1 story villa built in 1976 with a basement.. removed existing poorly constructed walls and floors in the family room due to odor. Discovered this now.. looks like some kind of masonite/asphalt board and seems to be what smells after smelling and placing it in a plastic bag.. what is the easiest way to fix this? It looks like it's embedded under both exterior and interior walls.
However, it only smells in the family room and not in the other areas.
However, it only smells in the family room and not in the other areas.
Is it possible to break it, looks like asfabord, and it's like a spacer between the floor slab/sula and the wall, to make it a bit tight and the wall almost sticks, new concrete doesn't adhere to old concrete but just lies against it.
Hello! Thanks for the response! Yes, you can remove parts of it... but how can you remove it entirely? As mentioned, it seems to be the cause of the odor problem...
If you break away what is visible and apply cold asphalt a few times, you will seal it properly and can pour a new floor against it. Feel free to mix some fine sand into the asphalt so the new concrete adheres better. Trying to remove it is not possible as it goes under the wall.
I've looked a bit closer, and it seems more like some type of base insulation paper or sill sealing.. Feels more tough and rubbery. However, it smells bad and a lot in the entire recreation room
do you really want to use cold asphalt indoors?
do you really want to use cold asphalt indoors?
What you found is a layer to keep the foundation wall in place and make it tight against the sole. Having asphalt on the edge doesn't matter, you will cast over it. How was it at first, did it smell bad or did it happen when you tore up the floor?
What type of floor/floor construction are you planning to have?
Raised floor? Then go with a ventilated floor (with negative pressure).
For example https://www.nivellsystem.se/_files/200000723-ccbd6ccbd9/Nivell Montering vent 2021.pdf
Raised floor? Then go with a ventilated floor (with negative pressure).
For example https://www.nivellsystem.se/_files/200000723-ccbd6ccbd9/Nivell Montering vent 2021.pdf
Smelled the whole time.. thought it was due to wood shavings and that plastic was placed under the Platon mat.. along with a wall with wooden studs and insulation.. but it seems this "underlay" is what's smelling, at least clearly and strongly right now.
Initially thought of laying Platon mat again with foam boards and laminate flooring, but after proper cleaning and without plastic underneath..
Wonder if an ozone treatment could help?
Initially thought of laying Platon mat again with foam boards and laminate flooring, but after proper cleaning and without plastic underneath..
Wonder if an ozone treatment could help?
Last edited: