Documented outcomes on occupied commercial roofs.
Real projects, real constraints — tenants, patients, and operating budgets — with the approach and result laid out plainly.
Every commercial roof carries constraints beyond the deck itself: tenants who can't be displaced, patients who can't be disrupted, and capital budgets that have to be respected. Below are two documented projects showing how we scoped, sequenced, and completed the work — with the outcome our clients actually experienced.
- Building type
- Two nine-story HUD senior housing towers, 302 residences
- Square footage
- Mechanical-room roof section
- System
- White TPO membrane with continuous roof-to-window waterproofing
Original metal flashings preserved and reinstalled; crisp perimeter and penetration detailing over an occupied senior community.
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- Building type
- 108-bed nonprofit skilled nursing & rehab center
- Square footage
- 40,000 sq ft
- System
- Malarkey Vista® Class IV impact-resistant shingles
Completed on time between spring storms with minimal resident disruption — and P91 was awarded the next property.
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The P91 Zero-Leak Guarantee
Before we call a commercial roof finished, we run a live water test across seams, penetrations, drains and terminations with your representative present. Anything that weeps gets corrected on the spot — before the final invoice and before your tenants ever see it. It is our own completion standard, backed by our 5-year workmanship warranty, not a manufacturer program.
Have a similar project in mind?
Assessment, condition report, and a phased budget you can take to ownership. GAF Certified, BBB member, fully insured, and a 5-year workmanship warranty.