PVC vs TPO: Pros & Cons
PVC Roofing Membrane
✅ Pros
- Proven Track Record – Been used for 40+ years with consistent performance.
- Superior Chemical Resistance – Highly resistant to oils, greases, and chemicals (ideal for restaurants, factories, etc.).
- Weldable Seams – Hot-air welded seams create strong, watertight bonds.
- Flexibility – More pliable than TPO, performs well in colder climates.
- Longevity – Often lasts 20–30 years when installed correctly.
- Fire Resistance – Naturally more fire-resistant than TPO.
❌ Cons
- Higher Cost – Typically more expensive than TPO.
- Plasticizers – Added to make it flexible but can leach out over time, leading to brittleness in older systems.
- Environmental Concerns – Production and disposal of PVC are less eco-friendly compared to TPO.
- Not as Reflective – Still reflective, but generally less than bright-white TPO membranes.
TPO Roofing Membrane
✅ Pros
- Cost-Effective – Typically less expensive than PVC.
- Highly Reflective – Bright white surface offers excellent energy efficiency and meets “cool roof” standards.
- Environmentally Friendly – 100% recyclable, no chlorine in manufacturing.
- Strong Seams – Hot-air welded seams are stronger than taped systems (and rival PVC).
- UV Resistance – Excellent resistance to ultraviolet rays and heat aging.
- Growing Market Share – Widely adopted in commercial roofing over the last 20+ years.
❌ Cons
- Shorter Track Record – Around since the 1990s, but not as time-tested as PVC.
- Durability Concerns – Can be less flexible and more prone to cracking in very cold climates compared to PVC.
- Variable Quality – Different manufacturers use different formulations, so long-term performance can vary.
- Chemical Resistance – Weaker against oils, fats, and harsh chemicals compared to PVC.
