Commercial • Denver
Business plaza
TPO membrane, perimeter gutters, and snow retention for a busy retail and office plaza.
The plaza’s original built-up roof was past its service life: alligatored capsheet, soft spots at RTU sleepers, and standing water after every storm. Facilities wanted a single assembly that could be warranted, inspected, and maintained without guessing which tenant roof tie-in was leaking.
We partnered with the owner’s engineer to confirm structural capacity for the new insulation build-up, then broke the job into live-work phases so retail bays stayed open and the loading zone had defined crane windows.
Challenge
- Multiple HVAC curbs with inconsistent prior flashing detail
- Interior retail open during business hours — noise and debris control
- City inspections tied to tear-off progress and dry-in each night
- Snow shedding paths over sidewalks and a covered valet lane
Our approach
- Moisture survey: Cores and infrared spot checks to strip only wet insulation, saving sound polyiso where code allowed.
- Dry-in sequence: Split the field into thirds; each section was watertight before the next tear-off began.
- TPO install: Fully adhered white TPO, heat-welded seams, walk pads at service routes, and manufacturer details at every curb.
- Metal & safety: New coping and counterflashing; engineered snow rail layout above public walkways.
Schedule & logistics (summary)
| Phase | Duration | Focus |
|---|---|---|
| Mobilization | 4 days | Logistics plan, fencing, dumpster staging |
| Tear-off / dry-in | 11 days | Phased removal, insulation replacement |
| Membrane & metal | 9 days | TPO welds, coping, gutters, snow rails |
| Closeout | 3 days | Manufacturer inspection, punch, warranty docs |
Deliverables
- As-built photo set and roof plan marked with drain IDs
- Warranty registration and maintenance interval letter
- One-year workmanship check included in contract
If your plaza has similar RTU density or tenant constraints, we can adapt this phasing model — the table above is a template we refine after your first site walk.
Before & after
Drag the slider to compare the worn low-slope assembly with the finished TPO roof, coping, and snow retention from this plaza job.
Move the slider left or right to reveal more of the “before” or “after” side.
Project gallery
Click any thumbnail to open the full-screen album. Use the arrows or your keyboard to browse every project photo.
What property teams say
Commercial clients judge crews on schedule noise, photo documentation, and whether the roof stays dry between phases — not just the finished membrane.
“Phasing was spelled out week by week. We never had to guess which bays were open for deliveries.”
“Welds and curb photos were in the closeout binder before the final check cleared. That’s rare.”
“Snow guards went in where our insurer asked. Walkways stayed usable all winter.”
Google average
850+ reviews statewide
Next step
Plan a commercial roof audit
Send plaza drawings or invite us for a walk — we'll return a written scope, phasing options, and a fixed price range before mobilization.
Rough calculator
Rough budget calculator
Instant ballpark only — pitch, access, and code upgrades change real bids.