Hello to all, Could someone help me to understand the value that appears in *Ventilation Load *in the Room Checksums report ? My goal is to be able to check / calculate the value manually. But until now still can not understand what are the input data for the calculation I appreciate your help You can download the sheet at this link https://dl.dropboxusercontent.com/u/33152008/Room%20Check.JPG With best regards Leandro Lope*s* *Tel: **+351 965771706 <965771706>* Please don?t print this e-mail unless you really need to! 1