Sheathing and truss end blocking
Tiziano
| Posted in General Questions on
The APA page about Raised-Heel Trusses mentions that no truss blocking is needed if you’re overlapping the truss heels with the wall sheathing. They send me to IRC R602.10.8.2.
Is that best practice, or is skipping blocking at the top plate end of the trusses risky?
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Replies
Tiziano,
It’s really only necessary outside high seismic zones if either the truss manufacturer or an engineer calls it out.
If you are overlapping the sheathing:
- Think through where that occurs so the plywood effectively ties the walls and roof together. So for instance, don’t end up with a sheathing joint between the top plates.
- Make sure the overlapping sheathing doesn’t interfere with your strategy to air-seal between the walls and ceiling.
Makes sense. Thanks Malcolm.