Im finishing basement and starting putting foam board on the concrete walls and in the rim joist cavity where I pulled back the loose batt insulation that was there. I’m looking to fill in gaps around the foam board in the rim joist cavity. What should I use for that ?
also, the top of the concrete wall which sticks out past the sill plate is exposed. Should I lay a piece of foam board over it?
I have seen it both ways when searching the web. Newer house to me with an addition that has a dirt floor, 2 vents and no insulation. What are thoughts? The 2 vents auto shut when its cold enough. Should I cover dirt with plastic and insulate duct work and sub floor with hard insulation? Leave it be? My floors are cold in that part of the house and it loses heat quicker. ThanksRead More
Currently renovating my basement after some smoke damage. The basement used to be finished in the owens corning system, which means some of the areas were framed out with 2x3 steel studs, and the corning panels were affixed in front of them, creating both the wall finish, and the insulation. 75% of the exterior walls were just affixed right against the concrete, so moving from owens corning to traditional insulation/drywall i've already glued Foam board insulation to the concrete, attached furring strips anchored through into the concrete with ramset nails/tapcons, installed vertical furring strips for framing, and i will drywall against that, but i'm still trying to figure out how to reuse the areas with steel framing that exists around things like the oil burner room, and the room currently used for storage and washer/dryer. I dont really have room to affix foam to the concrete wall in those areas due to a combo of both lack of space, and placement of electrical service, oil tank, plumbing stack etc. and i have no intention changing the layout, so its ideal to leave the framing in place
So my option is either placing 2.5" insulation in the cavities between the studs, and then drywalling directly onto the studs, or foam board in front of the steel studs, and then drywall over that. Both would in effect isolate the unfinished colder basement spaces of the oil burner room and laundry room from the finished space, but just trying to figure out what's easier and more logical.
I know the steel studs act as a thermal bridge, so the ideal situation is insulating behind, but at least in the oil burner room, its so tight i would have to remove it all and start fresh which is more work than its worth for a basement.
Is the solution glueing 1" of Foam board in front of the studs with foam board adhesive, then adhesive on the back of the drywall, attach drywall to foam, and then drive longer drywall screws through and into the metal studs. Seems like thats the easiest method so long as the strength is there to hold everythingRead More
02-04-22, 03:45 PM
