We’re installing a commercial underground drainage system for roof runoff water. We have the downspouts running into an underground drainage system. I want to explain why downspouts freeze up no matter what in the winter time, no matter what system, no matter what pipe you use.
When it’s 20 degrees outside and you’re below freezing and the sun is melting the snow and ice on the roof, it runs down these gutter downspouts. So, here we’ll have the example of 20 degrees. We’re at 20 degrees. We have direct UV rays, so we’ve got radiant energy just melting the snow and ice off the roof. Soon as it hits this ice cold aluminum gutter downspout, it just freezes up. As the water runs through here, it just freezes. So as it’s freezing and freezing and freezing and building up where you end up with a blocked downspout. This ice cold aluminum just freezes on contact. [...]
Read More: https://www.frenchdrainman.com/how-to-reduce-roof-gutter-downspout-freeze-ups-on-commercial-buildings
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