He did say his walls are plastered already mate. The weight of the hardi AND the porcelain tiles would be more than just the tiles alone in this case so it's not a fix using it. Or am I reading something wrong?
Tile weight on various surfaces
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DHTiling
As long as you can machanicaly fix as well then that is an option....hardi will not work if no fixings used as it is adding weight as Dan stated.
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White Room
Just a guide Tiles and Adhesive Weight Per Square Metre - THE TILE SOURCE
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tfs
would 12.5mm hardei not be best if goind down this route?
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tfs
is it over a render or is it stud walls?
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DHTiling
Good question..if it is stud then it's a NO NO..
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tfs
To the best of my knowledge Knuaf say that there aquapanel can be used with metal and timber studs, however, timber and metal studs are normaly spaced at 400mm centres on a stud wall however on some occasion you will find that this can be as much as 600mm with noggins/ dwangs centred in row roughly at the centre of the vertical studs which is realy not ideal as this leaves unsupported boards on an area of approx 1200mm x 360 (between all studs)
To add extra fixing at lower spaces you would realy need to rip off exiting sheeting and add extra framework to the partition adding an additional two noggins (one above centre noggin and one below) in between each vertical stud. This would give you extra fixings at smaller intervals and should give a far superior fixing to the stud work. I would preffer to use 12.5mm as it would be harder to come away from the studs than 6mm would.
To add extra fixing at lower spaces you would realy need to rip off exiting sheeting and add extra framework to the partition adding an additional two noggins (one above centre noggin and one below) in between each vertical stud. This would give you extra fixings at smaller intervals and should give a far superior fixing to the stud work. I would preffer to use 12.5mm as it would be harder to come away from the studs than 6mm would.
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tfs
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Richardk
Thanks again. I did consider mechanically fixing a backer board but the customer has already gone to the expense of re-plastering one wall already. The original plan, and quote, was to fix ceramics. The walls are plastered brick by the way. Customer is now looking to swap the tiles for ceramics.
