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Old 05-15-2019, 06:58 PM   #16
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Re: hoisting pyramidal glass skylight 23 ft


we've used nylon straps for pipe, granite, steel - anything,,, just tie 2 straps onto opposing corners & tie off the straps so they won't slip,,, easy does it - NO quik moves !
this is just like setting bridge 35T beams - the crane (skytrak) does the work - laborers just hang onto tag lines, guide, & watch their fingers
this thing isn't that heavy - set it on dry ice - remove the slings - & it'll settle right into place
post a pic of you @ 121lbs soaking wet too
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Old 05-15-2019, 07:00 PM   #17
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Re: hoisting pyramidal glass skylight 23 ft


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Yes, haven't seen the 36' boom, but it is a skytrak as well. I still think dangling it from the forks if it could be secured and be rigid enough would be the best way. Then it could just be guided instead of manhandled into place. Pulling 240lbs off the forks that high up on ladders seems unweildy to me. And there's no place to tie off the men. btw..I'm one of them..and I'm not a man...and 121lbs soaking wet. But I can steer it into position with just a strap, as could guy on the other side. I like that idea best if I could be assured of the sling setup. Just a matter of not crashing into anything...just center and lower it down, right?
So if you could hang it from the forks can you get to where you would be able to set it right in place from above.
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Old 05-15-2019, 07:37 PM   #18
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Re: hoisting pyramidal glass skylight 23 ft


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So if you could hang it from the forks can you get to where you would be able to set it right in place from above.
Yes....it has framework that will guide it into position to the curb, once it is lowered enough to make contact. Then we could release the eye straps one at a time to put all the way to seat on the curb.

Not sure how gentle I need to be with the metal frame...it appears pretty soft.

But guess I could pad it out around the contact points at the corners. I think I need a kayak strap or something like that to quick release...profile is less bulky than ratchets and I hate using those anyway. i think they have a pretty heavy lift weight if memory serves. Thinking of using those to keep the eye straps tight and in place.
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Old 05-15-2019, 07:46 PM   #19
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Re: hoisting pyramidal glass skylight 23 ft


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we've used nylon straps for pipe, granite, steel - anything,,, just tie 2 straps onto opposing corners & tie off the straps so they won't slip,,, easy does it - NO quik moves !
this is just like setting bridge 35T beams - the crane (skytrak) does the work - laborers just hang onto tag lines, guide, & watch their fingers
this thing isn't that heavy - set it on dry ice - remove the slings - & it'll settle right into place
post a pic of you @ 121lbs soaking wet too
Only thing about nylon straps (like kayak straps with quick releases?) I have is they might cut into metal frame..if that's where you are talking about using them, or are you meaning to use them just as guides off the other hoist straps? That makes sense to me.
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Old 05-15-2019, 08:07 PM   #20
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Re: hoisting pyramidal glass skylight 23 ft


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Only thing about nylon straps (like kayak straps with quick releases?) I have is they might cut into metal frame..if that's where you are talking about using them, or are you meaning to use them just as guides off the other hoist straps? That makes sense to me.

Try this , 4 2x4s under it at 45 degrees with a 2x4 blok screwed across the joins
And the orange would be thicker blocks like a full 2" set across the corners of the curb to set it on so you can get the 2x4s out with a screw driver.
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Old 05-15-2019, 08:15 PM   #21
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Re: hoisting pyramidal glass skylight 23 ft


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Try this , 4 2x4s under it at 45 degrees with a 2x4 blok screwed across the joins
And the orange would be thicker blocks like a full 2" set across the corners of the curb to set it on so you can get the 2x4s out with a screw driver.
BEAUTIFUL DIAGRAM!!

What is the screw pattern for the 2x4 block? Is it below the diagonal corners and started from top or bottom? Can the straps be looped around the corners?
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Old 05-15-2019, 08:56 PM   #22
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Re: hoisting pyramidal glass skylight 23 ft


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BEAUTIFUL DIAGRAM!!

What is the screw pattern for the 2x4 block? Is it below the diagonal corners and started from top or bottom? Can the straps be looped around the corners?
Neal, I think your plan is perfection! Thank you soooo much!!
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Old 05-15-2019, 10:11 PM   #23
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Re: hoisting pyramidal glass skylight 23 ft


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Neal, I think your plan is perfection! Thank you soooo much!!
Remember this just an idea from some guy sitting at a desk the number and placement of screws will be up to you. Being sure the slings don't slip off a corner, maybe they should be tied in or around the 2x4 block on the corners. When we lift heavy stuff with a fork lift tie a 2x4 or 2x6 to the fork to so it bits good and not so slippery. That works with chains anyway.
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Old 05-16-2019, 05:57 AM   #24
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Re: hoisting pyramidal glass skylight 23 ft


Can screws be attached to the side of the window frame? If possible it would be easy to attach four sacrificial straps to the sides. Possibly keep them attached while you maneuver it into place, and then cut them just below the sealing flange.
With 4 straps each one only carries a 62.5 lb load so need for large straps. I think one inch nylon ratchet strap mat'l is rated at 500 or 1000 lbs.
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Old 05-16-2019, 08:50 AM   #25
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Re: hoisting pyramidal glass skylight 23 ft


Neal, So will I need metal L bracing at the 45's? If so, top and/or bottom?
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Old 05-16-2019, 09:02 AM   #26
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Re: hoisting pyramidal glass skylight 23 ft


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Neal, So will I need metal L bracing at the 45's? If so, top and/or bottom?
I wouldn't think so, not sure it matters if the blocks are above or below.
But you have to be sure you are happy before you lift it. There is any amount of over building you can get into, but someone pointed out it is less than 70 pounds at each corner.
When you do lift it. Just above the ground I would give it a little shake and see how it reacts to that, things you want to know before you have it 20 ft in the air.



You could do a test lift away from the house with 4 or 5 sheets of plywood.
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Old 05-16-2019, 09:16 AM   #27
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Re: hoisting pyramidal glass skylight 23 ft


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Can screws be attached to the side of the window frame? If possible it would be easy to attach four sacrificial straps to the sides. Possibly keep them attached while you maneuver it into place, and then cut them just below the sealing flange.
With 4 straps each one only carries a 62.5 lb load so need for large straps. I think one inch nylon ratchet strap mat'l is rated at 500 or 1000 lbs.
I think any strap I know of would carry that load...don't want to attach directly to frame as I want to not bend or mar it. Thanx for the weight breakdown. Seems like two friends on each side could lift the corners so I could slide the 2x under. That's a worry I have, as I don't want to affect the skylight's integrity.
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Old 05-16-2019, 09:19 AM   #28
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Re: hoisting pyramidal glass skylight 23 ft


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I wouldn't think so, not sure it matters if the blocks are above or below.
But you have to be sure you are happy before you lift it. There is any amount of over building you can get into, but someone pointed out it is less than 70 pounds at each corner.
When you do lift it. Just above the ground I would give it a little shake and see how it reacts to that, things you want to know before you have it 20 ft in the air.



You could do a test lift away from the house with 4 or 5 sheets of plywood.
Oh, I think I dreamed that last nite! I guess I was replacing the 2x4 block with metal L. Would that be a better way? Maybe carriage bolt it..might be easier to remove as well?

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Old 05-16-2019, 09:23 AM   #29
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Re: hoisting pyramidal glass skylight 23 ft


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Oh, I think I dreamed that last nite! I guess I was replacing the 2x4 block with metal L. Would that be a better way?

Sounds like over kill but wouldn't hurt. You do want to be sure as you will have people on ladders and in the air. Being sure is a good idea.
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Old 05-16-2019, 12:11 PM   #30
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Re: hoisting pyramidal glass skylight 23 ft


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Sounds like over kill but wouldn't hurt. You do want to be sure as you will have people on ladders and in the air. Being sure is a good idea.
I have 2 people on ladders at 12:00 and 9:00...a person running the skytrack. Nobody in the air....I think I can't do the personell cage if skylight is attached to the forks, unless there's a way to run it thru the floor of that. The person would be right above the skylight by I guess at few feet?

Not sure that person in bucket could do much..two on the sides would tho..especially if they have straps attached to the sling on both sides.
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