Laying flooring ply.

[maggeo13]

Hi,
I'm ready to lay 22mm flooring ply in a kitchen and bathroom, should the ply be glued and screwed to the joists and at the butting edges?. It isn't t&g like the chipboard layed upstairs.

 

[Richard C]

All edges must be supported either along the centre line of a joist or by fitting intermediate noggins. Are you tiling over it?

 

[maggeo13]

No, not tiling, it will be vinyl.
By intermediate noggins do you mean from joist to joist (maybe 2 noggins at each board join) or from joist to joist then another bit of timber parallel to joists?.

 

[Richard C]

To support the edges of any boards running across the joists, fix 50mmm wide noggins at 90 degrees between adjacent joists; position joints parallel with the joists down the centre line of a joist. I would advise you use WBP not ordinary ply & fix with screws not nails.