Suggestions on how to stop this floor creaking

[SoundsGood]

Before I decorate this room I thought I'd have a go at stopping the floor creeking.
I've got the floor up and found that the noise occurs when the chipboard floor bends down away from the stud wall above it as someone walks across. The sound might be the nail rubbing as it pulls away from the wall.

I'm thinking of screw & gluing a 2x4 between the joists underneith near where the nail is.
Also considered screwing up into the stud wall but not sure I can get a drill in there.
Is there a better way?

 

[SimonR]

I had a similar issue where the sole plate of the wall had been nailed to the floor. which was flexing. I took the skirting off the wall and screwed at about 20 degrees from vertical through the sole plate, into the floor below at 12" centres. That cured it.

 

[SoundsGood]

I had a similar issue where the sole plate of the wall had been nailed to the floor. which was flexing. I took the skirting off the wall and screwed at about 20 degrees from vertical through the sole plate, into the floor below at 12" centres. That cured it.

If I hadn't already pulled the floor up I would've given that a go but didn't fancy pulling the skirting off as well.

I managed to get some 80mm screws in from below and the first screw solved 99% of it but I put 3 in each side just in case. I've put a couple of 40mm battons on each side of the door as well to support where I've cut the board.

If it stays as quiet as it is now I'll be happy with that.

 

[Maccapacca]

Parge CT1 everywhere

It solves everything

 

[theone8181]

I hate chipboard floors, we have them upstairs and they all squeak/creak and the builders put them down before putting the internal walls up so it's a big job taking them up.

 

[Mysterae_]

Try some of this:

 

[ants83]

Try some of this:

That's great i need to do mine also at some point.

I just read for stairs if you use a car jack to lift the lip and the fill the gap with grip fill this will also work and stop squeaks.

 

[Semple]

Parge CT1 everywhere

It solves everything

Is that just gluing the floorboards to the joists?

I was hoping to sort out our creaky landing stairs before we had a new carpet put down. But in a newish house the size of the floorboards are massive, and must span a good 2m + as a square. Which meant the only way I could have sorted it out was by cutting up the floorboards.

 

[SoundsGood]

Try some of this:

I did actually do this as well as I'd seen that video last night. But that alone wouldn't have done it as the sound was from the floor moving away from the wall above.

This is the video that gave me confidence to cut the floor up

 

[bigfoot4616]

That's great i need to do mine also at some point.

I just read for stairs if you use a car jack to lift the lip and the fill the gap with grip fill this will also work and stop squeaks.

just gone a bit further than that on my stairs, they where quite bad though and 5 treads had splits running right accross them. also someone in the past had tried screwing the bottom of the risers into the back of the treads and made a right mess of it by not drilling pilot holes.

i fixed 3/4 ply under every tread with screws and PU, also put a bead of PU under the splits so when i fixed the ply it expanded up through the top. then fixed more ply to the back of the risers and also to the ply under the treads and then fixed triangle blocks back under wherethe 2 bits of ply meet where the tread sits over the riser.
rock solid quiete stairs now.