Maurizio,
I need to explore the possibility to use a ventilated roof for my last project. I think that is possible to model it with an air layer in TRNBuild, but I don't know how I can consider the ventilation effect in the gap. Do you have any idea?
Assuming I understand what you want to do correctly, you could use a fictitious zone to model the ventilated air layer in your roof structure.
Kind regards, Michaël Kummert -- _________________________________________________________ Michaël Kummert Solar Energy Laboratory - University of Wisconsin-Madison 1303 Engr Res Bldg, 1500 Engineering Drive Madison, WI 53706 Tel: +1 (608) 263-1589 Fax: +1 (608) 262-8464 E-mail: kummert@engr.wisc.edu SEL Web Site: http://sel.me.wisc.edu TRNSYS Web Site: http://sel.me.wisc.edu/trnsys