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Tag: thermoplastic polyolefin

TPO or PVC: Which Low-Slope Membrane Is Right for Your Industrial Roof?

For property owners of warehouses, manufacturing facilities, or other industrial structures, the roof of your building isn’t just literal overhead, it’s one of the most critical components of the entire building.

Its success or failure can massively impact operations and profitability. And for the flat or low-slope roofs that dominate industrial construction, the material you choose matters enormously. Two of the most popular options – TPO (Thermoplastic Polyolefin) and PVC (Polyvinyl Chloride) – are all single-ply membrane systems, which is exactly why they’re so commonly confused. While they may look similar on the surface, they perform differently depending on your building’s environment, purpose and your priorities as a property owner. If you’re having a roof installed or replaced on an industrial structure, here’s what you need to know about these different membrane materials.

TPO (Thermoplastic Polyolefin)

TPO is one of the most widely installed low-slope membrane systems in the country, and for good reason. It’s a single-ply white reflective membrane that’s heat-welded at the seams, creating a watertight bond.

Benefits: TPO’s biggest selling point for industrial clients is its energy efficiency. The white reflective surface deflects UV rays and reduces cooling costs, which is a real advantage for large industrial buildings with significant roof square footage. It holds up well against punctures, tears, and impact, and the heat-welded seams are highly resistant to leaks over time. It’s also one of the more cost-effective options up front, making it a good value for large-scale projects.

Challenges: TPO is a relatively newer material compared to EPDM, so there’s less performance data, and the quality can vary between manufacturers. The key to using TPO is working with a contractor who sources from reputable brands and is familiar with the product.

Best for: Buildings where energy efficiency is a priority with large roof areas that are exposed to sunlight. Projects where budget and performance need to be balanced. It’s an excellent all-around choice for warehouses and distribution centers in climates like Hampton Roads where summer heat is a real factor.

PVC (Polyvinyl Chloride)

Like TPO, PVC membranes have a white reflective surface and heat-welded seams, but they offer the additional advantage of being chemical resistant. PVC has been used in industrial roofing since the 1960s and continues to be a popular option because of its performance in specific demanding environments.

Benefits: PVC’s resistance to chemicals, grease, animal fats, and industrial oils sets it apart from TPO. The heat-welded seams are as strong as TPO’s and like TPO, the white reflective surface helps manage heat and energy usage. PVC is also highly fire-resistant, which matters a lot in certain industrial settings.

Challenges: PVC carries a higher price point than TPO. Due to its formula, certain chemicals can leach out of the membrane over time, which will often cause it to become brittle if it’s not a high quality product. It can also be more sensitive to certain adhesives and solvents during installation.

Best for: Food processing facilities, restaurants, manufacturing plants that handle oils or chemicals, and any industrial application where roof exposure to chemical runoff or grease-laden exhaust is a real possibility. If your facility vents cooking oils, industrial solvents, or other chemical byproducts anywhere near the roof, PVC should be at the top of your list.

So How Do You Choose?

The honest answer both are good, solid systems when properly installed. The right choice depends on your specific building and how it’s used.

  • Choose TPO when energy efficiency, budget, and general performance are your priorities.
  • Choose PVC when your facility is exposed to chemicals, grease, or industrial byproducts that would compromise other membrane materials.

Andrews Roofing Can Help

At Andrews Roofing, we’ve been installing all three systems across industrial facilities in Hampton Roads for decades, and we’re happy to walk through which material makes the most sense for your facility, budget and priorities. Contact us for an estimate or inspection for a straight answer on what will deliver the best long-term return on your investment.

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Look Up: Finding the Outdoor Space You Didn’t Know You Had

Spring is almost here, and if you’re like most Hampton Roads homeowners, you’re probably already thinking about how to start shifting life more outdoors.

Maybe you’re planning to freshen up the patio furniture, fire up the grill, or finally tackle that landscaping project you’ve been putting off since fall. Outdoor living is one of the biggest perks of life in this region thanks to our mild temperatures, fresh coastal air and gorgeous spring weather.

But when you think about making the most of your outdoor space, are you only thinking horizontally? Most people default to ground-level thinking when it comes to outdoor living: the backyard, a patio, maybe a raised deck off the back door, which makes sense for most properties. But for a significant number of homes across Hampton Roads, the most valuable and underutilized outdoor space isn’t on the ground – it’s above your head.

With walkable roofing pavers, almost any flat roof surface can be transformed into functional, attractive outdoor living space. And in a region with as many potential water views as ours, the payoff can be big. To learn more about exactly what walkable pavers are, read our earlier blog on the material, but read on here to see how they can create possibilities in your own property that you may not have ever considered.

A Region Primed for Rooftop Life

Hampton Roads sits at the intersection of the Chesapeake Bay, the Atlantic Ocean, the Elizabeth River, the Lafayette River, the Lynnhaven, and dozens of creeks, inlets, and waterways threading through Virginia Beach, Norfolk, Portsmouth, Chesapeake, and beyond. We are, by almost any measure, one of the most water-rich metropolitan areas on the entire East Coast.

Water views in this region aren’t just nice to have – they’re a premium asset. Properties with water views command significantly higher prices, and for good reason. We all know that there’s something special about an unobstructed view of any one of these beautiful waterways.

The problem is that while a lot of Hampton Roads homeowners technically live near the water – even a stone’s throw distance – they miss the view completely because they’re experiencing it from the wrong elevation. Neighboring structures, fences, mature trees, and the general density of coastal neighborhoods can block what would otherwise be a stunning sight line. But go up one or two stories, and the picture changes completely. Here are a few neighborhood-specific examples.

Chic’s Beach

If you’ve spent any time in the Chic’s Beach neighborhood of Virginia Beach along the Chesapeake Bay, then you know that many of the properties there are three-story townhomes packed closely together, many of them sitting within a short walk of the Bay. From the street or the backyard (if there is a backyard), the views are often modest at best, blocked by the neighbor’s fence, the next row of townhomes, or a screen of vegetation. But from the rooftop of many of these homes, suddenly the Bay is right there.

A walkable rooftop terrace on a home in Chic’s Beach doesn’t just add outdoor square footage, it adds a premium view that expands the way you can live in your home and how much there is to enjoy. Morning coffee with the sunrise over the water, or evening breezes watching the boats come into the inlet – those are now realistic visions for the right property with the right walkable rooftop paver installation.

The North End

The north end of the Virginia Beach Oceanfront is one of the most coveted and valuable stretches of real estate in the region. Oceanfront and ocean-block cottages and homes, many of them multi-story, sit along some of the most beautiful Atlantic coastline on the East Coast.

For true oceanfront homes, a rooftop deck is an obvious enhancement: more square footage, higher elevation, more expansive views that can even include sunset views from the right spot. But perhaps the more compelling case in this area is actually for the ocean-block properties – those sitting just one street back from the oceanfront. At ground level, an ocean-block home may have limited water views. Add a rooftop terrace, and a home that was a short walk from the ocean suddenly feels oceanfront from the right vantage point. That’s a meaningful difference, both for everyday enjoyment and for the property’s value and marketability.

Inland Views and Little Yards

Water views make for a compelling story, but a rooftop deck doesn’t require an ocean backdrop to be worth pursuing. For many Hampton Roads homeowners the issue is simply that they don’t have a large enough back yard to truly enjoy their outdoor space. It may also be too exposed, too shaded, too uneven or often – too soggy.

Older neighborhoods across Norfolk and Portsmouth were often developed with modest lot sizes. Backyards can be small, awkwardly shaped, hemmed in by utilities or HVAC equipment, or simply too shaded and enclosed to feel like a real outdoor retreat. Ground-level patios in dense neighborhoods often feel exposed to neighbors visible on all sides, without any privacy or separation.

A rooftop terrace solves several of these problems at once. It creates usable outdoor space without expanding the home’s footprint. It often feels considerably more private than a ground-level patio level, you’re above the fence lines, above the neighboring yards, with a sense of openness and seclusion that’s hard to achieve at the ground. A flat roof over a garage, a first-floor addition, or even a main structure that’s currently just sitting there collecting leaves and weathering quietly may represent more functional outdoor square footage than anything available at ground level.

Keeping in Mind: Building Codes, Zoning, and Feasibility

Of course, a rooftop deck is not a possibility in every home or in every neighborhood. The feasibility of a project like this depends on a number of factors that need to be evaluated before getting too far down the road.

Structural capacity is the most fundamental consideration. A flat roof intended to become a walkable terrace needs to be assessed by a qualified contractor to confirm it can safely bear the additional load which includes not just the pavers themselves, but furniture, people, and anything else you plan to put up there. Walkable roofing pavers like Elevate SkyPavers are significantly lighter than concrete alternatives, but structural review is still essential.

Local building codes and zoning regulations also come into play. For most cities in our region, a rooftop deck will require a permit, and there are often requirements around railings or parapet walls for safety that must meet specific height and load standards. Neighborhoods governed by homeowners associations may have restrictions on rooftop modifications or additions. HOA documents are worth reviewing early in the process.

The right first step is a conversation with an experienced roofing contractor who can give you an honest assessment of what’s possible on your specific property. Many projects that seem complicated on the surface turn out to be very achievable once someone with the right expertise takes a look. And for properties where a rooftop terrace genuinely isn’t feasible, there are often other flat roof surfaces — over garages, additions, or lower-level sections of the home — that may present a workable alternative.

How Walkable Pavers Work

A walkable roof surface is created by starting with a TPO (thermoplastic polyolefin) white flat roof membrane, which reflects heat and protects the structure below. On top of that a drainage mat is installed, with the composite roofing pavers placed on top. The pavers sit on the drainage mat without being permanently adhered, which means the roof below remains accessible and the system can be adjusted or removed if needed.

We work primarily with Elevate SkyPavers, which are made from 95% recycled rubber tires, weigh roughly 35% of what comparable concrete pavers would, and carry a 20-year warranty with a lifespan that can reach 50 years. They come in multiple colors, they reflect heat rather than absorbing it, and they’re comfortable underfoot.

Done correctly by a contractor experienced with this system, the installation protects the roof below while creating an attractive, durable surface above. For the full breakdown of materials, installation, and eco-friendly benefits, take a look at our earlier post on walkable roofing pavers.

Spring Is the Right Time to Start the Conversation

Walkable rooftop paver projects involve assessment by a roofing contractor and often a general contractor as well as permitting, scheduling and of course – construction. They do not happen overnight, so if your goal is to have a new outdoor space ready to enjoy by late summer or fall, spring is the time to start planning.

Andrews Roofing has extensive experience with walkable roof surfaces throughout Hampton Roads, including demanding coastal environments where the right materials and installation approach really matter. If you’re curious about what might be possible on your property, we’d be happy to answer your questions. Contact us today and we’ll give you an honest picture of what your rooftop could become.

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