How Humid Weather Affects Flat Roofs

flat roof and humidity

Summertime in Connecticut is famous for being long and especially humid. Not only does the heat affect us, but it also affects our homes — especially homes with flat roofs. If you’ve noticed something unusual with your roof this summer, here’s why:

Top 3 Reasons Your Flat Roof Hates Muggy Weather

1. Water Infiltration

Many homeowners don’t realize that heat can translate to water damage. When we think of heat, we think of everything being dry, sometimes too dry. However. Building materials expand and contract due to changes in temperature. The rate of thermal movement increases the more open a roof is. Material elongation can result in wear and tear to your flat roof, creating gaps water can utilize to infiltrate into your home. 

Connecticut not only has very humid summers, but we also have a great deal of rainfall during the year. This means our roof is vulnerable to water damage when a summer storm or wet weather does arrive.

2. Fading

Summertime brings a lot of sunny beach days, which are great for us but can be potentially damaging to your roof. If your flat roof isn’t reflective, it may lose its coloration more quickly. To prevent fading, it’s best to pick a lighter, reflective roof color with tones of tan, beige, white, and grey.

3. Blistering

Blisters, or trapped moisture or air underneath the membrane of your roof, are also a common occurrence in muggier weather. Blisters are triggered by hot and humid weather, so you’re likely to notice them earlier in the summer. Blistering membranes appear like harmless eyesores, but experienced roofers such as our professionals at Landmark Exteriors know that they require immediate professional attention. 

The sun’s ultraviolet rays are infamous for material degradation, as well. This means the flashings on your flat roof may also begin to weaken due to sun exposure.

Protect your flat roof from the most common hot weather–inflicted issues by scheduling an appointment with Landmark Exteriors. Count on our expertise to protect and repair your roof. Contact us today for more information!

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