barn raising !

[glennster]

my neighbor is putting up a new machine shed. 80x200 20 ft walls. roof is assembled and tomorrow they will use hydraulic jacks to lift it up and then put the wall in . wow

 

[caterpillar guy]

I would like to see how they do that.Sounds like a crash waiting to happen lifting a building that size up that much. Who's building (company) is that doing such a thing.

 

[glennster]

fbi building

 

[glennster]

here ya go

 

[Johnhof]

Very cleaver must save lots of crane time and allows a bunch of crews to work at once.

 

[rustred]

hope u get some good jack pic's. i know they use cranes for roof's but never saw jacks being used. better hope there is not one bit of wind. maybe call it razing the titanic!

 

[rustred]

too far away cant see the sign.

 

[55 50 Ron]

Must be a pretty prosperous neighbor to be building that in these shaky economic times.

 

[Hoenes]

Might be easier, handling the long roof sheets close to the ground. I would think there's going to be a certain amount of flexing during the jacking process, possibly causing leaks. Obviously, the computerized hydraulic system used on (expert mover) gigs, wouldn't be cost effective on something that big. They move light houses, historic brick buildings, and such. Computer controls all the jacks to a perfect level.

 

[Pete in MD]

Interesting. Hope you post more photos as the shed goes up.

 

[WI Dan]

-glennster
That's really interesting. I like it. Much safer for the workers doing the roof (insurance rates are lower).
I'm sure the crew has done it before. I bet the building was designed with jack points built into the framing. It will probably not flex more than an inch.
As a former carpenter: I see that big door header. I would much rather do that at 6' off the ground than 20' in the air!

 

[AL Moyer]

Pretty cool, I too would like to see the raising process, wondering how long of a event that is ?

 

[Stroby]

WOW, please post more as this progresses.

 

[8850dave]

I seen another FBI building go up just like this one 2 years ago when I was planting soybeans about 3/4 of a mile away, it went up fast when they raised it up with the jacks.

 

[DPittman]

They demonstrated that technique at FPO right next to antique row 2 years ago. Gave the building to the college next door after the show. Pretty cool

 

[Geo-TH,In]

Wow, that would be something to see.

I raised the roof of my sister's boat dock.

I used cables, pulleys, 2x4s, and the boat lift.

I got the roof 28 inches higher. High enough so we wouldn't bang our head on the roof and boat lift pulley.

Many said it couldn't be done.

Still standing 15 years later.

 

[IaLeo]

Think of the forces on that roof when a good stiff breeze blows across it!

 

[Bonnan]

How many jacking points are there?

 

[jddrawbar]

The raising would be something to see....admission fee, I'd pay.

 

[john in la]

Around here in flood prone areas they take a house built on the ground and drive telephone type post down both sides.
They then jack up the entire house 10 to 15 feet in the air and connect the post with joist to sit the house on.

They do the same thing with mobile homes.
Lots of mobile homes 15 to 20 feet in the air around here.