Double boarding floor

[gcharlt]

Can someone help please i have screwed and glued a wyeroc floor but need to double board it as it needs a further 20mm.
I want ti add ply but not sure how to fix the ply to the wyeroc
Do i glue and nail,glue and screw etc
Any help would be appreciated

 

[DAZB]

Glue and screws would be a better option than glue and nails.

 

[Deleted member 174758]

Lay the next skin at right angles to the first and stagger the joints

 

[gcharlt]

Thanks for the swift reply, could you advise what screws would be best suited to avoid any future squeaking etc.
I have used the spax TX countersunk 4.5 x 60mm flooring screws for the weyrock but not sure if they are best suited or an overkill for the ply.
Many thanks

 

[Deleted member 174758]

I generally use a collated screwdriver, but the flooring screws are something like 4.2 x 40mm to 4.5 x 50mm. Go for screws with either an unthreaded top end to the shank, or a reverse threaded portion just beneath the head as this avoids the noard jacking