We are building a 3/12 shed roof with parallel trusses North of Ottawa (zone 6-7). The roof is sloping to the South. We're wondering about potential for venting problems during winter with North and NE winds, as we think the wind catching the North wall will disrupt the normal venting of the roof. The site is fairly protected but these winds will blow on and off throughout the winter.
Posted Nov 23, 2012 10:53 AM ET
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