Commercial Roof Repair

Project Overview

• Location: Denver, CO
• Building Type: Office Building
• Size: 22,000 SF
• Roofing System: TPO Section Repair
• Duration: 3 Days
• Repair Area: 3,200 SF (15%)
• Damage Cause: Hail Storm

Roof Condition

This three-story professional office building near downtown Denver sustained hail damage during a severe summer storm. The property manager noticed water staining on ceiling tiles in several top-floor offices shortly after the storm—a clear sign that the roof membrane had been compromised. Their previous roofing contractor—a residential company that had installed gutter guards on the building—came out and immediately recommended a full roof replacement at $185,000. The property manager, understandably skeptical of such a large quote for an 8-year-old roof, called us for a second opinion.

• Hail impact fractures on north-facing roof section (primary damage zone)
• 3 active leak points traced to punctured membrane areas
• Damaged flashing around one rooftop HVAC unit
• South and west sections showing no damage

Evaluation & Approach

The damage was confined to approximately 3,200 SF on the north-facing section—just 15% of the total roof area. The remaining 18,800 SF of TPO membrane was in excellent condition with 15+ years of service life remaining. The undamaged insulation was completely dry with full R-value. This is exactly the kind of situation where honest commercial roofing contractors prove their value.

Why This Approach

• Addresses the actual damage—nothing more, nothing less
• $28,000 total cost—85% less than replacement quote
• Preserves remaining manufacturer warranty on undamaged sections
• 3-day project with zero interior disruption
• Heat-welded TPO patches integrate seamlessly with existing membrane

Scope of Work

1. Damage Assessment & Marking: Every hail impact and puncture marked and photographed. Created detailed map of all repair locations for crew.
2. Wet Insulation Removal: Cut out and replaced approximately 400 SF of moisture-saturated polyiso insulation directly beneath punctures.
3. Membrane Section Replacement: Installed new 60-mil TPO membrane over 1,800 SF of the most heavily damaged area using matching material from original manufacturer.
4. Heat-Welded Integration: All seams between new and existing TPO heat-welded at 900°F+ for monolithic, waterproof bond identical to original installation.
5. HVAC Flashing Repair: Replaced damaged flashing around affected rooftop HVAC unit with new TPO-clad metal flashing.
6. Water Test & Documentation: Flood tested all repair areas; provided complete photo documentation and warranty on all work performed.

Result

Warranty: 5-Year Workmanship

• 5-Year Workmanship Warranty: Full coverage on all repair work performed
• 15+ Years Expected Life: Full roof system now positioned for long-term service
• Zero Active Leaks: All water intrusion points permanently sealed
• $157,000 Saved: Compared to unnecessary full replacement quote