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 Post subject: Floor level 25mm too low
PostPosted: Sun Oct 22, 2017 8:25 pm 
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I'm after some advice please. Just built (not personally! ) a 6m x 4m extension to the back of the house When we broke through to the main building it seems we are 25mm too low with the new concrete floor. We intend tiling the new floor to match the existing tiled floor. What are the options to bring the new floor up for tiling please. Got a quote for 0.6m3 of pumped liquid screed but they want about £800 because there's a minimum quantity. Any suggestions please Thanks


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PostPosted: Sun Oct 22, 2017 9:49 pm 
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Is it currently 25mm below existing finished floor level? if it is then an application of floor levelling compound prior to tiling should suffice, the tiles and adhesive would probably take up about 15mm so to do a 10mm layer of leveller over 24sq m would need about 15 x 25kg bags.

All subject to what thickness the tiles are, trowel notch size etc etc of course.


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PostPosted: Sun Oct 22, 2017 10:05 pm 
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I wouldve thought it would be normal to break through before insulation and screed, otherwise how would the wall thickness of the original house be dealt with?

As above, if the 25mm includes the tile thickness self level would be ok


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PostPosted: Sun Oct 22, 2017 10:50 pm 
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Thanks for replying so quickly Appreciated. I'll chip some tiles off and get an accurate measurement in the morning Cheers


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PostPosted: Mon Oct 23, 2017 1:24 am 
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surprised theres no door openings in knock throuh or at least remove a few bricks to find FFL? this is down to your builderif you didnt do it.your supposed to work to a benchmark.
do the DPCs tie in from extn to house an how does builder propos to bridge the knock throuh threshold to allow tiles to run into main house??
picking up 25mm or so is simple once you sort out how your goin to do the job.


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