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Chasbean1, thanks for the reply again. I agree chasing the wind is problematic. For years we have just measured and controled from the average of four sensors on the roof. this has been ok at best and difficult. We do not have return fans, but there has been a push to convince some to just...

Show, thank you for the article. It is interesting. Zesti, I understand your comment regarding our "stringent requirements". The requirements are there, but the argument is if we have been doing it correctly. I agree that averaging the sensors is not taking into acount the hightest...

Thanks all for your replies. Chasbean, I have thought about not actively controlling the pressurization, but that seems to be a non-starter with my boss. We have fairly stringent requiremnts for building pressurization and are currently controlling to ambient with just normal differential...

We have a running debate at work about building pressurization and the effect wind has. We all agree that wind can have an affect, but ASHRAE etc all pretty much say to control to ambient pressure and minimize wind effect rather than control to maximum stagnation pressure on the building. What...