Exterior Wood Wall - can diagonal member be used in lieu of sheathing
Exterior Wood Wall - can diagonal member be used in lieu of sheathing
(OP)
In a cottage, the architectural drawings show no wood sheathing on the exterior face and 1/2" gypsum wallboard on the interior face. The contractor has provided a diagonal wood member.
The architectural drawings call for:
Exterior cladding (contractor used vinyl cladding)
1.4" rigid insulation
Metal corner bracing
2x6 studs @ 16
R23 bib insulation
6 mil vapour barrier
1/2" gypsum wallboard
Since there is no wood sheathing, presumably the diagonal member must take all the wind load down to the foundations.
Is that normally done?
Is it ok?
What is meant by "metal corner bracing"?
The architectural drawings call for:
Exterior cladding (contractor used vinyl cladding)
1.4" rigid insulation
Metal corner bracing
2x6 studs @ 16
R23 bib insulation
6 mil vapour barrier
1/2" gypsum wallboard
Since there is no wood sheathing, presumably the diagonal member must take all the wind load down to the foundations.
Is that normally done?
Is it ok?
What is meant by "metal corner bracing"?






RE: Exterior Wood Wall - can diagonal member be used in lieu of sheathing
RE: Exterior Wood Wall - can diagonal member be used in lieu of sheathing
Don't know what code you are under.
Check out Eng-Tips Forum's Policies here:
FAQ731-376: Eng-Tips.com Forum Policies
RE: Exterior Wood Wall - can diagonal member be used in lieu of sheathing
RE: Exterior Wood Wall - can diagonal member be used in lieu of sheathing
http://www.finehomebuilding.com/design/departments...
RE: Exterior Wood Wall - can diagonal member be used in lieu of sheathing
Are there any holddowns?
Mike McCann, PE, SE (WA)
RE: Exterior Wood Wall - can diagonal member be used in lieu of sheathing
It's crap, though. You can't make the loads work in statics. Gyp sheathing would make more sense. Of course, there is some requirement (I believe) for some kind of exterior covering to keep stuff from flying through the wall during a high wind event.
RE: Exterior Wood Wall - can diagonal member be used in lieu of sheathing
RE: Exterior Wood Wall - can diagonal member be used in lieu of sheathing
It is not as good as sheetrock or GSB. The GSB is stiffer, so use that value for the shear. The let-in bracing is just extra.
.
Mike McCann, PE, SE (WA)
RE: Exterior Wood Wall - can diagonal member be used in lieu of sheathing
Where a permanent let-in diagonal wood brace has been used, or a metal corner brace as called for on the drawings, does that make sheathing on the exterior face of the studs unnecessary?
Can the 1/2" gypsum wallboard on the interior side of the wall studs serve to take the place of the exterior sheathing, as far as the structural aspect is concerned to resist wind forces?
The Code is the Ontario Building Code, Part 9. It is very similar to the National Building Code of Canada.
RE: Exterior Wood Wall - can diagonal member be used in lieu of sheathing
Mike McCann, PE, SE (WA)
RE: Exterior Wood Wall - can diagonal member be used in lieu of sheathing
RE: Exterior Wood Wall - can diagonal member be used in lieu of sheathing
RE: Exterior Wood Wall - can diagonal member be used in lieu of sheathing
Mike McCann, PE, SE (WA)
RE: Exterior Wood Wall - can diagonal member be used in lieu of sheathing
CSA O86 clause 9.5.4. and tables 9.5.1B and 9.5.4
NBCC 9.23.13.1.2.(a).(ii)
RE: Exterior Wood Wall - can diagonal member be used in lieu of sheathing
RE: Exterior Wood Wall - can diagonal member be used in lieu of sheathing
RE: Exterior Wood Wall - can diagonal member be used in lieu of sheathing