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Commercial Roofing · Colorado Front Range
Understand how EPDM works, how it fails, and when repair, restoration, or replacement actually makes sense.
An interactive guide for building owners, facility managers, and HOA and multi-family boards. Roofing is a system, not a commodity. We’re consultant first, contractor second.
01 Roof assembly
EPDM (ethylene propylene diene monomer) is a synthetic rubber membrane installed in large sheets and joined with seam tape and primer. The membrane is the part you see, but the roof performs as an assembly. Select a layer to lift it out and see what we check.
Why this layer matters: the membrane is the primary waterproofing layer. EPDM sheets are joined with seam tape and primer, so seam quality is one of the biggest factors in how long the roof lasts.
What Blue Peaks checks
Common failure signs
Blue Peaks approach: before recommending replacement, we determine whether the problem is isolated, whether moisture is trapped below the membrane, whether drainage needs correction, or whether the roof is failing as a complete system.
02 Diagnostics
Select a condition to see where it shows up on a typical commercial roof, what you may notice, and what we inspect before recommending EPDM roof repair or replacement.
Condition
EPDM sheets are joined with seam tape and primer. When a lap loses adhesion, water can travel under the membrane at the seam.
What you may notice
What we inspect
Typical next step: localized repair may be possible if the rest of the roof is sound.
03 Specification
An EPDM proposal should tell you more than the membrane brand. Thickness, membrane type, color, and attachment all affect durability, wind performance, hail exposure, energy use, and long-term cost.
60 mil · 1.5 mmRendered sample · thickness exaggerated for clarityA common commercial specification that balances material cost and durability.
No thickness is universally best. The right choice depends on hail exposure, rooftop traffic, how long you plan to own the building, and budget.
Non-reinforcedRendered sample · edge detail enlargedA homogeneous rubber sheet. Common in fully adhered and ballasted systems, where the membrane isn’t carrying fastener loads at the seams.
Black EPDMRendered roof section · illustrativeBars are relative, not measured values. Energy code or cool-roof rules can apply to some buildings; we confirm them for your address and building size.
Bonding adhesive · full coverageRendered cutaway · illustrative04 Colorado hail
EPDM is flexible rubber, so after a Front Range hailstorm the surface can look fine while the layers below tell a different story. Move the slider to look beneath the membrane.
Step 01 · Surface
Rubber flexes on impact. From the ground, or even on the roof, you may only see faint scuffs or bruising, if anything.
05 Inspect this roof
Most leaks start at details, not in the open field of the membrane. Select a point on the roof to see why it matters and what we check.
06 30-second roof check
Four quick questions give you a starting point before an inspection. No contact info required.
07 Compare systems
Each single-ply membrane fits different buildings. Select a system to focus on it. There’s no universal winner; the right choice depends on the building, its use, and its exposure.
| Category | EPDM | TPO | PVC |
|---|---|---|---|
| Material | Synthetic rubber | Thermoplastic polyolefin | Polyvinyl chloride (thermoplastic) |
| Seams | Seam tape and primer | Hot-air welded | Hot-air welded |
| Common color | Black; white available | White | White |
| Cold-weather flexibility | Stays very flexible in cold | Flexible; stiffer than EPDM in cold | Flexible; stiffer than EPDM in cold |
| Grease & chemical resistance | Degraded by oils, grease, and petroleum products | Moderate | Strong resistance to many greases and chemicals |
| Common fit | Low-slope roofs where flexibility and a long track record matter; repairs and additions on existing EPDM | Retail, office, and warehouse roofs where reflectivity and welded seams matter | Restaurants and buildings with kitchen exhaust or chemical exposure |
| Colorado considerations | Handles freeze-thaw movement well; seams and flashings need attention; hail can damage layers below | Reflective surface for high-altitude sun; thickness and cover board matter for hail | Chemical resistance where needed; typically a higher material cost |
On phones, use the buttons above to switch between systems.
08 Consultant first. Contractor second.
Instead of starting with which membrane we can sell, we start with the building, the roof condition, and the evidence.
01
We walk the full roof, and the underside of the deck where it’s accessible.
02
Photos, measurements, and marked-up findings you can share with owners and boards.
03
Core cuts or moisture evaluation when the condition below the membrane matters.
04
Repair, restoration, and replacement, with the trade-offs explained plainly.
05
Membrane, thickness, attachment, insulation, cover board, drainage, and details.
06
Work planned around tenants, operations, access, and weather.
07
Walkthrough, required inspections, and closeout documentation.
08
Follow-up and maintenance planning to protect the roof over its life.
We replace confusion with clarity.
09 Project proof
Real Blue Peaks work: what we found, what we recommended, and what was installed.
10 Common questions
It can be. EPDM stays flexible through Colorado’s freeze-thaw cycles and has a long track record on commercial buildings. The right choice depends on the building’s use, drainage, rooftop equipment, hail exposure, and whether oils or grease reach the roof.
A well-installed EPDM roof commonly lasts 20 to 30 years or more. Membrane thickness, installation quality, hail exposure, drainage, and maintenance all affect how long a specific roof lasts.
Often, yes. Open seams, punctures, and flashing failures can usually be repaired when the rest of the roof is sound and the insulation is dry. Weathered EPDM needs proper cleaning and priming for a repair to hold. Widespread seam failure or wet insulation points toward restoration or replacement.
Black EPDM absorbs more heat, which can help with snow melt but raises summer surface temperatures. White EPDM reflects more sunlight and lowers solar heat gain. Energy code or cool-roof requirements for your jurisdiction and building size may also affect the choice, and we confirm those for your address.
Neither is automatically better. TPO roofing offers heat-welded seams and a reflective white surface, while EPDM offers cold-weather flexibility and a long track record. We compare both against your building, budget, and how long you plan to own the property.
Most EPDM leaks start at seams, flashings, and penetrations: HVAC curbs, pipes, walls, edges, and drains. Punctures from foot traffic or hail, membrane shrinkage pulling at the perimeter, and ponding water that finds small defects are also common causes.
Sometimes. A recover may be possible when the existing roof and insulation are dry and sound and local code allows it. Wet insulation, more than one existing roof, or deck problems usually mean a tear-off. We verify moisture with core cuts or moisture evaluation before recommending a recover.
45, 60, and 90 mil are common. 60 mil is a common commercial specification; 90 mil adds material for heavy rooftop traffic, hail exposure, or long-term ownership; 45 mil has a lower material cost. We recommend a thickness based on your building, not a default.
We’ll inspect the roof, document what we find, and explain the practical options. No pressure, just a clear path forward for your property.
Blue Peaks Roofing · Restoration with a Purpose