Re: Vent Manifold
Posted by Syvan Tieger on May 05, 2004 at 19:38:48:
In response to Re: Vent Manifold
: To repair some fire damage, we had new roof trusses, sheeting and composition roof installed. The existing vents (five 2" vents) were cut off before demo of existing roof. The roofing contractor installed two 3" roof jacks near the peak (heavy snow country) to handle the venting. My question is: Can five 2" vents manifold into two 3" vents through the roof?
: Thanks in advance.
: Rod

Rod, in theory your OK to use a 3" BUT Id go with a 4" vent terminal to make sure you do not get hoar frost.





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