R
robthebubble
I will explain overboarding of weyroc :
Weyroc (chipboars) is generally used as flooring in modern homes, the boards used are 2.4m long x 600mm wide. They are laid accross the joists and should be glued along the joists and edges.
Bare in mind that propper glueing is rare, the manufacturers say the glue stops squeeking but to squeek the have to move right
In time it is rare to find a floor that has not moved with settlement and the boards often exhibit deflection. Some floors I have seen have been layed with the joists and this creates high spots.
If your intention is to over board either with a substrate board or ply your aim is to reduce weak spots in the floor and prevent deflection. To do this you have to secure points of weaknes or the joints between the boards.
Overboarding should cross the existing joints and be screwed or fastened with ring/skew nails every 100-150mm
Because of the sizes of substrate boards then the more you use the more points of weakness or joints you will have, to help prevent this boards should be staggered (like brickwork).
This can be done with ply but obviously to a lesser extent due to size.
Personally in a room up to 5/6m2 ply is the answer, not only cheaper but makes for a stronger job.
Hope this helps out
tiler
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Yes Rob !
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Cheers Tiler, because of the shape of the floor I can get away with one sheet of ply so no joints to worry about! and as you have confirmed because I have loads of plasterboard screws I can use those. Just need to get the ply from the diy store to my house now!