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4 replies
12k views
4 replies
Fix and waterproof balcony floors?
I have a balcony measuring 8 square meters (2 meters deep and 4 meters long) made of concrete, and beneath it there is a storage room. The balcony, like the house, was built in 1937. When it rains, water runs down between the concrete and the ending steel beam at the edge, causing it to rain into the storage room. In addition, the surface of the balcony has taken some damage over the years and is no longer completely smooth. I am thinking of fixing this by creating a slope on the balcony with casting and covering it with roofing felt + decking.
How do I do this best? What should I use for casting, self-leveling compound? concrete? Do you attach the roofing felt to the concrete with anything?
How do I do this best? What should I use for casting, self-leveling compound? concrete? Do you attach the roofing felt to the concrete with anything?
Some sort of concrete for outdoor use, regular self-leveling compound doesn't withstand moisture and lies under the waterproofing layer.
I suppose you glue the paper with something if that's the right method to protect the concrete on a balcony; isn't it enough to pour and paint it? Ordinary balconies don't leak rainwater as far as I've seen.
I suppose you glue the paper with something if that's the right method to protect the concrete on a balcony; isn't it enough to pour and paint it? Ordinary balconies don't leak rainwater as far as I've seen.
Are you sure the leveling compound isn't water-resistant? Its placement under the waterproofing layer in wet rooms probably doesn't relate to the compound's water resistance... What I want to do is seal between the concrete and the steel beam at the edge, as that's where the water seeps down; the concrete itself isn't leaking. I also thought about adding an extra sheet metal on the edge to direct the water out a bit, which also needs to be sealed so that it doesn't flow underneath. It seemed smart to use roofing felt, which was also suggested by the inspector when I bought the house.
Ex casco has a solution with filler, sealing, and ceramic tiles.
http://www.pbgolv.se/Bilder/balkong_terrass.pdf
I believe Cc höganäs also has a system, they certainly have sealing, at least, and on their website, you can present yourself as an architect, and the fun products appear.
I have no experience with any of the above; it's just what I've come across when I was searching for sealing a balcony with a room underneath. In my case, it ended up being a rubber membrane since there was a wooden frame and many angles.
http://www.pbgolv.se/Bilder/balkong_terrass.pdf
I believe Cc höganäs also has a system, they certainly have sealing, at least, and on their website, you can present yourself as an architect, and the fun products appear.
I have no experience with any of the above; it's just what I've come across when I was searching for sealing a balcony with a room underneath. In my case, it ended up being a rubber membrane since there was a wooden frame and many angles.
As sure as I can be without knowing, read it in several posts on the forum.
What does it have to do with then?
There may be types for other uses too, I've only used and read about stuff used in bathrooms etc.
With paper on top, it stays dry indeed, and if you say what you're going to do, one should assume that the seller knows what you need, at least if you buy from a proper company, i.e. not Bauhaus and the like
What does it have to do with then?
There may be types for other uses too, I've only used and read about stuff used in bathrooms etc.
With paper on top, it stays dry indeed, and if you say what you're going to do, one should assume that the seller knows what you need, at least if you buy from a proper company, i.e. not Bauhaus and the like
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