Rasing 10' high 64' long sheathed walls...(cont'd)...
Ok, so here's how the jacks got mounted to the deck:
Attachment 42587
I used 12d duplex nails and made sure I hit an I-Joist with three of the six. There's a bracket that gets slipped under the top plate and nailed in with five 16d nails. I didn't get a shot of that, but can and will on the next wall.
Here's some of the insurance and bracing I had in place and ready:
Attachment 42588
Before we raised the wall, I attached a pair of 16' 2x6's to the end of the top plate, pointing towards the back of the shop, with 3" lag bolts. I didn't tighten the lags all way, so that the 2x6's would follow the wall being lifted. Once the wall was vertical, I added three more lags directly into the LVL beams.
Attachment 42589
It turns out that this insurance wasn't necessary, but it was cheap and easy so I did it anyway. I took some 4' scraps of 2x12, backed it with 1/2" OSB and lag bolted it to the LVL beams. I originally attached them with four 3" lags, but then added two 5" lags just to be safe. I thought if my metal straps somehow failed, these boards would stand a chance of keeping the wall from sliding off the deck. In the end, my metal straps did their jobs perfectly!!! They not only kept the wall from sliding off the deck, but they also positioned the wall exactly where I needed it to be since I attached them when I had the dry line in place before I started framing.
This is a REALLY neat feature of these jacks. They have built in adjustable wall stops:
Attachment 42590
You set the stop according to the height of your wall. As you're cranking on the cum-along, the wall will reach the stop and you can't crank anymore. In fact, it was a bit un-nerving since the wall kept moving after our last crank, but all it did was flop onto the stops. Turns out I measured and adjusted the stops pretty well since the wall is almost dead on plumb. I'll tweak it later, but for now it's pretty dang close.
Well folks, there you have it. I have to admit, I was a little nervous framing the walls as one piece monsters. But I knew I had a backup plan if the jacks failed.
I have to get back out there now and attach my outside and inside braces...(although those jacks are holding the walls steady as can be!). Once I have the braces in place, I'll finish attaching the Tyvek around the window and door openings.
Then tomorrow, I sheath the back wall, Tyvek it, and get to use the jacks again.
Here's to not having to use a backup plan:
Attachment 42591
- Marty (and Denise) -
)
Originally Posted by Marty Walsh
Great job on the wall-raising, and we'll all be staying tuned for further updates. You've got a bunch of us hooked on the story like housewives watching soap operas (eating bon-bons on the sofa, of course).
