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RE: Roof Sheathing at Ridges

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What I have detailed is providing 2x blocking every other bay each side of the opening for the ridge vent.  I'm sure it's rarely installed and it isn't a perfect detail, but I feel it's better than nothing at all.

Albert J. Meyer, Jr., P.E.
Martin Engineering
238 North 22nd Street
Philadelphia PA 19103-1004
(215) 665-8570
(215) 561-5064 Fax

-----Original Message-----
From: M. David Finley, P.E. [mailto:pec(--nospam--at)]
Sent: Tuesday, August 06, 2002 11:37 AM
To: seaint(--nospam--at)
Subject: Roof Sheathing at Ridges

I walked down the street yesterday evening to look at a house that is under construction.  The house is a 1-story with wood trusses.  It appears that a ridge vent will be used at the ridge line and I saw no indication of blocking near the ridge - in other words, the roof sheathing on each side of the ridge has a free edge (albiet only 2' long) between the trusses along the ridge line.  Is that typical?  I'm not a timber or house guy, but it seems to me that something more would be required there, especially in a high wind area.
M. David Finley, P.E.
3810 South First Street - Suite 7
Lake City, FL  32025