Doors and Windows - aluminum hangar door

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hangartreasures
10-15-09, 07:52 AM
so i recently started doing handy work at an airplane hangar.

it has a 100 foot wide aluminum bi-fold door. the bottom half of it has expeirenced some warping and shifting causing screws to loosen and even break.

to stop the shifting i was thinking about replacing old screws and then adding 2 more lines between the alreadyy existing screws which are ever 3 feet going upward.

does anyone think this will distribute the pressure more evenly or have any bettter ideas?

lefty
10-15-09, 11:59 AM
hangartreasures,

Welcome to the forums.

Replacing the old screws and adding more certainly wouldn't hurt. I'm thinking that lubricating the guide track on top would also help. Sight unseen, I would suggest spray silicone for that, unless there has already been something else up there (like grease or oil), in which case I would stay with that.
chandler
10-15-09, 07:24 PM
If the doors are hollow framed, it may help to bolster the edges with possibly wood inserts and rescrewing it all together. Without pix, however, we're just guessing. Could you post a couple of pix on a site such as photobucket.com and copy/paste the IMG code to your reply post?