Solutions for a Leaking Flat Roof

TPO waterproofing is the ultimate solution for a leaky flat roof. Water can destroy the structure of your building, not to mention the valuables inside. There are several options available to you to repair or replace a leaky flat roof.

But, how do these roofing methods rank in efficiency and cost-effectiveness?

As roofers of many years, we would like to give you our experiences with common solutions.

Coatings or TPO Waterproofing?

A roof coating is simply a fluid treatment that is painted onto an existing roof. A coating to stop the leaking probably looks appealing. And, some coatings boast of ten to fifteen years of leak-free performance. However, as professional roofers, we can tell you these coatings are not reliable. A coating is not a roof. If the underlying roof is deteriorating, a coating is not going to prevent it from continuing to spring leaks. We never expect more than a year or two of extended life from the use of a coating. And, don’t be surprised if a coating simply can’t stop the leak. On the other hand, TPO waterproofing will keep you leak-free for decades!

Hot Tar vs. TPO Waterproofing

Hot tar has been around for a very long time. It is an excellent waterproofing agent. In fact, a hot tar roof was the standard for many years and can last up to fifteen years. Yet, it’s not the top solution for several reasons:

Water can pool on a hot tar roof, causing deterioration.
It’s heavy. A typical building can withstand only two layers of hot tar roofing.
Hot tar gives off fumes and is not eco-friendly.
TPO roofing can last twice as long as a hot tar roof.

Torch-Down Roofing (Dangerous)

Torch-down is not a great choice. In the torch-down procedure, sheets of special roofing material are rolled out onto the roof. Then, a roofer uses a torch to heat the material. This causes it to adhere to the surface. Unfortunately, it has a short lifespan, uses open flames, and has safety issues. Many insurance policies do not cover torch roofing applications because of the high degree of fire danger.