Bowed plastering

[Deleted member 32554]

What’s going on here? Friday night and all I’ve done is talk about plastering. This place is going downhill

The good news is it can only get better, do you want a bit of bonding chat

 

[stuart23]

The good news is it can only get better, do you want a bit of bonding chat

No

 

[stuart23]

First thing I’d do is check that piece of timber is straight.

Then say so, you Jock c**t.

Flat indeed.

Happy?

 

[Stevieo]

Happy?

Yes.

Now.

 

[essexandy]

I'm a little baffled how any of you know how pissed this work is when you can only see one end of the 'straight edge'? I'd want to see the full length of it, and where it contacts the wall.
Oh and @JessThePlasterer you know fuckall. No offence.

 

[Cockney]

I'm a little baffled how any of you know how pissed this work is when you can only see one end of the 'straight edge'? I'd want to see the full length of it, and where it contacts the wall.
Oh and @JessThePlasterer you know fuckall. No offence.

Yeah I’d like to see a straight edge start in a bit from the internal. could be the internal out of square rather than the whole board?

 

[ChrispyUK]

I was thinking the opposite, was thinking how can you go wrong those boards are so rigid

The thin ones aren’t too bad Jess, but the thicker boards are shite. Just done a house with 62.5mm boards and 25mm in a couple of areas. All you can do is try and get a line of best fit then bond them out. They’re bowed like bananas before they even see a dab.

 

[Deleted member 32554]

Never had a problem , poor storage , always collect my own boards and check floor level for stacking

 

[Ritch]

Never had a problem , poor storage , always collect my own boards and check floor level for stacking

Fuckk off pal y u sticking up for poorly manufactured boards

 

[Deleted member 32554]

Fuckk off pal y u sticking up for poorly manufactured boards

Not at all , foam is never flush with board , would prefer choice of thicker plasterboard but I don't buy bent or damaged ( always collect ) and stack flat , no problems

 

[ChrispyUK]

Not at all , foam is never flush with board , would prefer choice of thicker plasterboard but I don't buy bent or damaged ( always collect ) and stack flat , no problems

I had a pallet direct from Encon. All stacked flat and still bent like a banana.

Think the problem is due to two different bonded materials contracting/expanding at different rates causing the bow. Not so much off an issue with thinner boards. Can’t comment on the polystyrene backed boards as I don’t use them, just the PIR boards.

 

[essexandy]

I had a pallet direct from Encon. All stacked flat and still bent like a banana.

Think the problem is due to two different bonded materials contracting/expanding at different rates causing the bow. Not so much off an issue with thinner boards. Can’t comment on the polystyrene backed boards as I don’t use them, just the PIR boards.

That's exactly what I reckon.

 

[JessThePlasterer]

I'm a little baffled how any of you know how pissed this work is when you can only see one end of the 'straight edge'? I'd want to see the full length of it, and where it contacts the wall.
Oh and @JessThePlasterer you know fuckall. No offence.

I laughing face this.... but confirm or deny nothing!

 

[Deleted member 32554]

That's exactly what I reckon.

So at what temperature are the board and foam glued , both at the same I suspect and at no great difference to on site

 

[Vincey]

Thought same as @essexandy
Also thought there more to this story tbf

 

[essexandy]

So at what temperature are the board and foam glued , both at the same I suspect and at no great difference to on site

Yes but dissimilar materials act differently at same temperature don't they?

 

[Deleted member 32554]

Yes but dissimilar materials act differently at same temperature don't they?

Not sure your point , would be only a few degrees temperature difference between bonding in factory and temp on site
The expansion stress from this wouldn't stop a board from being stuck flat as its quite easy to bend when flattened with straight edge , it doesn't have enough force to spring back

 

[essexandy]

Not sure your point , would be only a few degrees temperature difference between bonding in factory and temp on site
The expansion stress from this wouldn't stop a board from being stuck flat as its quite easy to bend when flattened with straight edge , it doesn't have enough force to spring back

Well whatever the reason, it's more common to see bowed boards than straight.