A little help please,
After having recent leaks into my condo from one of the units above me, I have been thinking of waterproofing the ceiling and perhaps the walls. I'd like to know if it's possible.
Starting with the ceilings above my drywall are my 2x4 studs. Above the studs is an open gap of about 18". Above the gap is the concrete slab that is the floor of the unit above mine. There are openings at some points for exhaust vents, so I'd like to know how to seal those up too with still being able to vent out them. I thought of using spray foam insulation, but I'm not sure if that would be waterproof. I do know that it acts as a air-tight seal though. I don't know if the leaks came through the openings or cracks in the concrete slab.
As for the walls, the outer ones I have found that underneath the drywall is a vapor barrier, studs, insulation and concrete slabs or brick (cinder blocks on some and decorative bricks on walls facing the street). I was thinking of using the spray foam. But like I said, I don't know if that would be waterproof.
I would prefer to use something that I can spray on, or use a roller brush to apply. Since it's all concrete or brick, it will have to be thick and probably flexible. Plus it will be applied on the inside as opposed to the outside, so vapor emissions must not be present in the product used.
Much appreciated for all of your comments, tips and tricks-of-the-trade.
After having recent leaks into my condo from one of the units above me, I have been thinking of waterproofing the ceiling and perhaps the walls. I'd like to know if it's possible.
Starting with the ceilings above my drywall are my 2x4 studs. Above the studs is an open gap of about 18". Above the gap is the concrete slab that is the floor of the unit above mine. There are openings at some points for exhaust vents, so I'd like to know how to seal those up too with still being able to vent out them. I thought of using spray foam insulation, but I'm not sure if that would be waterproof. I do know that it acts as a air-tight seal though. I don't know if the leaks came through the openings or cracks in the concrete slab.
As for the walls, the outer ones I have found that underneath the drywall is a vapor barrier, studs, insulation and concrete slabs or brick (cinder blocks on some and decorative bricks on walls facing the street). I was thinking of using the spray foam. But like I said, I don't know if that would be waterproof.
I would prefer to use something that I can spray on, or use a roller brush to apply. Since it's all concrete or brick, it will have to be thick and probably flexible. Plus it will be applied on the inside as opposed to the outside, so vapor emissions must not be present in the product used.
Much appreciated for all of your comments, tips and tricks-of-the-trade.