Garage ceiling

Posted by stryped on October 19, 2009, 8:55 am

I have trusses on four foot centers. I plan on installinf between the
trusses 2x4 material every 4 feet so I can hang drywall or some other
board for a ceiling. My idea is to install these boards flat rather
than on edge so I can use r-30 insulation which is 30 inches wide.
Also, there are some places where I have wire that is in the way if I
put the boards on edge. I plan to nail or screw each end of these
boards between the bottom chord of the trusses.

I know the edge of the board is stronger than when layed flat. WIll I
have trouble with sagging? SHould I also space every 2 feet or will 4
be enough?

Posted by RicodJour on October 19, 2009, 11:57 am

> I have trusses on four foot centers. I plan on installinf between the
> trusses 2x4 material every 4 feet so I can hang drywall or some other
> board for a ceiling. My idea is to install these boards flat rather
> than on edge so I can use r-30 insulation which is 30 inches wide.
> Also, there are some places where I have wire that is in the way if I
> put the boards on edge. I plan to nail or screw each end of these
> boards between the bottom chord of the trusses.
> I know the edge of the board is stronger than when layed flat. WIll I
> have trouble with sagging? SHould I also space every 2 feet or will 4
> be enough?

Why do you keep posting the same crap? This is the fourth or fifth
thread you've started on your fookin' ceiling.

You've had a lot of people weigh in that you _can't_ just add weight
to the bottom chord of a truss without knowing if it is designed for
it. You can't...unless you want to find out the hard way what
happens when the bottom chord of a truss lets go.

People cautioned you about adding the load and gave you alternatives
for a lighter ceiling assembly.

What is the point of your asking for advice and then ignoring it and
asking the same question? Are you "answer shopping" until you get the
one you want to hear?

R

Posted by dadiOH on October 19, 2009, 4:20 pm

RicodJour wrote:

>> I have trusses on four foot centers. I plan on installinf between the
>> trusses 2x4 material every 4 feet so I can hang drywall or some other
>> board for a ceiling. My idea is to install these boards flat rather
>> than on edge so I can use r-30 insulation which is 30 inches wide.
>> Also, there are some places where I have wire that is in the way if I
>> put the boards on edge. I plan to nail or screw each end of these
>> boards between the bottom chord of the trusses.
>> I know the edge of the board is stronger than when layed flat. WIll I
>> have trouble with sagging? SHould I also space every 2 feet or will 4
>> be enough?

> Why do you keep posting the same crap? This is the fourth or fifth
> thread you've started on your fookin' ceiling.
> You've had a lot of people weigh in that you _can't_ just add weight
> to the bottom chord of a truss without knowing if it is designed for
> it. You can't...unless you want to find out the hard way what
> happens when the bottom chord of a truss lets go.
> People cautioned you about adding the load and gave you alternatives
> for a lighter ceiling assembly.
> What is the point of your asking for advice and then ignoring it and
> asking the same question? Are you "answer shopping" until you get the
> one you want to hear?

You don't remember his bed thread? Or the one about joining on a router
table? I see a pattern... :)

--

dadiOH
____________________________

dadiOH's dandies v3.06...
...a help file of info about MP3s, recording from
LP/cassette and tips & tricks on this and that.
Get it at http://mysite.verizon.net/xico

Posted by DD_BobK on October 19, 2009, 1:14 pm

Thread subject should be

Garage ceiling - Part II

OR

Garage ceiling - revisted

btw did you follow up on / execute on the last batch of suggestions?

what did the engineer, builder, desginer have to say?

Can the trusses handle the extra load? What is your plan to strengthen
the trusses?

do oyu have any technical or practical skills? are we going to see
your collapsed garage ceiling / roof on TV?

I cant see your garage from here

cheers
Bob

Posted by jamesgangnc on October 19, 2009, 1:36 pm

2x4s will sag with the weight of the dry wall if used that way. You
need to use them edgewise. Others who have mentioned that trusses are
not always engineered to support a load from the bottom are correct.
You might be able to build a short cripple wall and attach it between
the trusses at 90 deg. At least that way you'd be able to nail to the
top of the truss as well as the bottom. Don't know if 5/8 wall boad
would sag inside a 4'x4' opening.

What is above the trusses? That's quite a spacing. You don't have a
floor system above them do you?

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