on the CRA listingLocal contractor licensing
Colorado has no statewide roofing license. Licensing and permits are set by each city or county, so ask which applies to your address.
TPO Systems Since 2008
TPO Installed To The Detail That Actually Leaks.
Hot-air welded seams, probe-tested laps, and properly terminated edge metal. The membrane rarely fails first, the details do.
Seam Probe TestingManufacturer Warranty Options
4.9/5 from happy homeowners
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"Peak to Peak was great, they helped me with a repair on my roof. Helped me to extend the life of my roof."
- Luke Howard