Gaco® Silicone Roof Restoration — 20-Year NDL Warranty
Restore. Don’t Replace.
When a commercial roof ages, you don’t always need an expensive tear-off. Gaco® silicone restoration creates a seamless, weather-resistant surface over your existing roof, typically with less disruption, less cost, and a faster timeline than full replacement. It’s a smart way to extend roof life while keeping tenants and operations moving.
Quick wins at a glance
Often no permit required · Minimal tenant disruption · About half the time of tear-off · 30–50% cost savings typical · 20-Year NDL (No Dollar Limit) warranty on approved projects
Ready to compare options?
We’ve pre-positioned
300,000 SF of Gaco silicone so your project can start quickly without supply delays. TWM Roofing has been
CA-licensed since 1987 and partners with
Gaco (a Holcim company) to deliver proven systems and support.
Why Restoration Wins
Cut Cost, Keep Operations Moving
A restoration eliminates most demolition, labor, and hauling, which is why owners routinely see
30–50% savings compared to conventional replacement, especially when multiple layers would otherwise need tear-off. And because we’re coating over a prepared surface, projects typically complete
in about half the time, reducing noise, debris, and access interruptions for occupants.
Often No Permit
Many municipalities classify silicone restoration similarly to painting a roof. That can mean
no building permit is required, though we’ll always
verify with your city before work begins. The result: fewer administrative hurdles and a simpler path to completion.
Stronger Coverage, Clear Terms
Gaco® restoration systems can qualify for
a 20-year NDL warranty—non-prorated coverage for
labor and materials—when installed to the approved specification and registered with the manufacturer. We’ll walk you through what’s required and build the project to meet (or exceed) those benchmarks.
Potential 2025 Tax Advantage
Because restoration is frequently treated as
repair/maintenance, many owners may be eligible for a
full deduction in 2025 instead of depreciating a capital improvement over the life of the roof. Always
consult your tax professional; we can provide scope and documentation to support the conversation.
What to Expect from Our Process
Every building is different, but our method is consistent: document, prepare, reinforce, and coat to spec for long-term performance.
- Roof Walk & Photo Report
We start with a roof assessment to identify ponding areas, seam conditions, wet insulation, failed penetrations, and other vulnerabilities. You’ll receive photos and notes so you can see exactly what we see. - Prep & Targeted Repairs
After cleaning, we detail problem areas, like seams, curbs, penetrations, drains, adding reinforcement where needed. This step is key: great coatings succeed when the substrate is sound and the details are addressed. - Bleed-Blocker (as needed)
On asphaltic roofs (e.g., BUR or modified bitumen), a bleed-blocker may be applied to lock in oils and keep the finished surface bright and uniform. It also helps the silicone topcoat adhere consistently. - Gaco® Silicone Topcoat
We apply a high-solids silicone coating that creates a seamless, UV-resistant, weather-tight membrane. Silicone stands up to ponding water better than many alternatives and maintains reflectivity to help the roof run cooler. - Inspection, Warranty & Close-Out
Upon completion, we finalize documentation and, for qualifying projects, submit for the 20-year NDL warranty. You’ll receive a close-out package with photos, product data, and care guidance.
Want to see the system in action? Watch our Gaco® restoration videos on the TWM Roofing channel:
- How Gaco Silicone System Installation Can Save Your Roof From Leaks
- Complete Restoration of a Commercial Flat Roof with GACO Silicone System
- GACO Silicone System with Bleed Blocker
- Watch a GACO Roof Inspection
Is Your Roof a Good Candidate?
Gaco® silicone restoration works across a wide range of roof types when the substrate is structurally sound:
- Built-Up Roofing (BUR) and Modified Bitumen
- Aged Single-Ply membranes (TPO, PVC, EPDM)
- Coated Roofs needing renewal and additional warranty coverage
- Metal Roofs (subject to detail prep and specification)
If you’re unsure where your system fits, schedule an assessment—our report will map the best path forward and pricing for each option.
TWM Roofing’s Capacity, Credentials & Current Work
- Inventory Ready: With currently 300,000 SF of Gaco silicone in stock, we can mobilize quickly and price competitively.
- Since 1987: TWM Roofing has decades of local experience and a CA license in excellent standing.
- Backed by Scale: Gaco is part of Holcim, one of the world’s largest building-materials companies.
- In Progress: A 37,000 SF Oceanside restoration—case study coming soon; subscribe on YouTube to see progress clips as they post.
For HOAs & Multi-Unit Communities
We speak HOA. From board packets and reserve planning to quiet hours and milestone notifications, our team coordinates with managers, boards, and residents to keep projects smooth and predictable. See how we structure inspections, repairs, replacements, and multi-year maintenance plans on our HOA Services page.
Frequently Asked Questions
Do we need a permit?
Often
no. Many cities treat restoration like coating or painting a roof, but we’ll
verify requirements with your local jurisdiction so there are no surprises.
How disruptive is the work for tenants?
Far less than a full tear-off. Expect
reduced noise and debris, fewer access restrictions, and a
faster completion window. We coordinate staging, safety, and communication to minimize impact.
Is the 20-year warranty prorated?
No. The
NDL warranty is
non-prorated and covers
labor and materials when the project meets the approved specification and is registered. We’ll outline exactly what’s required during the proposal stage.
Is there really a tax benefit?
Many owners categorize restoration
as
repair/maintenance, which can enable a
full 2025 deduction versus multi-year depreciation. Your tax professional should make the final call; we’ll supply scope and cost detail to assist.
How soon can you start?
Quickly. Because we’ve stocked
300,000 SF of Gaco silicone, scheduling is currently
(November 2025) wide open. We’ll confirm timelines during your assessment and lock dates as soon as you approve.
What will my assessment include?
A roof walk with
photos, notes on
wet areas, seams, penetrations, recommended prep, targeted
repairs, and a
budgetary quote with scope
and
warranty options.
See It. Plan It. Start It.
- Watch: Short clips and progress updates on our GACO YouTube channel—including Gaco® restorations and warranty walkthroughs.
- Plan: Need a line item for the board or CFO? We’ll provide a budgetary range and a path to a 20-year NDL specification.
- Start: Choose your window; we’ll stage material, coordinate access, and keep everyone informed from kickoff to close-out.
Book a No-Cost Roof Assessment. Call TWM Roofing today: 760-731-0777.
Notes & Disclaimers: Warranty availability, coverage, and term depend on roof condition, approved specification, and manufacturer registration/QC. Permit requirements vary by municipality. Tax treatment varies by owner/entity—please consult a qualified tax professional.








