What “roof restoration” actually means
Roof restoration is an engineered process — not a recoat-and-pray. It’s the standard alternative to tear-off for commercial flat and low-slope roofs that still have a sound deck and a coatable membrane underneath. The process:
- Diagnostic survey: infrared moisture scan + physical defect mapping. We find every wet area, blister, seam failure, and damaged penetration before pricing the job.
- Pre-coating remediation: wet insulation cut out and replaced; blisters cut, dried, and patched with reinforcing fabric; seams and penetrations stripped and rebuilt.
- Surface preparation: low-pressure power wash, full dry-out, primer where required by the coating manufacturer.
- Coating application: two-coat silicone system at ~25 mil DFT (15-yr) or ~30 mil DFT (20-yr).
- Manufacturer inspection & warranty registration: third-party manufacturer rep on-site at completion; NDL warranty registered to the property.
Is your roof a restoration candidate?
Restoration isn’t the right answer for every roof. The IR scan and field assessment tell us definitively which side your roof falls on. Here’s the rubric we use:
✓ Good restoration candidate
- BUR, TPO, EPDM, mod-bit, metal, or existing silicone/polyurethane in fair to good shape
- Sound roof deck (no structural damage)
- Less than ~15% wet insulation
- Defects (blisters, seam failures, damaged flashings) are repairable in <~10% of roof area
- Roof age 10–25 years (premature for tear-off, past mid-life)
- You want to extend service life without the cost & disruption of full re-roof
✗ Not a restoration candidate
- Structural deck damage that hasn’t been repaired
- More than ~15% wet insulation (saturated insulation has to come out, and at that volume, tear-off is cheaper)
- Roof has already been recoated to maximum warrantable mil thickness
- Active mold growth that hasn’t been remediated
- Membrane is failing in >25% of the roof (too much repair, not enough sound substrate)
If you fall on the right-hand column, we’ll tell you that directly — and refer you to a tear-off contractor. We don’t bid jobs we don’t believe in.
What restoration costs (Denver, 2026)
Pricing varies with substrate condition, mil thickness, and warranty length. Typical ranges for Denver commercial flat-roof restoration in 2026:
- 10-year coating: roughly $4–$5/SF (~20 mil DFT). Lowest cost, shortest warranty.
- 15-year NDL coating: roughly $5–$7/SF (~25 mil DFT). The mid-tier sweet spot — most of our jobs land here.
- 20-year NDL coating: roughly $7–$9/SF (~30 mil DFT). Best long-term value if the roof is in solid restoration condition.
Compare to a typical Denver tear-off and re-roof, which runs $10–$15/SF in 2026 — before dumpster fees and tenant displacement costs. Restoration is roughly half the all-in spend, with comparable warranty paper.
What drives variance in your specific quote
- Existing roof type (BUR with gravel costs more to prep than smooth TPO)
- Wet insulation extent (revealed by the IR scan; we set this as a unit-rate allowance, not a guess)
- Number of penetrations and parapet linear footage
- Manufacturer choice (GACO, GAF, Henry, Mule-Hide each have different price points)
- Warranty target (15-yr vs 20-yr changes the mil thickness and the silicone volume)