spray foam to ventilate or not?

[crewchief437]

i just got my pole barn sprayed. if you have spray foam and an insulated space did you put a vent in or not. and if not have you had any problems? i talked to my AC guy and he wasnt totally sure if i would need a vent or not.

 

[Randy in Maine]

Is there any air to even vent?

 

[crewchief437]

A little from my roll up door. I'm more worried about condensation. But the unit should eliminate most moisture right? I'm in the deep south btw. Lots of humidity.

 

[Beemer533]

What kind of spray foam and how thick? Were all the walls and the roof sprayed?

For ventilation, are you referring to something like a soffit/Ridge vent?

 

[volleyball]

Did you need to vent it before? If you did then you still do. If you didn't was it because the place was fully vented due to holes?

 

[crewchief437]

2-3" closed cell on the walls 5-6"open cell on the ceiling. The building was made with a ridge vent on the roof. this was covered from the inside with foam. I was looking at maybe putting in a small louver or something like that. if im going to weld in the building should i vent other than opening the doors?