WWilts Posted January 24, 2022 Posted January 24, 2022 22mm T&G P5 chipboard D4 glue (Egger brand) being used. Mildly expanding. Spax Wirox screws. Read somewhere here 150mm centres for the screws. Just want to understand exactly what that means. Does that mean a) a 2400mm x 600mm board would take 64 screws? ie screws at 150mm centres in all directions? Or b) 2 times 4 screws (only short ends of board screwed to joists)
Russell griffiths Posted January 24, 2022 Posted January 24, 2022 Look on the board manufacturers website. And lots of glue. 1
PeterW Posted January 24, 2022 Posted January 24, 2022 6 minutes ago, Russell griffiths said: Look on the board manufacturers website. And lots of glue. +1 to this. You normally glue and screw down the first board, the rest are glued only. 1
nod Posted January 24, 2022 Posted January 24, 2022 (edited) 39 minutes ago, WWilts said: 22mm T&G P5 chipboard D4 glue (Egger brand) being used. Mildly expanding. Spax Wirox screws. Read somewhere here 150mm centres for the screws. Just want to understand exactly what that means. Does that mean a) a 2400mm x 600mm board would take 64 screws? ie screws at 150mm centres in all directions? Or b) 2 times 4 screws (only short ends of board screwed to joists) They are better glued and ring nailed Im guessing because you are using Egger because the floor will be open to the elements The problem with using screws is that the heads when sunk are leaving a lot of large holes for the water to get in While open to the elements Edited January 24, 2022 by nod 1
Mr Punter Posted January 24, 2022 Posted January 24, 2022 26 minutes ago, nod said: They are better glued and ring nailed Im guessing because you are using Egger because the floor will be open to the elements The problem with using screws is that the heads when sunk are leaving a lot of large holes for the water to get in While open to the elements I have seen it where all boards are glued, the first board also gets a nail, then after it is watertight the whole lot gets screwed. I am not sure the screws are needed, just what was specified. These were collated ones with a square drive head that was non standard size. If they missed a joist they would not sit flush and were a bastard to remove. 1
redtop Posted January 24, 2022 Posted January 24, 2022 We glued and screwed, otherwise glue can lift the board when it expands. I know as I went back and screwed some later and had problem. I didn't do such close spacing though, prob every 300mm with more around edge and less in centre 1
ToughButterCup Posted January 24, 2022 Posted January 24, 2022 58 minutes ago, PeterW said: ... the rest are glued only. Wha ? '... the rest glued only ...' ? Glued only? Advice coming three years too late shouldn't be allowed . Mine are glued and, every 400, screwed. A couple of people have mentioned that I tend to over-engineer stuff. Hmmmmm ...
redtop Posted January 24, 2022 Posted January 24, 2022 27 minutes ago, ToughButterCup said: Wha ? '... the rest glued only ...' ? Glued only? Advice coming three years too late shouldn't be allowed . Mine are glued and, every 400, screwed. A couple of people have mentioned that I tend to over-engineer stuff. Hmmmmm ... Well I copied you so we can possibly both be wrong
tonyshouse Posted January 24, 2022 Posted January 24, 2022 Ring shank gun nails for me 3’s n 2’s three in one joist two in the next in each sheet, never used glue except on floating floors, never had noises 1
Iceverge Posted January 24, 2022 Posted January 24, 2022 Did a floor with a mate last week. Used glue and 28 screws per 2440*1220 sheet. The reason that number was chosen was that was the amount of screws we had! Seems fine. A nail gun would have been much faster however. 1
CotswoldDoItUpper Posted January 24, 2022 Posted January 24, 2022 (edited) We didn’t glue (watertight refurb). Just 18 screws per 2400ish x 600 board (imperial joist spacing). Then laid UFH and heavy limestone. That was 3 months ago and no squeaks so far. Have we made a mistake? Not taking it up but he good to know! Edited January 24, 2022 by CotswoldDoItUpper
CotswoldDoItUpper Posted January 24, 2022 Posted January 24, 2022 4 hours ago, WWilts said: 22mm T&G P5 chipboard D4 glue (Egger brand) being used. Mildly expanding. Spax Wirox screws. Read somewhere here 150mm centres for the screws. Just want to understand exactly what that means. Does that mean a) a 2400mm x 600mm board would take 64 screws? ie screws at 150mm centres in all directions? Or b) 2 times 4 screws (only short ends of board screwed to joists) No point screwing at any more regular intervals then your joist spacing along the length. So 8 or 6 depending if you have 300 or 400 centres. 1
PeterW Posted January 24, 2022 Posted January 24, 2022 39 minutes ago, tonyshouse said: never used glue except on floating floors, never had noises And if you don’t use glue with Egger, there is no warranty irrespective of the failure … 1
tonyshouse Posted January 25, 2022 Posted January 25, 2022 Thankfully never had a warranty or any kind of claim either ?
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now