• Welcome to The Building Code Forum

    Your premier resource for building code knowledge.

    This forum remains free to the public thanks to the generous support of our Sawhorse Members and Corporate Sponsors. Their contributions help keep this community thriving and accessible.

    Want enhanced access to expert discussions and exclusive features? Learn more about the benefits here.

    Ready to upgrade? Log in and upgrade now.

Roof Truss Installation Problems .. ICE>>>>>

Mule

Mule

REGISTERED
Joined
Oct 19, 2009
Messages
1,520
Location
Texas
Okay.. our jurisdiction has not had a residential roof truss installed since.......... Many many years! The builders AND framers just don't know that sometimes trusses are required to be installed a specific way!

What do those little red tags on the trusses mean? This part has to be over a wall???? Really?

Duhhh read the tag!!

402352980.jpg


You mean I'm not supposed to cut the main support leg?

402352984.jpg


Well since I cut it does that mean that it no longer has to be on a load bearing wall?

402353194.jpg
 
These were just a few problems... There were several more areas but no need to post those pictures because one picture covers several others just like it!
 
Mule said:
Duhhh read the tag!!
Click to expand...
I suspect the wall was built when the trusses were set. Fixing this sort of crap will suck.

But not too much.

Truss engineers deal with it all the time.
 
Well.......we've spoke with the truss manufactuer. Apparently the trusses are designed to span from exterior wall to exterior wall.

Our comment was...Give us a letter stating that the way the trusses are installed is structurally safe.

The letter came back the the trusses AS DESIGNED are structurally safe!

We say...No that's not what we need! We need a letter specifying that the way the trusses are installed at this location is structurally safe.

We haven't received that letter yet!
 
i had one like this where bearing tags were in the middle of rooms and members cut etc... on 60 ft span three and 4 point bearing trusses. i shut the job down until the project engineer, architect and truss engineer could meet me on sight for a talk. most of the trusses had new webs installed with glued and stapled plywood sandwiches on most of the trusses. Those engineers can make a turd shine! ten years later and still no problems with the fixes.
 
Also... This is the first time I've seen this type of tag on a truss. The tag specified additional bracing required.

402357912.jpg
 
Mule said:
Well.......we've spoke with the truss manufactuer. Apparently the trusses are designed to span from exterior wall to exterior wall. Our comment was...Give us a letter stating that the way the trusses are installed is structurally safe. The letter came back the the trusses AS DESIGNED are structurally safe! We say...No that's not what we need! We need a letter specifying that the way the trusses are installed at this location is structurally safe. We haven't received that letter yet!
Click to expand...
If the truss manufacturer states that the trusses are designed for two point bearing, then I don't see a reasonable reason to demand something more...and this could be determined from the cut sheets anyway. Asking the manufacturer to verify proper placement is, in my opinion, something that you have been in the business long enough to know better than to expect.

If you have doubts, it's time to get the designer of record involved, not a specialty engineer.
 
brudgers said:
If the truss manufacturer states that the trusses are designed for two point bearing, then I don't see a reasonable reason to demand something more...and this could be determined from the cut sheets anyway.
Click to expand...
The cut sheets do not indicate they are designed for a two point bearing. I am requesting information from the truss manufactuer that the trusses as installed are manufactured for two point bearing....more or less!!!
 
You are correct Mule. The best design in the world is worthless if the installation is wrong. It matters where the rubber meets the road. Well okay, in this case where the truss meets the house. If it is designed for center bearing and has not been installed that way, Huston, we have a problem.
 
Mule said:
The cut sheets do not indicate they are designed for a two point bearing. I am requesting information from the truss manufactuer that the trusses as installed are manufactured for two point bearing....more or less!!!
Click to expand...
If the cut sheets show three point bearing, then it's time to require a design professional. Who the contractor gets to seal the fix shouldn't be your concern.

A local will probably be more responsive.
 
mule, nice photo's

pwood, how do you make a turd shine? Wax?

Truss designer may be able to put the truss design back up on his Square Headed Girlfrind and add a support leg and run the truss again, hoping that no red boxes pop up and send a dude out and make a field fix, submit paper work to the engineer that makes turd shine and make the inspector happy. Probably dance a jig, Texas two step, I would think!

pc1
 
Pick it up by the clean end and polish.

A church under construction had truss rollover here last week, luckily off hours, no one hurt. Bracing...

Mule check 802.10.1 reactions req'd, I do go over these sheets carefully to make sure we all stayed on the same page.
 
Pcinspector1 said:
mule, nice photo'spwood, how do you make a turd shine? Wax?

Truss designer may be able to put the truss design back up on his Square Headed Girlfrind and add a support leg and run the truss again, hoping that no red boxes pop up and send a dude out and make a field fix, submit paper work to the engineer that makes turd shine and make the inspector happy. Probably dance a jig, Texas two step, I would think!

pc1
Click to expand...
oh politically correct (pc) inspector only the professional ones have the knowledge to shine one. us lowly inspectors can only provide a dull sheen at best. :mrgreen:
 
Mule - nice pics indeed. Do you do weddings? I hear they are pretty lucrative. Side job. Side job.
 
You must log in or register to reply here.
Back
Top