In my attic, there is first a layer of sand and then gravel around the chimney stack.
I would like to remove the sand and gravel, and instead cast around the chimney stack with liquid screed/cement.
My first question is, I suppose I will need some kind of movement joint against the wooden floor? How would you go about that?
The second question is, how would you cast it, and with what?
I have dug a little with my fingers and estimate that it is about 10-15 cm deep. Under the edge by the wooden floor, there is a joist that protrudes into the sand about 2-3 cm.
By the chimney stack, it becomes a few cm wider just below the sand surface.
I wonder if it's not the person who painted the wooden floor who thought it was nice with white gravel on the sand.
In my view from 1919, a collar is built to keep insulating materials (shavings) at a proper distance from the chimney. The sand probably serves the same function for you.
I wonder if it is the person who painted the wooden floor who thought it was nice with white gravel on the sand.
In my view from 1919, a collar has been built that keeps insulation materials (shavings) at a safe distance from the chimney. The sand probably serves the same function in your case.
It is surely the case that the gravel was added later. But I would really like to remove both the gravel and the sand. It's incredibly impractical with children in the house as it ends up everywhere.
No one else has anything more to add? Maybe casting is completely wrong considering heat distribution, but what would you have done instead to avoid the sand then?
I would have placed a disc that almost reaches the chimney stack.
Then covered it with a metal angle or angle iron.
Hello by the way, we are almost neighbors.
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Claes Sörmland said:
