Missing Ridge Board

[pdickerson]

This is a 2006 home. There are trusses on one side of the ridge and rafters on the other. The framer simply butted the rafters to the ends of the trusses. I haven't seen this before.

[Marcel R. Cyr]

Neither have I.

Where is the other half of the truss? ha. ha.

Is it possible that someone has developed a Mutant Truss.? ha.

Time to upgrade the glossary books and add sticktruss. or should I say sick truss. ha. ha.

Call out the engineers on this one.

Great find.

Marcel

[Kenton H. Shepard, CMI]

Originally Posted by pdickerson

This is a 2006 home. There are trusses on one side of the ridge and rafters on the other. The framer simply butted the rafters to the ends of the trusses. I haven't seen this before.

...and at least one he scabbed alongside the truss with only two nails.
Baaaa-aaad framer. No beer.

[Richard A. Hetzel]

A ridge board is simply a convenience, a nailer and no more, and performs no structural function. It is not unusual to find an older house framed exactly as shown, with no ridge board, Of course, there would be rafters on both sides, and no trusses. It may look strange, but it isn't inherently incorrect.

[Kenton H. Shepard, CMI]

Looks like they cut the sheathing back at the peak for a ridge vent, and like they so often do, the roofers ran their paper over it. If they hadn't papered over the opening, deleting the ridge would have allowed for better air flow through the vent.

[GARY L. RUSK]

This is very poor construction, are the trusses setting on a bearing wall? The ends of the rafters and trusses where they butt together should be approximately the same nominal size lumber, if you get heavy snow loads or wind shear in your area the rafter/rafters could split causing a section of the roof to sag or collapse, also no collar ties installed.


Gary


http://www.hsspropertyinspection.com/

[jlybolt]

This being a 2006 home and the fact there is no ridge board longer than the rafter I would recommend further evaluation.

[jlybolt]

In addition, the requirement for collar ties does not appear to be meet. I would Imagine you would want to have some kind system to tie this roof together. Even in older construction with no ridge beam I usaully see collar ties.

[Richard A. Hetzel]

If there is a truss on one side, it needs no collar ties, and then the rafters on the opposite side are effectively a shed roof, which also needs no collar ties. I don't see collar ties to be an issue. The main issue would seem to be the load on the inboard end of the rafters, and the ability of however many nails there are to carry that load to the truss. That, if anything, is what I think should be evaluated.

[jlybolt]

From my understanding, collar ties are used to help resist the tendency of the roof to push the exterior walls outward. This set up has no such provision from what I can see in the pictures.
Truss need no collar ties but they need appropiate lateral bracing to make them work as a whole. I wonder were the engineered truss drawings are? As for shed roofs, I believe your dealing with different loads being applied to the structure.

[Marcel R. Cyr]

This is what the ICC BB has to say about this subject.
Wow, who do you believe?
http://www.iccsafe.org/cgi-bin/ultim...;f=10;t=001392

I guess, the key words here would be collar ties, rafter ties, ridge beam, ridge board, truss, and proper application for the right purpose, as should be engineered.



Marcel

[Michael W. Gault]

Originally Posted by mcyr

This is what the ICC BB has to say about this subject.
Wow, who do you believe?
http://www.iccsafe.org/cgi-bin/ultim...;f=10;t=001392

I guess, the key words here would be collar ties, rafter ties, ridge beam, ridge board, truss, and proper application for the right purpose, as should be engineered.



Marcel

Obviously MODIFIED trusses.... SE callout... all the other is prattle...

[Marcel R. Cyr]

Framing dictionary with Pictures, I love that. ha. ha.

http://ah.bfn.org/a/DCTNRY/r/roofframing.html#crest

Marcel

[cgoyette]

Originally Posted by mgault

Obviously MODIFIED trusses.... SE callout... all the other is prattle...

Prattle.....Mike is giving us his Bill O'Riley impression!

Loved the use!

Curt

[Marcel R. Cyr]

Curt, glad you know what it meant, I don't have a clue. ha. ha.
Is that French for (parler de rien)? ha. ha.

Marcel