do you worry about a roll off roof blowing off?
Posted 10 December 2013 - 01:47 AM
Posted 10 December 2013 - 02:34 AM
Posted 10 December 2013 - 06:52 AM
Then on the North Side I have a pin that locks into a plate bolted to the side of the building.
This is a no muss, no fuss system that allows me to run my Observatory remotely without worrying about manually locking the roof down.
Posted 10 December 2013 - 08:27 AM
I do not have the turnbuckles on the gantry so if the wind is much above 25mph I will close down or don't open it due to the possibility of the roof blowing off when in the open position. I am probably being paranoid about this as the roof weighs about 2000 pounds, but better safe than sorry! :o
Posted 10 December 2013 - 08:55 AM
Edit: They are all through bolted with nuts and washers, not lag type eye bolts for the strap versions.
Posted 10 December 2013 - 10:28 AM
Posted 10 December 2013 - 10:43 AM
Posted 10 December 2013 - 10:47 AM
Posted 10 December 2013 - 11:13 AM
really high winds (hurricane, blizzard etc) I add a couple
of heavy duty "C" clamps. The obs has been there for about
5 years and haven't had problems.
Posted 10 December 2013 - 11:30 AM
Posted 10 December 2013 - 11:54 AM
I do like your idea Galaxyhunter. I might have to do that for my new roll-off this spring!!
Posted 10 December 2013 - 11:59 AM
Posted 10 December 2013 - 12:09 PM
Out here in Wyoming the breeze will blow you away.
Posted 10 December 2013 - 01:45 PM
BUT ... if I had an ROR, I'd probably use toggle clamps. You can latch them very quickly, they're inexpensive, and hold a lot. These have a 700 pound holding capacity and are only $6.50 each. Two of them on a side (three for a larger ROR) should be pretty secure.
Posted 10 December 2013 - 03:09 PM
But I have a incorporated a little detail in my roller system that will not allow the roof to ever come off anyways, but I suppose it could move up and down a little bit if not clamped.
Posted 10 December 2013 - 03:12 PM
Posted 10 December 2013 - 05:27 PM
Dean -- i like your solution a lot -- a design that in general shouldn't ever allow it to lift off (under normal wind conditions) combined with the various turnbuckle, tie-down methods others have incorporated for a severe weather event.
did you extend the capture system (top plate on the support beam) to include the support rail extensions outside the observatory so it remains captive even in the open position?
i'm hoping to take something to my HOA in the near future. keeping my fingers crossed i can present a project plan that will pass their rigorous review process. (aesthetically and functionally).
Posted 11 December 2013 - 08:23 PM
Now, that was for 85mph winds. Turns out that our backyard is in a depression with many tall trees on the neighboring properties adding plenty of wind shielding. With my observatory weather station up since April, the maximum gust (not average) we have seen has been 19mph. I think my roof is safe
Posted 11 December 2013 - 10:24 PM
Make you roof hold down system twice as strong as you might think. You will be glad you did.
Posted 11 December 2013 - 10:51 PM
Posted 11 December 2013 - 11:27 PM
Posted 11 December 2013 - 11:43 PM
Posted 12 December 2013 - 01:54 PM
Posted 12 December 2013 - 07:01 PM