Low-Pitch Roofing | Todd Miller

Low-Pitch Roofing

September 19, 2010 | Filed under: Misc, Roofing Answers, Roofing Installation

Q: We are re-roofing our Colorado mountain cabin. There is a large portion of the roof that is virtually flat and has, historically, been the source of much leakage. It was covered a year ago by new asphalt. We are now planning to install a metal roof. Is metal a good choice for this low-pitch section? Someone told us if we leave that section asphalt, it allows easier access to the rest of the roof, because it’s easier to walk on, but we want to make sure it’s protected.

Also, is it better to leave existing roofing materials down and install the metal directly on top, or better to rip off the old before installing the new? How does that affect the noise?

A: You can leave the existing in place but you should cover it with a layer of underlayment or something as a slip sheet between the two.

The only type of metal roof that will be suitable for this low pitch will be a mechanically seamed standing seam.

Walking on the metal roof will not be an issue and you should not notice any objectionable noise transfer.

todd Miller

has spent his entire career in the metal building products manufacturing industry. He is president of Isaiah Industries, an organization recognized as one of the world’s leading metal roofing manufacturers. Todd is currently Vice President of the MRA (Metal Roofing Association) and a Past Chair of MCA (Metal Construction Association). Through his website, he strives to raise the bar on standards and practices to provide property owners with the best possible products for successful roofing projects.

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