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Why Membrane Roofs Fail at the Seams

The seams are often the weakest points of any membrane roofing system, and it’s not uncommon for these areas to experience failure. If not addressed immediately, your property may become exposed to the elements until problems resulting from leaks and overall roof deterioration start to manifest. 

Why Membrane Roofs Fail at the Seams

Understanding the reasons behind seam failure is vital to ensuring your own membrane roofing system is given the care and attention it deserves. Here’s a look at some of them:


Long-term exposure to the elements – rain, snow, wind, hail – can cause the membrane roof to show signs of deterioration, from shrinking to becoming brittle. This might be normal, but that doesn’t mean you neglect your roof and leave it unattended. The more it deteriorates, the faster it is to lose its weather resistance and durability. Before you know it, the seams have already failed, exposing your roof to further damage years before the end of its expected lifespan.

Improper Insulation Installation

The insulation beneath the roof membrane serves as a thermal barrier that shields the building against the outside elements. It plays a vital role in keeping heating and cooling costs low. For it to do its function, however, it must be installed securely before the membrane material is applied. Otherwise, it will warp from within, creating humps across the roof surface. This, in turn, pulls the membrane at the seams, causing tears. If it is not, it will warp and create a hump under your roof’s membrane. In turn, the seams of your roof will be pulled and the hump will cause tears in various parts of your roof.

Bad Installation

You may also experience that the seams of your roof are installed incorrectly. This will leave a gap that will create major problems with your roofing system later on. Make sure that your membrane’s seams are sealed properly and correctly. This usually happens if the installation team lacks the skills and expertise to 

To make sure that your roof’s membrane does not fail at the seams, work only with qualified local roofing contractors. At Oberg Roofing & Remodeling, we warrant all of our work, including a 10-year workmanship roof warranty. Our roofing team is highly skilled and utilizes only the finest roofing products in the industry.

Call us now at (320) 204-2264 or (651) 369-1630. You may also fill out our contact form for a free, no-obligation quote. We serve clients in Sauk Rapids, MN, and surrounding areas.