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[SEAOC] ridge vent in wood roof diaphragm[Subject Prev][Subject Next][Thread Prev][Thread Next]
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- Subject: [SEAOC] ridge vent in wood roof diaphragm
- From: Rick Burch <rburchpe(--nospam--at)worldnet.att.net>
- Date: Wed, 11 Sep 1996 15:52:28 -0400
On pitched (gabled) wood roofs using plywood sheathing over either prefabricated wood trusses or stick-built rafter framing there quite often is a continuous ridge vent, which requires a continuous opening in the diaphragm a couple of inches wide along the ridgeline of the roof. 1. Does anyone have advice on how forces in the diaphragm are handled at this opening? In conjunction with the ridge vent (for air flow out), there often are continuous soffit vents (for air flow in) to provide the code-required ventilation of the attic space. Blocking in the spaces between the trusses for tranfer of diaphragm forces to the top plate unfortunately blocks this air flow. 2. Does anyone have advice on how these two conflicting requirements (structural force transfer vs. architectural ventilation requirements) can be handled? Rick Burch Columbia, SC ...
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