I have been trying to find good info on how to properly seal a concrete terrace without getting any wiser. So now I thought I'd try here and see what you can help me with!
The house was built in 1964, but I believe the waterproofing layer on the terrace was redone, maybe in the '80s. It looks like a sandwich of concrete and then some rubber membrane (which is hard and cracked today) and then sand on top as some surface layer. (I hate the sand, it gets stuck on the feet and comes inside)
Now I want to redo it properly. I want to lower the level a few cm, it feels a bit uneasy to have it at the same level as the doors, seal it so no moisture gets in (under half the terrace storage, the other half root cellar with no entrance from inside).
Has anyone undertaken a similar project? What should one consider? Which sealing membrane should be used? I read about some asphalt? Then which surface layer? Tiles, casting with some kind of cement? And so on.
Please help me with this spring project!!
You should remove all the old material and seal any larger cracks in the concrete first.
Then you can either apply new mat (like roofing felt) or some kind of waterproofing layer, like Kiilto A+X or Protan G. On top of that, you'll need some "protection," such as concrete slabs in sand if you use felt, or with waterproofing you can lay wooden decking or tiles.
Then you can either apply new mat (like roofing felt) or some kind of waterproofing layer, like Kiilto A+X or Protan G. On top of that, you'll need some "protection," such as concrete slabs in sand if you use felt, or with waterproofing you can lay wooden decking or tiles.