Revisions log for Answer #2198

This whole story makes no sense for two reasons:

1) The attic is so cold because you're depriving it of the heat of your living room through the insulated ceiling of the upper floor; it won't suddenly warm up on its own because you throw in a few square feet of insulation wool. Frost protection: none. Only thermal protection is improved.

2) You want to wrap your attic in foil. Of course, this is possible, but there is a risk once it gets damp up there. Usually the water dries out because the attic is well ventilated. This possibility falls away when the roof is wrapped.

Your "expert" obviously agrees that moisture can get in there, otherwise he could have done without the (extra) vapor barrier and left the insulation exposed.

As for the price, it also depends on what you get for it.

At its simplest, he screws the battens behind the jamb so the insulation doesn't fall down, glues the vapor barrier visibly to the tongue and just stretches it over the jamb and rafters in the area of the accessible surface. Then screw one layer of drywall right on top, done. And I just now read that the price does not include stuffing.

For that amount of work (which would be enough for an attic) I would consider the price a bit steep.

However, if he got behind the jamb, installed OSB all around the floor as a joiner, primed well, then primed the vapor barrier around the jamb, taped on the rafters to seal the nails, attached another batten to straighten out the structure, glued 2 layers of drywall on top and finally put everything together, including the corner guard rails and such, it would certainly look very different.