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How Do You Guys Set Your First Truss?

 
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Old 04-06-2009, 12:03 AM   #21
 
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Re: How Do You Guys Set Your First Truss?


The yellow things are the latest from Dewalt. Designed in area 51.
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Old 04-06-2009, 12:46 AM   #22
 
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Re: How Do You Guys Set Your First Truss?


I set my outlooks and sheet witha couple of strongbacks,6'; then card em out one at a time paul hahn style
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Old 04-06-2009, 12:49 AM   #23
 
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Re: How Do You Guys Set Your First Truss?


let me rephrase sheet ,outlooks , stronback.
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Old 04-17-2009, 05:43 PM   #24
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Re: How Do You Guys Set Your First Truss?


The last truss job was a garage 30 x 40 and the truss span was 30ft. These trusses had a 12/12 pitch and was a bitch to set and shingle. They were attic trusses with a 12 ft wide x 40 room for storage above the garage. We set the drop gable truss first and it was a 3 1/2 inch drop ,then we had to skip one and then double the next truss for the stairs to be installed. That is the toughest way to do a roof for sure. After we got the first few up i got a friend with a boom to help set the rest. That is much easier and safer than setting by hand.

The bracing on the first truss is the most important and after a few are up then its much easier to brace the rest as they get set.We have a pile of 16ft 2x4 all layed out for bracing and we put them on so the sheathing can start asap. We always try to get some sheating on as soon as we can to help with bracing.

I am wondering how many use the drop gable setup for overhangs?
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Old 04-17-2009, 07:58 PM   #25
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Re: How Do You Guys Set Your First Truss?


If its not windy I set the gable first. Braces to floor. If it is, truss first gables last. I have used the metal layout things they are cool. One thing I do that I dont think was mentioned is use 25 1/2" 2x4's for layout sticks. No wood in the way for the next truss. The crane operator has a metal jig to set two trusses at once. If the floor plan has a wall somewhere close to the center of the house I have a guy there to hold the trusses. As soon as the trusses are set down he's holding them, with help from guys at both ends. Crane takes off then layout sticks applied. 25 1/2" layout sticks put on before the crane gets back with the next ones. This system worked well when I was doing tract home type houses. 1900 sq. ft. two end gables. Gable on the garage. Best time was 1hr. 45min.
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Old 04-17-2009, 08:02 PM   #26
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Re: How Do You Guys Set Your First Truss?


Quote:
Originally Posted by Csavage1 View Post
The last truss job was a garage 30 x 40 and the truss span was 30ft. These trusses had a 12/12 pitch and was a bitch to set and shingle. They were attic trusses with a 12 ft wide x 40 room for storage above the garage. We set the drop gable truss first and it was a 3 1/2 inch drop ,then we had to skip one and then double the next truss for the stairs to be installed. That is the toughest way to do a roof for sure. After we got the first few up i got a friend with a boom to help set the rest. That is much easier and safer than setting by hand.

The bracing on the first truss is the most important and after a few are up then its much easier to brace the rest as they get set.We have a pile of 16ft 2x4 all layed out for bracing and we put them on so the sheathing can start asap. We always try to get some sheating on as soon as we can to help with bracing.

I am wondering how many use the drop gable setup for overhangs?
I have used the drop gable setup on a few jobs. Build the rakes on the ground then throw em up.
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Old 04-19-2009, 09:35 AM   #27
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Re: How Do You Guys Set Your First Truss?


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I have used the drop gable setup on a few jobs. Build the rakes on the ground then throw em up.
we always get drop gables.
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Old 02-12-2012, 12:18 AM   #28
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Re: How Do You Guys Set Your First Truss?


temp bracing.
Gable truss sheat it before standing it first. If by hand set 3 studs under the truss level with the top of the 3 walls sheat it then stand it. nail it to the temps on the outside wall. set your pre cut 25 1/2 blocks with the 16d nail that have been set at each end of those blocks so that they r ready asap for all your trusses after u have set the gable and 3 other trusses now u have the room to bring in long plates to brace up thru the trusses to the gable. repeat. have fun stay stay safe. ps after you run your 1st run of plywood you can knock off those 25 1/2 blocks .
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Old 02-18-2012, 07:17 PM   #29
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Re: How Do You Guys Set Your First Truss?


Support the first one Stand the rest. Install two vertical 2x4's from an end wall, typically nailed into studs, one third of the way in from both sides of truss for support. Then support the rest of the trusses from that supported truss using 2x's two thirds up the truss connecting the next trusses as you spread them out. Mark these 2x's every two feet and nail the rest of the trusses on your marks. As you do this install the 22 1/2 inch bird blocks where the top plates and trusses meet.



Last edited by Herboth; 02-18-2012 at 07:41 PM.
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Old 02-18-2012, 07:47 PM   #30
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Re: How Do You Guys Set Your First Truss?


I've never built with trusses before. Always stick-built. But I have a project coming up where I'll be doing all the work on a 24' x 36' x 12' high garage/barn by myself. I'm planning on using a method similar to the one KentWhitten described except that I plan on fastening uprights to the inside of the 2x4 gable wall and then blocking 2" over so that the gable truss will be flush with the outside with nothing in the way of installing the exterior sheathing. My exterior sheathing will be 3/4" T&G OSB (applied horizontally). I plan to rip the first (bottom) row to 2' wide so that the sheathing will bridge the transition between wall and gable (for additional strength). I figure I should "L" a couple of 2x4's (as shown in the sketch) for the uprights. I worry that a gust of wind might break a single 2x4.

Then again, I might stick build the gable wall (still using the bracing described above).
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Old 02-18-2012, 08:42 PM   #31
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Re: How Do You Guys Set Your First Truss?


If you put your uprights on the outside, you can hang the drop gable truss on the walls inside(upside down), and just flip it up to the bracing...

Bracing on the inside would make that first one a bit more difficult...


Go with the drop gable.... much easier
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Old 02-20-2012, 09:29 AM   #32
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Re: How Do You Guys Set Your First Truss?


*changing post to add more detail and clarify for the Op after re-reading the original post.

First off I have always had a crane available to set the trusses so the way I do it requires that first and foremost. For a gable truss ( which I always start at and sheet first as well as overhangs when I can) I will nail a 2x4 flat on top of the wall receiving the gable end truss a 1 1/2" in from the outside. ( this acts as a sheet rock nailer ( just make sure there is not a vaulted room along this wall ) on the inside as well as a place to attache the truss) I will also stick this 2x4 out one end ( the end which has the most uniform tails ) the distance of the overhang so I can attach my string line to it. Then we nail a 2 foot or so block on the outside of the wall ( along a stud) a few feet off center each way sticking up about a foot. The truss will set in between the 2 blocks and the flat 2x4. Once the truss is in you reach over at each end and nail it to the flat 2x4 through the bottom web of the truss and have someone reach out a window or on an extension ladder to nail it off the rest of the way. Then as the crane holds it up we run braces from the floor up to a vertical web in the truss at an angle that keeps it out of the way of the next truss at the plate height. We usually try to locate a brace at the midpoint of the roof line where my 25 1/2 spacers will be placed ( precut 1x4 with nails set 3/4" in on each end) and one or two braces near the middle of the truss ( as close to lvl as you can get a truss swinging from a crane) down to the top of the walls at an angle that keeps them out of the way of the next truss.

If there are no walls near the middle of the truss I have run a 16' 2x10 against the inside of the gable wall in line with a vertical web of the truss and a stud, on edge so it is perpendicular to the wall. Then "scab" some plywood to the stud and 2x10 and the truss and 2x10 ( ideally the plywood would be ripped down the width of the 2x4 wall and a 2x10 i.e 12 3/4) Once a few braces are in place ( of course the amount of braces depends on the length of the truss) and it is nailed off at the bottom I feel comfortable enough to detach the crane and send it for the next truss. After a few trusses are in we run better bracing as we wait for the crane to get a truss. With a good crew and the right prep things often go very smooth and to the satisfaction of all.

I have a question for those who have set trusses often....Have you ever done it like the truss company recommends? If you don't know what I mean this question is not for you. I just wonder because I never have and chuckle at the though of how much it would cost to use all that bracing they show in the paperwork that comes with every set of truss plans. Not to mention the safety requirements that would be needed for someone to get to the top of a recently set truss (being held up by a crane) to nail said braces. Not that they shouldn't be put up in a manner different then the paperwork ....But really...if we all did how much would the cost of trusses go up vs stick built.

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Old 02-20-2012, 11:21 AM   #33
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Re: How Do You Guys Set Your First Truss?


build a scaffold 3" below your plateline offset center by 4" then start a bulletproof brace OUTSIDE your wall. extend it to the exact height of your run with a pitch cut on the top. that way you can start bracing off it and have less of a chance of the truss dropping off the gable end.
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Old 02-20-2012, 05:00 PM   #34
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Re: How Do You Guys Set Your First Truss?


I do the Truss extra bracing but only after the trusses have been partially sheeted. some of the bracing that just has you install a 2x4 flat, which forms a T shape, baffles me what that does for the truss's strength.
Also, an old timer showed me that sheetrock nailer trick and I use it every time. Less splitting of the bottom cord because you can nail straight into the sheetrock nailer (Install the sheetrock nailer to the top plate first) and no diaganal nailing into the top plates which can cause the bottom cord to split.

Last edited by Herboth; 02-20-2012 at 05:06 PM. Reason: adding more.
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Old 02-22-2012, 10:21 AM   #35
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Re: How Do You Guys Set Your First Truss?


explain that old timer trick a little more. are you running a 1x6 on top of a 2x4 wall then 1x4ing the bottom of all the rest of the ceiling?
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Old 02-22-2012, 05:00 PM   #36
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Re: How Do You Guys Set Your First Truss?


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explain that old timer trick a little more. are you running a 1x6 on top of a 2x4 wall then 1x4ing the bottom of all the rest of the ceiling?
No you use a 2x4 on top of 2x4 walls or 2x6 on top of 2x6 walls. Think of it like this. You are adding a third top plate on top of the wall running under the length of the gable truss. But instead of nailing this 2x4 flush to the outside of the top plate you slide the whole thing in 1 1/2" so now an 1 1/2 of it is acting as a sheet rock nailer and you have an 1 1/2" on the outside which is only the two top plates where your truss sits.
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Old 02-22-2012, 07:06 PM   #37
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Re: How Do You Guys Set Your First Truss?


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No you use a 2x4 on top of 2x4 walls or 2x6 on top of 2x6 walls. Think of it like this. You are adding a third top plate on top of the wall running under the length of the gable truss. But instead of nailing this 2x4 flush to the outside of the top plate you slide the whole thing in 1 1/2" so now an 1 1/2 of it is acting as a sheet rock nailer and you have an 1 1/2" on the outside which is only the two top plates where your truss sits.
2nd the yankee way I always put down my drywall backing first then I can nail the gable truss to it and it will stand with out bracing, at least till you get the next truss blocked to it I also put my ridge block and the metal on before I stand it up and the 2nd truss nails to it
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Old 02-22-2012, 07:36 PM   #38
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Re: How Do You Guys Set Your First Truss?


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2nd the yankee way I always put down my drywall backing first then I can nail the gable truss to it and it will stand with out bracing, at least till you get the next truss blocked to it I also put my ridge block and the metal on before I stand it up and the 2nd truss nails to it
I was there (Hawaii) recently but don't remember if you have high winds very much. It'd be my luck that a gust would come up if I didn't somehow brace it somehow.
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Old 02-22-2012, 08:47 PM   #39
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Re: How Do You Guys Set Your First Truss?


I have never had the stones to tell the crane to let go after I nailed it to the nailer on top of the wall. A few braces are going on it before I ever tell the crane to let go ( they are always sheeted). Unless it is a tiny front gable one of us can hold. Though I do feel comfortable enough putting the braces at an extreme angle to stay out of the way of the next truss.
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Old 02-22-2012, 08:56 PM   #40
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Re: How Do You Guys Set Your First Truss?


I just put a flat 2x4 up the wall and put 1 nail through the gable to it then unhook the crane. Unless its windy. I usually build a rat run though, then a guy can stay in the middle and keep a hand on it while I climb down after unhooking the crane.

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