Running a business in Rehoboth Beach comes with a lot of moving parts — employees, customers, operations, and of course, your building. Yet one part of your building often gets overlooked until there’s a problem: the roof.
At Grand Exteriors, we hear the same Commercial Roofing FAQs again and again from local businesses. And here’s the thing — having the right information can save you time, money, and major headaches down the road.
This guide pulls together the most common questions we get, giving you clear, practical answers you can actually use. Whether you’re worried about leaks, wondering if you need an inspection, or curious about the best roofing material for the coastal climate, we’ve got you covered.
Why It’s Smart to Ask Questions About Commercial Roofing
We know you’re busy, and roofing probably isn’t top of mind — until something goes wrong. But being proactive can help you avoid emergencies, unexpected costs, and business disruptions.
The good news? You don’t need to become a roofing expert. You just need to know enough to make smart decisions — and work with a trusted local partner like Grand Exteriors, who can guide you every step of the way.

How Long Should a Commercial Roof Last?
It depends on the material, but here’s a general breakdown:
- Built-Up Roofing (BUR): 20–30 years
- Modified Bitumen: 20–30 years
- TPO (Thermoplastic Olefin): 20–30 years
- EPDM (Synthetic Rubber): 25–35 years
- Metal Roofing: 40–70 years
Of course, those numbers only hold if the roof is properly installed and maintained. Without regular upkeep, even the best materials can fail early.
How Often Should a Commercial Roof Be Inspected?
We recommend a professional roof inspection at least twice a year — once in the spring and once in the fall — plus after any major storm event.
Why? Because catching small issues (like a loose seam or minor puncture) before they turn into big problems can save you thousands of dollars. At Grand Exteriors, we provide thorough, photo-documented inspections so you know exactly what’s going on up there.
What’s the Best Roofing Material for Coastal Areas Like Rehoboth Beach?
Not every roofing system is built to handle the challenges of salt air, strong winds, and heavy rain. Based on our experience, here’s what tends to work best for Rehoboth Beach businesses:
- Metal roofing (with protective coating): Extremely durable and resistant to corrosion
- TPO roofing: Reflective and energy-efficient, great for keeping cooling costs down
- EPDM roofing: Flexible and long-lasting, with excellent performance in variable temperatures
Of course, the best material also depends on your specific building, your budget, and how you use your roof (like whether you have HVAC units or regular rooftop foot traffic). That’s where a customized consultation makes all the difference.
How Do I Know If My Roof Needs Repairs?
Here are some red flags you should never ignore:
- Water stains on interior ceilings or walls
- Blisters, bubbles, or cracks on the roof surface
- Pools of standing water after rain
- Rust or corrosion on metal components
- An unexplained spike in your energy bills
If you notice any of these, don’t wait — call in a professional roofing team (like ours) right away. Quick action can help you avoid costly structural damage or full roof replacement.

How Much Does It Cost to Repair or Replace a Commercial Roof?
We know you want a ballpark number — but the honest answer is, it depends. Factors include:
- Roof size and complexity
- Type of material
- Extent of any existing damage
- Local labor costs
- How easily the roof can be accessed
At Grand Exteriors, we offer transparent estimates with no hidden fees. We’ll walk you through your options, explain the pros and cons, and help you choose the most cost-effective approach for your business.
Why Work With Grand Exteriors?
We know you have options, but here’s why so many Rehoboth Beach businesses trust Grand Exteriors:
- We’re a locally owned company that understands the unique challenges of coastal roofing
- We offer personalized service, not cookie-cutter solutions
- Our team uses high-quality materials and proven installation techniques for lasting results
- We build long-term partnerships, supporting you with inspections, repairs, maintenance, and expert advice
With Grand Exteriors, you get more than a contractor — you get a roofing partner dedicated to keeping your business protected.
Ready to Get the Answers You Need?
If you’ve got more questions beyond these Commercial Roofing FAQs, don’t worry — we’re here to help. At Grand Exteriors, we believe that informed business owners make the best decisions, and we’re happy to walk you through every step of your roofing journey.
Give us a call today at (302) 228-3764 or visit our website to schedule your free consultation. We’ll assess your roof, explain your options in clear language, and help you build a plan that works for your building and your bottom line.
Because when it comes to protecting your Rehoboth Beach business, you deserve a roof — and a roofing partner — you can trust. Let’s get started.