Blown in insulation for remodeled bath?
I have a hundred year old Victorian house. I’m planning to renovate a 1st floor half-bath and have discovered a lot of air infiltration in multiple locations in a closet adjoining the bath. The walls in the closet are sheetrock over lath and plaster. The walls in the bath are probably conventional sheetrock as the bath was more recently constructed (30 + years?) by enclosing a former porch. They may be insulated with fiberglass, but I suspect little attention was paid to sealing the stud bays. Some air infiltration is along the floor of an interior wall that abuts the exterior wall ! I have previously sealed the rim joist directly underneith this room.
I don’t need to remove the walls in the closet as part of the bath remodeling and am thinking about dense-packing them with blown in cellulose from the inside to address the infiltration. Gaining access from outside would be complicated as the original clapboard was covered in nailed-on asbestos? shingles. I think it would be very difficult to remove shingles without a lot of damage. This would also let me blow some insultation into the wall cavity in the interior wall which probably communicates with the exterior wall.
What do you think about dense-pack blown in insulation accessed from the interior? I could also remove a 3″ strip of wall at the floor plate for better access and then cover this with drywall sealed with foam. I rather doubt it would it be easier to just remove the walls down to the studs.
I’m confident there are no old wires in these walls.
All thoughts appreciated.
Replies
Greetings K,
This post, in response to your question, will bump the thread through the 'recent discussion' listing again which will increase it's viewing.
Perhaps it will catch someone's attention that can help you with advice.
Cheers
94969.19 In the beginning there was Breaktime...
If you think there is any possibility of a water leak from the bathroom plumbing to the insulation it might not be a good idea to insulate with blown in cellulose because it really soaks up the water. I will be waiting to see the recommendations of people who have experience in dealing with this problem.