Although most people are aware of the effects of strong winds and heavy rain on a flat roof, only some people understand that even sunny days can cause serious wear and tear. Here’s how being exposed to the hot sun can affect a flat roof.
Thermal Expansion, Explained
The most important effect of heat on a flat roof is a phenomenon called thermal expansion. As the roof’s surface absorbs heat from the sun, it tends to expand. During cloudy days or evenings, the reverse happens, with the material contracting due to being colder. This process happens all year round, but is most noticeable during summers and winters when the temperature changes are more extreme.
Pushing Out
While a flat roof is normally designed to withstand thermal expansion, there’s a chance that sections of the roof expand even if there’s not enough space. This causes the material to literally push itself out along the seams, creating gaps through which water can seep. This has to be fixed ASAP to prevent serious moisture damage later on so you’ll have to get help from a roofing company.
Accounting for Heat
In order to reduce the risk of heat distortion damaging your roof, your flat roof must be properly installed, with enough room to allow roof sections to expand safely while also not being positioned too far that they create seams when the panels contract. This requires careful measurements and the right tools to pull off the job.
Hiring a Pro
Because of the complexity of installing a good flat roof, you’re better off hiring certified roofing experts to get the job done. Not only do they have the right people for the job, but they will also have your new flat roof covered by a product and service warranty that could spare you thousands of dollars worth of repairs.
Make sure you get a good flat roof with help from our team. Bradford Xteriors Inc is the leading roofing contractor in upper Arlington, Columbus and Dublin, OH. You can call us at (614) 714-1832 or fill out this contact form to request a quote.