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Posted by Avasa on April 25, 2008, 8:35 am
about to order the floor joist system for my house, and have been
hearing different things about
open-truss-systems: they sound like having a drum under/over you, or:
they will make your
plumber/electrician (me.) weep with joy. any direct experiences? any
downside to wood-I (TJI)?
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Posted by hogheavenfarm on April 25, 2008, 11:19 am
We build 4 houses per week, and we used to use OJ 2000's . You are
correct in that the plumbers and electricians love them. They are
lighter, Great for PEX pipe and ductwork, with glued and properly
fastened flooring, we didn't have any 'drum' experiences. We did stop
using them about 5 years ago, mainly because modifcation of them is
impossible to do properly. If you need to cut one for a basement
stairwell modification, or adding a fireplace area, the structural
integrity of the joist is destroyed. Wood is easily modifiable down
the road, OJ's are not.
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Posted by tbasc@bellsouth.net on April 27, 2008, 8:11 am
> We build 4 houses per week, and we used to use OJ 2000's . You are
> correct in that the plumbers and electricians love them. They are
> lighter, Great for PEX pipe and ductwork, with glued and properly
> fastened flooring, we didn't have any 'drum' experiences. =A0We did stop
> using them about 5 years ago, mainly because modifcation of them is
> impossible to do properly. If you need to cut one for a basement
> stairwell modification, or adding a fireplace area, the structural
> integrity of the joist is destroyed. Wood is easily modifiable down
> the road, OJ's are not.
Two questions:
What do you use now?
Can't OJs be ordered to length?
T
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Posted by hogheavenfarm on April 28, 2008, 6:45 am
>
> > We build 4 houses per week, and we used to use OJ 2000's . You are
> > correct in that the plumbers and electricians love them. They are
> > lighter, Great for PEX pipe and ductwork, with glued and properly
> > fastened flooring, we didn't have any 'drum' experiences. =A0We did stop=
> > using them about 5 years ago, mainly because modifcation of them is
> > impossible to do properly. If you need to cut one for a basement
> > stairwell modification, or adding a fireplace area, the structural
> > integrity of the joist is destroyed. Wood is easily modifiable down
> > the road, OJ's are not.
>
> Two questions:
> What do you use now?
> Can't OJs be ordered to length?
> T
Yes, they can be ordered to length and actually must be, one of the
problems for us, instead of a lift of 2x10's we can cut ourselves,
each house must be kept seperate from the next, since all the lengths
will be different.
So it creates more inventory. As I pointed out, modification down the
road is not possible. If the homeowner, (or builder in our case),
decides to put in a basement staircase, you cannot cut the OJ's
without destroying their structural integrity. (There ARE ways of
course, but well above the average persons experience).
WE currently use 2x10's which we cut to length as needed. .
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Posted by John Grabowski on April 25, 2008, 7:17 pm
> about to order the floor joist system for my house, and have been
> hearing different things about
> open-truss-systems: they sound like having a drum under/over you, or:
> they will make your
> plumber/electrician (me.) weep with joy. any direct experiences? any
> downside to wood-I (TJI)?
I'm an electrician and I LOVE open trusses. Not only are they great during
new construction, but they also make alterations easier later on. The
second best thing are the I-Trusses with the pre-punch knockouts. As far as
how sturdy the floor is depends on your truss spacing and the thickness of
your subfloor. If you space your trusses 24" apart and use a 5/8" subfloor,
you will have a little flex in the floor.
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