Issue Found
Ceiling Stains & Wet Tiles
Water is already inside and tracking laterally. The stain is rarely under the actual entry point.
SERVICES / REPLACEMENT
Commercial Roof Replacement & Re-Roofing Services
Certified crews, manufacturer-backed warranties, and phased installation planned around your operations — nationwide.
Free Inspections — request an estimate, no obligation.
Designed for occupied buildings
Warranty-compliant installation
Local Service, Nationwide
Designed for occupied buildings
Warranty-compliant installation
Local Service, Nationwide
WHY IT MATTERS
Why Roof Replacement Matters
- Avoid escalating repair costs
- Maintain warranty compliance
- Prevent operational disruption
- Protect long-term asset value
We start with a detailed condition assessment to determine whether re-roofing or full replacement is the most cost-effective solution.
What to Expect
Replacing a commercial roof is a capital investment that impacts building performance, safety, and long-term costs. Our process is designed to deliver consistency, compliance, and confidence at every stage.
Ready to plan your roof replacement?
Get a Free Inspection
STEP 01
Initial Assessment & Scoping
Roof Systems Comparison
Choosing the right system is one of the most important steps in planning a roof replacement. Here's a quick look at the strengths and limitations of the most common commercial systems.
System
Pros
Cons
Best Use Cases
- +Energy-efficient white reflective surface
- +Durable seams
- +Cost-effective
- −Puncture-vulnerable if not maintained
- −Newer track record than EPDM
Retail, office, healthcare where energy efficiency is a priority
- +Long track record
- +Highly flexible, good in cold climates
- +Cost-effective
- −Dark color absorbs heat
- −Seams need adhesive/tape maintenance
Industrial, warehouses, colder regions
- +Excellent chemical/oil resistance
- +Strong seam welds
- +Reflective
- −Higher cost than TPO/EPDM
- −Less flexible in very cold climates
Restaurants, manufacturing, chemical plants
- +Multi-ply redundancy
- +Good for high-traffic roofs
- +Proven performance
- −Heavier, more labor-intensive install
- −Shorter lifespan vs. single-ply
Schools, hospitals, older facilities with foot traffic
- +Extremely durable, 40+ year lifespan
- +Low maintenance
- +Recyclable
- −Higher upfront cost
- −Expansion/contraction can stress fasteners
Warehouses, distribution centers, architectural projects
Not sure which system fits your facility?
Download the full Roof Systems Comparison Guide for lifespan, cost, and maintenance details on every system above.
Nations Roof provides consistent quality, accountability, and national coverage for complex roofing programs.
Proven Safety & Compliance
Proficient in Major Facility Portals
Experienced across the platforms national teams rely on every day.
Certified by All Manufacturers
Approved to install, service, and warranty all major roofing systems.
Familiarity with FM Global Approvals
Experience meeting FM Global standards for insured properties.
Proven Safety & Compliance
WHAT ARE YOU SEEING
Start With the Symptom
Ceiling stains do not keep facility managers up at night. Tenant complaints, surprise capital requests, and a denied warranty claim do. The conditions below are where those three things start.
Issue Found
Issue Found
Standing Water & Clogged Drains
Ponding adds dead load and quietly breaks down the membrane while blocked drains keep it there.
Issue Found
Membrane Blisters & Bubbles
Trapped moisture or vapor beneath the membrane. A blister that opens becomes an entry point.
Issue Found
Seams Lifting Open
Adhesive or weld failure from age and thermal cycling. An open seam is a direct path to the deck.
Issue Found
Lifted or Loose Edge Metal
Compromised edge attachment is both a leak path and a liability if a section releases in wind.
Issue Found
Patches That Keep Failing
A recurring patch is treating a symptom the original repair never diagnosed.
Seeing one of these on your building?
A Nations Roof technician gets on the roof, documents the actual source, and gives you a straight answer on repair versus replacement.
Recent Projects
SANTA CLARA, CA
Agilent Technologies
Sunpower T-5 composite framed ballasted PV system installed over Sarnafil PVC single ply membrane.
SANTA CLARA, CA
Bayland
The 31,000 sq ft roof area was replaced using Duro-Last .050 mil fleece backed PVC membrane installed over 1/4 inch Dens Deck.
SAN LEANDRO, CA
Cushman & Wakefield
The 59,400 sq. ft area on the North Building was restored using the WeatherWeld seamless roof system surfaced with a reflective aluminum.
HAYWARD, CA
Davita
The existing capsheet surfaced Built Up Roof was overlaid with EPS Fanfold insulation and Firestone .060 mil polyester reinforced TPO single ply.
SAN JOSE, CA
De Rose Associates
DuroLast 50 mil PVC was installed over the existing built up roof system using EPS fanfold insulation to separate the two systems.
RANCHO CORDOVA, CA
Delta Dental
The existing capsheet surfaced fiberglass Built Up Roof system was installed over gypsum board over a steel deck.
Frequently Asked Questions
How do I know if my roof needs replacement instead of more repairs?
Warning signs include frequent leaks, trapped moisture in the insulation, failing seams, or a roof at the end of its service life.
Our team starts with a detailed inspection to determine whether your roof can be safely re-covered (re-roofed) or if a full replacement is required. We evaluate moisture levels, deck condition, insulation integrity, and warranty compliance to help you make the right decision for your building and budget.
Will a replacement disrupt tenants or building operations?
We plan projects around your operating hours and use safe, low-disruption methods. Our crews are trained to work in occupied environments — from retail stores to hospitals — with minimal impact on daily operations.
What roofing systems do you recommend?
Every property is different. We provide side-by-side comparisons of TPO, EPDM, PVC, Metal, and Modified Bitumen systems, with pros and cons for each. This allows you to choose the system that best fits your property’s needs, budget, and performance goals.
How do you help control project costs?
Our nationwide buying power secures competitive material pricing, while our self-performing crews reduce rework and variability. That means more predictable budgets and fewer surprises for Procurement and Owners.
Do you handle permits, safety, and compliance?
Yes. Our project teams manage all permitting requirements and follow strict safety protocols backed by an industry-leading 0.47 EMR. We’re also familiar with FM Global and ISNetworld standards, ensuring your project meets compliance expectations.
What industries does Nations Roof serve?
You’ll receive full documentation, photos, and warranty details. All records are stored in your customer portal, giving you ongoing visibility and a foundation for long-term roof management.
Need Commercial
Roofing Help?
Get In Touch
Supporting Facilities Across Every Sector
Our crews have successfully completed projects in all 50 states and across all major facility types.
