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?
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.I was thinking the opposite, was thinking how can you go wrong those boards are so rigid
I had a pallet direct from Encon. All stacked flat and still bent like a banana.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
That's exactly what I reckon.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.
I laughing face this.... but confirm or deny nothing!
Not sure your point , would be only a few degrees temperature difference between bonding in factory and temp on siteYes but dissimilar materials act differently at same temperature don't they?
Well whatever the reason, it's more common to see bowed boards than straight.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