Why Flat Roofing Is a Smart Choice for Commercial Properties
Flat roofs are becoming more and more popular on commercial buildings in Richmond, and it’s easy to see why. They’re practical, cost-effective, and give you more usable space on top of your building.
At Hammersmith Roofing & Construction, we specialize in flat and low-slope roofs designed to hold up in Richmond’s climate. We help business owners and property managers find the right roofing system that checks all the boxes: durability, easy upkeep, energy savings, and more.
When done right, your roof becomes more than just a covering. It becomes an asset that supports your business and protects your investment for years to come.
What Is Flat Roofing? A Quick Overview for Commercial Buildings
Flat roofing, sometimes called low-slope roofing, isn’t completely flat, but it’s close. It has just enough slope to let water drain off properly.
Flat roofs are common on commercial buildings because they’re easy to access, simple to maintain, and make great platforms for HVAC systems, solar panels, and even rooftop gardens.
Instead of shingles, flat roofs use different materials like rubber membranes (EPDM), built-up roofing (BUR), modified bitumen, or single-ply materials like TPO. These roofing materials are designed to withstand water and the elements.
Why Flat Roofs Are Gaining Popularity in Richmond and Beyond
Flat roofs aren’t just practical. They also make a lot of sense from a design and cost standpoint. They’re easier and faster to install than steep roofs and require less structural support, which helps keep project costs down.
They also provide a large, open surface that can be used for a wide range of purposes, such as solar panels, mechanical equipment, or even green spaces. That kind of space utilization is valuable, especially in commercial properties.
On top of that, modern roofing materials like TPO, modified bitumen, and synthetic rubber last longer and perform better than ever before. Flat roofs are no longer just for warehouses. You’ll find them on all types of commercial buildings throughout Richmond.
Flat Roofing Systems Explained: What’s on the Market?
There are several types of flat roofing systems available, and the best choice depends on your building, your budget, and what you want your roof to do.
Built-Up Roofing (BUR)
This is one of the oldest types of flat roofs, made from layers of asphalt or coal-tar, fabric, and gravel. It’s thick, durable, and great for buildings that need long-lasting protection.
Modified Bitumen
This is an upgraded version of BUR. It uses a mix of asphalt and rubber or plastic to create a flexible, strong roof. It can be rolled out and applied either by torch or self-adhered. It holds up well against weather and foot traffic.
Single-Ply Roofing (TPO, PVC, EPDM)
These are lightweight roofing systems made of a single layer of material. TPO and PVC are known for their energy efficiency and UV resistance, while EPDM (rubber roofing) is durable and budget-friendly.
Metal Roofing
Some low-slope roofs use standing seam metal panels. They’re more expensive upfront, but can last a very long time with very little maintenance.
Green Roofs & Roof Gardens
Green roofs have layers of soil and vegetation over a waterproof membrane. They help reduce heat, manage stormwater, and can create a peaceful outdoor space for employees or tenants.
Drainage Is Everything: How to Keep Your Flat Roof Dry
Why Drainage Matters
One of the biggest challenges with flat roofs is drainage. If water doesn’t flow off the roof properly, it can pool and cause leaks or even structural damage.
How Drainage Systems Work
Most flat roofs use a combination of the following:
- Interior drains — water flows into pipes inside the building
- Scuppers — openings in the edge of the roof that direct water out
- Gutters and downspouts — help move water away from the building
Your roof still needs a slight slope (called roof pitch) to make these systems work. If there’s no slope, you’re asking for standing water and all the problems that come with it.
Avoiding Common Drainage Problems
- Clear debris after storms or heavy winds
- Check for signs of ponding water
- Make sure roof drain parts are working and unclogged
- Fix soft spots or bubbling in the roofing surface as soon as possible
Good drainage protects your investment. At Hammersmith, we always design flat roofing systems with water flow in mind.
Boosting Efficiency: How Flat Roofs Help You Save Energy
Flat roofs don’t just protect your building—they can help you save on utilities, too.
Cool Roofs and Reflective Coatings
By using reflective roof coatings or choosing materials like TPO, your flat roof can reflect sunlight rather than absorb heat. That means lower energy bills and a cooler building.
Solar Panel Ready
Flat roofs are ideal for solar panel arrays. The open layout gives you lots of flexibility in how you place panels and makes them easy to access for cleaning and maintenance.
Green Roofs & Roof Gardens
Installing a green roof or rooftop garden adds natural insulation and helps reduce stormwater runoff. These systems can also make your building more appealing and environmentally friendly.
Smart Material Choices
Whether you’re using single-ply membranes or modified bitumen, today’s flat roofing material types are built to last and conserve energy. They also require fewer repairs over time, saving you money down the line.
What to Know Before Installing a Flat Roof
Check Structural Support and Roof Decking
Your building needs to be able to support the weight of the roof system, especially if you’re adding solar panels or green roofing. We’ll make sure the roof decking is sound and the structure can support your chosen materials.
Follow the Building Code
Every flat roofing project must meet Richmond’s local building code. That includes things like insulation, fire ratings, roof slope, and drainage design. Hammersmith handles all the details to ensure your roof is up to code.
Pick the Right Materials
Between modified bitumen, built-up roofing, single-ply roofing, metal roofing, and more, there are many options to choose from. We’ll help you weigh the pros and cons of each based on your building and budget.
Work with Trusted Flat Roofers
Flat roofs might look simple, but they require experience to install correctly. Seams need to be sealed tight, drainage has to be just right, and materials must be applied with care. That’s what we do at Hammersmith.
Maintaining Your Flat Roof: Protecting Your Investment
A flat roof can last for decades, but only if you take care of it. So how can you extend the life of your roof?
Keep Up with Regular Maintenance
- Get the roof inspected at least twice a year
- Clear out drains, scuppers, and gutters
- Look for cracks, bubbles, or damage after storms
- Check around equipment like HVAC units or solar mounts
Common Issues to Watch For
- Pooling water
- Leaks around seams or flashings
- UV damage from sun exposure
- Punctures from foot traffic or falling debris
Repair or Replace?
Sometimes, a flat roof repair is all you need. But if the roof is old or keeps giving you trouble, a flat roof replacement may actually save you more in the long run. We can help you decide what makes the most sense.
What Does a Flat Roof Cost? Looking at Value Over Time
What Affects the Cost?
- Size of the building
- Condition of your current roof
- Type of materials used (like built-up roofing, modified bitumen, or single-ply)
- Code requirements
- Whether you’re adding extras like solar panels or green roofing
Why It’s Worth It
Flat roofs help you cut energy costs, reduce maintenance headaches, and can even boost property value. With the right roofers and materials, your roof becomes a long-term asset, not just an expense.
Think Long-Term
It’s tempting to go with the cheapest option, but cheaper materials often lead to more repairs and earlier replacement. Investing in quality pays off with fewer problems and better performance.
Looking Ahead: The Future of Flat Roofing for Commercial Spaces
Flat roofs are no longer just the simple, budget option. They’ve evolved into smart, modern roofing systems that give commercial buildings flexibility, efficiency, and a sleek look.
Whether you’re interested in green roofing, adding solar panels, or just need a low-maintenance system that lasts, there’s a flat roofing solution out there for you.
At Hammersmith Roofing & Construction, we’ve built our reputation on craftsmanship, experience, and honesty. From flat roof repairs to full commercial roof replacement, we’re here to help you choose the right system, install it the right way, and keep it performing for decades.
Let’s talk about how your next roof can work harder for your business. Contact Hammersmith today to start your next roofing project. We’re ready when you are!
