Limestone over ufh and chipboard

[On one]

Hey Rich,
Just been looking at Norboards website, here's their tiling spec.

Guidance as to construction of bases in respect to considerations and timber bases is given in BS 5385: Part 3: 1989. Tiling onto Caberfloor should be undertaken only in joisted / fixed floor constructions. Noggins should

be used between the joists at 300mm centres and the surface provided for tiling should be 15mm exterior grade plywood screwed to joists and noggins at 300mm centres. Existing boards can therefore be overlaid with 15mm exterior grade plywood to provide the necessary rigidity for a tiled surface. Length of fixings should be 2.5 times overall board thickness. A tile adhesive is the recommended bond material -cement/sand mortars are not recommended.

Perhaps it'll sway your client?

So......Am I correct in reading that as,the joists at 300mm centres and noggins at 300mm centres?
Well that aint gonna happen!

 

[Old Mod]

So......Am I correct in reading that as,the joists at 300mm centres and noggins at 300mm centres?
Well that aint gonna happen!

I think they maybe covering themselves! Haha

 

[Rich Midge]

Noggins at 300mm centres and overlay screwed down at 300mm centres is how I read it.

 

[Rich Midge]

Still can't quite believe that others were willing to tile the floor as it stood, 6mm ply and the odd ring nail should sort it 😉

 

[On one]

Noggins at 300mm centres and overlay screwed down at 300mm centres is how I read it.

Yeah,just reread it
but no mention of joist spacing? 600mm centres anyone!
But in effect 15mm becomes 18mm plywood due to availability,but why would you put ply down at all?