Can you solve this month's stumper?

Here is your chance!

Thanks to Bo Jespersen, President of The Breathable Home in Manchester, Maine for contributing February's home performance head scratcher.

Bo was stumped after his company was hired to install some spray foam insulation in a second story bedroom side attic.

When Bo arrived, he noticed that the work was exclusively on the north slope of the home, and that the owner had installed three layers of 2" thick rigid foam in-between the rafters, and applied one-part spray foam along the edges (where some stuffed fiberglass was found as well). A small air channel was left between the top of the foam and the bottom of the roof sheathing. The ridge beam was exposed and required ending the rigid foam to the southern slope to make it air tight.

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