Conduit in under roof insulation?


Old 02-05-08, 09:34 AM
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Conduit in under roof insulation?

My brother in law plans on re-roofing his house soon. He has an open beam ceiling with no insulaion. He plans on adding rigid insulation on top of the exterior of the tongue & grove ceiling and the roofing over this(he tells me others in the neighborhood have done this). Now for the electrical: he has some conduit(emt) running across the roof, he would like to relocate this conduit into the rigid insulation which will then be roofed over. I could not think of any codes/reason why this could not be done in this manner. Opinions?
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Old 02-05-08, 09:42 AM
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As long as it will not be exposed to the elements, it should be okay. There could be a significant heat build-up in the conduit, but shouldn't be a problem so long as you are not maxing out the fill or de-rating factors.

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