Need Advice - Kitchen Hood/Makeup Air
My wife and I are building a new house in the Pittsburgh area and we are getting close to our pre-construction meeting and plan confirmation. Our builder has said that according to 2006 IRC any kitchen hood that will produce more than 3 Pa of negative pressure needs to have a make-up air system installed with it. For our home the pressure requirement converts to 400+ CFM hood and we will have a Bluestar RNB 36" range so we want > 400 CFM. Our appliance vendor has apparently never heard this before.
I dont know anything about makeup air, our builder said it could be installed in-line with the hood (Independant INBQ) but again our appliance folks said they have never heard of it.
Could someone enlighten me as to what exactly a make-up air system entails?
What viable work-arounds exist? (or are we violating our home warrenty if we try?).
I am also going to be looking for any manufacturer sites and calling Independant to see if they can straighten me out, any other sites that could help me figure out what we need to get done would also be appreciated.