Hi folks,
I’m in the process of having a home built in southeastern PA. Today the insulation crew installed faced insulation in the 2×6 walls.
I noticed that the crew stapled the insulation facing to the side of the 2×6 (along the 6″ side) rather than the face of the stud. This creates areas along the entire length of each stud where the insulation doesn’t fill the entire stud cavity because the the insulation is compacted due to the stapling. In some places, the insulation is compacted 2-3 inches.
My questions:
1) Why would the insulation crew do this? Does doing this save time or is there some advantage for the drywall crew?
2) Is this something that I should talk to the builder about? Does it violate some standard regarding insulation installation?
3) Is a vapor barrier required per building code?
Thanks. . .
Replies
It is a complicated issue for some, and can start arguements. You should talk with your builder.
I do staple to the face of the stud ( the 1-1/2" edge) when I use faced which is seldom. FG batts are the worst sort of insulation available so I plan better choices, but for economy jobs, that is what I do. I agree that the insulation is cramped and less effective the way they installed it and the supposed VB becomes of much less value.
It is probably easier and less expensive to staple to the stud faces IMO.
But many SR crews find it easier to not have it there and rebel at finding studs covered. Some SR crews glue the rock on too and this is a factor in the overall decision.
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Energy star requires that the insulation be face stapled but most builders think they get a better drywall job if its inset like you describe.
Google "energy Star thermal Bypass checklist" and you will find the correct installation procedure.
Better yet hire an energy star HERS rater to inspect the insulation job and get a detailed list of all that can easily be done to optimize the insulation job.
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"We don't build 'em like they used to."
They do this because it is faster and hence cheaper. Two layers of kraft paper and a few staples is NO impediment to any competent drywall crew. This is simply a shortcut that compromises both the function of the insulation as well as the vapor retarding characteristics of the paper (which are minimal at best anyway).
It is shoddy, and unfortunately, is quite common (but is not acceptable nevertheless).
I'd complain.
Thanks Guys! I'm meeting with the builder tomorrow for other stuff and will discuss it with him then.
Edited 11/27/2007 5:43 pm ET by Bassnotes