Guest User
7/25/2017
Hello. Do attics with installed metal roofing heat up as much as compared to installed asphalt roofing? I know that metal is a great thermal conductor, so does heat get conducted into the attic via the metal roof? Will the metal roof store heat like shingles? Any info on how metal performs on sunny days would be most helpful. Thanks.
Todd Miller
Isaiah Industries, Inc.
7/25/2017
Here's a quick video that addresses this subject: https://www.asktoddmiller.com/roofing-help-videos/metal-roofing-101/energy-efficiency-metal-roofing/ If you can get a metal roof that either has an integral thermal break or that can be installed with a thermal break, that will be a very good thing for your energy costs. I had an energy study done once at Florida Solar Energy Center that showed brown metal shingles (with an integral air space as a thermal break, but minimal reflectivity) keeping the attic cooler than a highly reflective white standing seam (which had no thermal break). Also, when you roof your home, consider taking steps to boost your attic ventilation as that is a big help as well.
Eric Novotny
An informed customer is the Best Customer!
7/26/2017
Even constructed similarly (framing, roof color, etc.), the metal roof assembly will be cooler on the average given its rapid release of heat vs. asphalts tendency to store thermal energy.
Guest User
7/31/2017
How does one go about having a thermal break under a metal roof?
Todd Miller
Isaiah Industries, Inc.
7/31/2017
Many products have integral thermal breaks created by the design of the product (such as metal shingles) or the clips used for fastening the panels. Some other products can be installed in battens, to raise them up off of the roof deck. Cross battens (vertical followed by horizontal) can also all active ventilation beneath the metal roof.

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