TPO, PVC or Metal: Which Commercial Roof Is Best for Your WA Business?

Choosing the right roofing material is a big decision for any business, especially in Washington, where weather conditions can vary greatly. TPO, PVC and metal roofing are three of the most popular options for commercial properties, each offering unique benefits and potential drawbacks. In this guide, we’ll break down the pros and cons of each material to help you make an informed choice that protects your building, fits your budget and stands up to Washington’s climate.

Thermoplastic Polyolefin (TPO)

TPO roofing is made from a blend of thermoplastic and synthetic rubber, giving it both flexibility and durability. Its composition makes it easy to reshape during installation. 

Pros: 

• Impact resistant – Able to withstand impact, less susceptible to tears
• Ideal for extreme temperatures – Remains flexible in freezing conditions and reflects UV rays in hot, sunny climates
• Easy to install – Heat-welded seams allow for easy installation

Cons: 

• Shorter lifespan – Has a shorter lifespan than other single-ply roofing options like PVC
• Susceptible to UV rays – UV rays can degrade TPO over time, leading to leaks and shrinkage
• Punctures easily – Falling branches, sharp tools or foot traffic can puncture the material, leading to leaks
  

Polyvinyl Chloride (PVC)

PVC roofing is made from thermoplastic, a type of plastic that softens when heated. This flexibility makes installation easier, as roofers can reshape it as needed. 

Pros: 

• Impact resistant – Able to withstand impact, less susceptible to tears
• Ideal for extreme temperatures – Remains flexible in freezing conditions and reflects UV rays in hot, sunny climates
• Easy to install – Heat-welded seams allow for easy installation

Cons: 

• Shorter lifespan – Has a shorter lifespan than other single-ply roofing options like PVC
• Susceptible to UV rays – UV rays can degrade TPO over time, leading to leaks and shrinkage
• Punctures easily – Falling branches, sharp tools or foot traffic can puncture the material, leading to leaks
  

Metal Roofing

Typically made from sheets of steel, aluminum or copper, metal roofing is a durable option for commercial buildings in the Pacific Northwest. 

Pros: 

• Long-lasting – Metal roofs are incredibly durable, lasting anywhere between 40 to 100 years.
• Energy efficient – Able to reflect light, keeping your building cooler in the summer months
• Easy to maintain – Resistant to mold and mildew, requiring fewer cleanings than traditional roofing types 
• Environmentally friendly – Fewer materials are needed over the lifespan of the roof, can be recycled at the end of their service life

Cons:

• Costly installation – Metal roofs are more complex to install, and require more labor 
• Noisy – Can amplify sounds, which can be loud during intense rainfall and hailstorms
• Requires insulation – If not properly insulated, they can lead to higher energy costs

Susceptible to wear – Can suffer from dents, corrosion and rippling over time

So, Which Material Is Right for Your WA Business?

While each roofing material has its own benefits and drawbacks, your selection will be based on your business’s individual needs: 

Oftentimes, TPO roofing is used for warehouses, retail centers and large office spaces. This material is preferred as it balances durability with cost-effectiveness. Plus, installation is relatively quick and straightforward, which helps businesses save on labor costs and minimize disruptions.

Since it’s resistant to chemicals and pollutants, PVC roofing is a preferred choice for industrial facilities that are looking to enhance safety without compromising on functionality. However, if you do choose PVC as your roofing material, it's important that you consult with your roofer on which grade is best suited for your climate. While PVC can be used in colder climates, it can crack if it's repeatedly exposed to freezing temperatures. 


Ideal for warehouses, barns and retail spaces, metal roofing is an excellent option. While the upfront costs are typically higher, they can last for several decades with minimal upkeep. If you’re looking for a long-term investment, metal roofing may be the right choice for you. 

Always Consult With a Licensed Roofer

While this information can help you with your decision-making, it’s always best to consult with a professional roofer who can evaluate your property and its current needs. A qualified roofer can provide insight into which materials will perform best in your climate and for your building type. They can also identify any underlying issues that might affect the longevity and performance of your new roof.

Looking To Install a New Roof? Call Valiant Roofing Today!

Need a dependable roofer? Our team at Valiant Roofing is here to help! Based in Vancouver, we proudly serve businesses across Washington and Oregon, including Portland. We specialize in commercial roof replacements and repairs, providing expert craftsmanship and durable results you can rely on for years. If you’re ready to upgrade your roof, call us today at 360-523-1445. To learn more about our other services, including residential roofing and window installation, visit our website through the link here.