Attic Doors

cyepsen

I'm trimimg a new house. There are new, solid core, wood interior doors installed for access to attic rooms on the same level. These rooms are unheated and uninsulated, so the building inspector has told the owner/builder that these must be insulated to U35 per code.

These are really nice fir panel doors. Is there a legit way to add insulation to the back side of the door, or is it better to swap them out for insulated doors?

Thanks,

RYANINMICHIGAN

why is a General Contractor asking this?

cyepsen

Hi -
I am a sub on this job - its a large custom house. I'm doing stairs, railings, trim, fireplace, kitchen, yada yada. I just want to see if anyone's worked up something that the building inspector will like. The engineer/architect will take forever.

RYANINMICHIGAN

I do not know why you could not mount in some way Bat insulation on the door and add a sweep

cyepsen

I ended up adding a frame to the cold side of the door. glued in R5 of Polystyrene, covered it with flash paper and battens. This ends up making the door about U2.0 which is good enough for the Rescheck.