Insulation requirements question

[Marcel R. Cyr]

I guess that with all of this, if the Builder were smart would install a SIF on the roof and the R-factor would not be an issue no matter what State you are from or Code regulations.

Marcel

http://www.thermocore.com/

[Robert J. OConnor]

Originally Posted by roconnor

... kraft paper facing that has a tar like coating on the back side which serves as a vapor retarder which is just called paper faced batts ...

That assumes the tabs on the paper facing are adequately attached/stapled to the studs/joists ...

[Robert J. OConnor]

P.S. And for an HI I don't think it really matters if you have R30 or R38, as long as it's not a phased inspection on new construction. A home inspection is NOT a code compliance review.

As long as it's not significantly under-insulated (e.g. only R15 or R19 for an attic in the north that would usually require around R30 or R38 it's close enough for an HI inspecting an existing home.

JMO