Hello, I have recently had some bi-fold doors installed. They open and close fine with no stiffness or difficulties sliding back. However, when they are open all the way, they don't seem to sit upright when folded. Does anyone have any pointers on how to fix this?
Thanks
Whoa! You're not supposed to open and use bifolds like that!
You have to appreciate these doors as incredibly heavy; never move the leaf that hangs off another door such that it twists the door it's hanging off
In the attached picture I've added some coloured arrows
The weight of the door with the lock acts in the direction of the blue arrow. The area at the bottom indicated by the yellow arrow is bunched up against the wall, ultimately, and doesn't move. The top however is still free to move so this flapping door twists the entire door set in the direction of the red arrow
If this door were opened properly and aligned with the others then its weight would be pushing the bottom track into the house, and pulling the top track out of the house, but the tracks are adequately fixed and are able to resist this
To correctly open a bifolding set you open the door with the lock first, and fully fold it completely back on itself (180 degrees) til it is secured to the next door in the set (usually with a powerful magnet), then you undo the mechanism that lets the next doors fold and push the joint so that two doors collapse together, then you do the same with the next folding set. At no point does/should the flapping door ever be detached from the panel it's hinged off, until that panel is fully closed and secured
If that door just swings around in the wind and won't stay aligned with the others then its missing the securing device (magnet, catch etc) intended to lock it to the panel it's hinged off. Get the installers to resolve
See this video for a demo on how to open and close:
