Why Seam Failure Happens in Commercial Roofing

Compared to residential roofs, the material and installation method used in commercial roofing systems are markedly different. For one thing, the material comes in rolls, which are laid out and installed in a variety of ways. Depending on the material, commercial roof membranes are sealed by:

Commercial Roofing
  • Using adhesives or sealant tapes.
  • Blowing the material with hot air.
  • Mopping hot asphalt.
  • Applying cold adhesives. 

Whatever the installation method, the membranes will still have seams, often considered the most vulnerable area in a commercial roof. That’s because these seams are prone to failure – a problem that typically occurs because of:


Commercial roofing systems are exposed to the harsh elements day in and day out. Soon enough, wind, hail, sun and rain will take their toll on the system, causing the membranes to shrink and become brittle. This, in turn, deteriorates the seal applied to the seams, making it easy for rainwater to infiltrate your commercial roof and create a leak.

Poor Insulation

The insulation applied to every commercial roof should remain secure. Otherwise, it will warp and create a bump under the roof membrane. The distortion created by poor insulation will soon pull at the seams, resulting in torn membranes in some areas of the roof.

Incorrect Roof Installation

The seams of the roof membranes have to be sealed properly to keep them tough and watertight. But this won’t be the case if you work with an unreliable roofer, who wouldn’t be above taking quick shortcuts so they can take the money and go.

Avoiding Seam Failure in Commercial Roofing

The simplest way to prevent seam failure in your commercial roof is to hire a trusted roofing company like Mass-Tech Roofing and Building Co.​ Each member of our professional roofing crew is highly trained, skilled and experienced. They’ll ensure your commercial roof installation is completed in a timely and efficient manner. No shortcuts, mistakes, or callbacks – just superior workmanship backed by decades of industry experience. 

Give Us a Call Today

Look no further than Mass-Tech Roofing and Building Co.​ for top-tier solutions to all your commercial roofing needs. Request a roofing quote by calling us at (781) 826-7663 or filling out this contact form. Our service areas include Pembroke, MA, plus the communities in and around Greater Boston, Cambridge and South Shore. We look forward to hearing from you!

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