Fairly close. The usual declared dry density is 20kg for every 10mm depth that's because a 25kg bag is not fully compacted so in terms of volume it's different to 25kg of compacted laid screed. If that makes sense.
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Why? My house is timber floors and all the upstairs floors run out by 50mm plus mostly running from the central supporting wall to the outside supporting wall. It's due to time and settlement and slightly wonky building. I have no clue how I would RIP out and straighten up without massive disruption and some fairly robust building work upstairs and downstairs. My house was built in 1740... some houses are just a bit wonky. Ripping out is not really a viable solution.
Fairly close. The usual declared dry density is 20kg for every 10mm depth that's because a 25kg bag is not fully compacted so in terms of volume it's different to 25kg of compacted laid screed. If that makes sense.
[automerge]1583313095[/automerge]
Why? My house is timber floors and all the upstairs floors run out by 50mm plus mostly running from the central supporting wall to the outside supporting wall. It's due to time and settlement and slightly wonky building. I have no clue how I would RIP out and straighten up without massive disruption and some fairly robust building work upstairs and downstairs. My house was built in 1740... some houses are just a bit wonky. Ripping out is not really a viable solution.
Well, by the sounds of it, the poster wants a level floor. Taking up floorboards and sorting joists out isn’t THAT a major job. Better than a shed load of self level.
I'm the same as you, if it’s a old property, and the floors/walls are all over the place, then you work with what you’ve got.
Board in 6mm cement boards , board the back area gradually up in from the centre to the back , build the rest out in slc to the front end .
Easiest job in the world
Board in 6mm cement boards , board the back area gradually up in from the centre to the back , build the rest out in slc to the front end .
Easiest job in the world
It’s just as good as the other options ,and a lot easier and cheaper than lifting everything and re laying joints and floor boards .
I have done it loads in many houses
my effort on my wonky old house from the days pre spirit levels!! Well, strictly speaking not fully my effort. i had to lift the floor due to the old shower leaking and added the noggins, rescrewed/bolted the exisitng, replace the furthest joist, add in the second furthest since it was missing etc etc.
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