Maximum Asset Protection. Minimal Interruption.
Renew Your Facility. Boost Efficiency.
with a 5-Year Workmanship Warranty.
Upgrade Your Roof
Without Shutting Down.
That failing, low-R-value membrane. That concern over expensive tear-off disposal fees. The need for a major system overhaul that doesn’t disrupt your daily business operations.
A Commercial Roof Retrofit involves installing a new, high-performance roofing system directly over an existing system, provided the existing structure can handle the load and the current roof is not saturated with water. This process is a highly efficient way to address roof failure, dramatically boost energy efficiency with new insulation, and meet current building codes—all while avoiding the significant labor, waste, and interruption associated with a full tear-off.
At Achilles Roofing & Exteriors, we specialize in non-destructive retrofit installations using lightweight, durable single-ply membranes (like TPO or PVC). Our process begins with a structural assessment to confirm feasibility, ensuring we deliver an approved, modern system that minimizes downtime and maximizes asset protection.
Key Benefit List
- Significantly Reduced Project Cost (No Tear-Off Fees)
- Minimal Operational Disruption and Interior Exposure
- Increased Thermal Efficiency with Added Insulation
- System Upgrade to Modern, Durable Membranes
- Extends the Effective Service Life of the Building













System Options We Provide
Modern Membranes for Non-Invasive Upgrades.
Highly durable, energy-efficient, and lightweight single-ply membrane. Ideal for retrofitting due to its heat-welded seams and reflective surface.
A flexible, chemical-resistant, and high-strength membrane that offers excellent durability, often used in restaurant or harsh environments.
New layers of insulation (e.g., polyisocyanurate) installed between the existing roof and the new membrane to meet current R-Value requirements.
A high-density board (e.g., gypsum or fiberboard) installed over the existing roof to provide a smooth, stable, and protective substrate for the new membrane.
Installing new metal panels or a new single-ply system over an existing low-slope metal roof, utilizing specialized framing and transition materials.
Installed during the preparation phase to control moisture migration and protect the new insulation layer from interior humidity sources.
Our Proven Retrofit Process
Stress-Free Commercial Roof Retrofits, Step-by-Step.
Performing a core sample analysis and structural review to confirm the existing system is dry and the deck can handle the added load.
Finalizing the appropriate membrane, insulation thickness, and fastening method to achieve the desired R-Value and durability goals.
Making necessary repairs to the existing membrane, securing loose flashing, and preparing the substrate for the new system overlay.
Meticulously installing the new insulation and cover boards, followed by the heat-welding of the new single-ply membrane and flashing.
Final quality check, site cleanup, ensuring full code compliance, and issuing the 5-year workmanship warranty documentation.
See Our Work:
Quality Commercial Roof Retrofit in Action.
Invest in Efficiency and Value.
Secure Your Roof Today.
Upgrade your commercial roof system efficiently and effectively. Contact Achilles Roofing & Exteriors now for a free feasibility study and quote.
I would like to post a positive review for Achilles Roofing & Exteriors team. It is second time we are doing minor work on our house and I'm very satisfied with quality of work, dedication and enormous progress on a transformation they made in both times. I do not foresee any roof repairs on my house in future but if you are looking for someone trustworthy, punctual, caring to do your roof work, I would totally trust them.
Achilles Roofing & Exteriors did an exceptional job with our residential roofing project, providing top-notch roof repair services and professional work done at a reasonable cost. Their experienced roofer team handled the quick roofing service with care and attention to detail, ensuring our new roof exceeded our expectations.
We really needed a new roof and we got 5 different quotes from 5 companies and Achilles gave us the best quote by thousands of dollars! Very professional work and service and very flexible to help meet our busy schedules.I would highly recommend this company to anybody who needs roofing services.
Great price · $2,000–4,000
To cool down my attic, I decided to install a solar attic fan. I got proposals from four different vendors and evaluated them based on customer service, experience, implementation, and price. Achilles Roofing & Exteriors, led by Ahmad Faiz, was the standout choice.
Great price · $10,000–12,000
Ahmad is very professional. The process was very simple. Price was affordable and the quality of work is amazing. Thank you for the new replacement and previous rook repairs.
Quick turnaround on some roof repairs we needed for the sale of our home. Everything was documented on the invoice and with photos. Very professional.
Great job on my Atrium cover. Used them before for my roof. Well done and very reasonable.
Frequently Asked Questions
What is the main advantage of a retrofit over a tear-off?
The primary advantage is the speed of installation and the drastic reduction in material disposal costs, guaranteeing minimal interruption to your facility’s operations. Schedule your Free Feasibility Study today.
Can a retrofit be done if my current roof is leaking?
Only if the insulation below the existing membrane is dry and the existing leaks are minor. If insulation is saturated, a tear-off is required. We perform a diagnostic assessment to confirm feasibility.
Do I need to add more insulation during a retrofit?
Most often, yes. Adding new insulation is a requirement to meet current energy codes, resulting in significant energy savings. We can calculate your required R-Value upgrade.
Does the retrofit process meet building codes?
Absolutely. We ensure the combined system meets or exceeds all local codes for load, fire rating, and energy efficiency. We handle the documentation for maximum asset protection. Call us for a code compliance review.
What kind of disruption should I expect inside the building?
Since we are not performing a noisy tear-off, internal disruption is extremely low, limited primarily to brief work near edge flashings. We guarantee minimal impact on your business.



















