Ventilation or no ventilation in spray foam insulated building?
I am planning to use open cell spray foam insulation in my metal building and then build out the interior. I have read two articles by Allision Bailes that seem to contradict one another concerning whether or not a home (or building) that has SPF should be ventilated or not. One article was entitled “Spray Foam Insulated Homes Need Ventilation” Posted on Oct 22 2014 by Allison A. Bailes III, PhD, GBA Advisor on Greenbuldingadvisor.com. The other article was posted on EnergyVanguard.com and was entitled “Beware of Roofers in Homes with Spray Foam Insulation” (Posted by Allison Bailes on Mon, Nov 18, 2013). We are planning to have LP heat and were told by the HVAC contractor that we would need a gable vent, but after reading these two articles, I am more confused than ever about the correct approach.
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