Dear colleagues,
I saw that studies usually assume a pressure difference of 1 Pa between inside and outside the building as a reference value in "real condition" (when air infiltration is driven by wind pressure and stack effect). But I also found somtimes people using 4 Pa (e.g. in French regulations) as a reference for pressure difference.
Does anyone know a book or a paper that provides the reference value for pressure difference and explains how this value is obtained ?
Thank you in advance
Martin