<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=utf-8"> <META NAME="Generator" CONTENT="MS Exchange Server version 5.5.2658.34"> <TITLE>RE: [esp-r] Re: The position of low-e coating in double glass.</TITLE> </HEAD> <BODY> Hi Jon, generally, I agree with you. However, in hectic times, ESP-r is a bit too around the corner at places, here. I do not exactly remember where, but emissivity is / can be entered at more than one place - only one of which is relevant - in connection with constructions / materials (maybe true only for transparent materials). What I do certainly remember (and what we hopefully wrote to you at some point and what has been fixed in the mean time?) is that the QA report *did not* correctly report the emissivity values actually used. We hat quite a mixup due to this at the time. And, my suggestion was to *check* what values are being used in the .con file. Not necessarily edit them (because of what you write). Regards, Achim Mit freundlichen Grüssen / Best regards   Achim Geissler > -----Original Message----- > From: Jon Hand (clcv10) [<A HREF="mailto:jon@esru.strath.ac.uk">mailto:jon@esru.strath.ac.uk</A>] > Sent: Monday, December 11, 2006 6:45 PM > To: Ery Djunaedy > Cc: Geissler Achim; esp-r@lists.strath.ac.uk; 안빈낙도 > Subject: Re: [esp-r] Re: The position of low-e coating in double glass. > > > A reminder about changing emissivity.... > > There has been some discussion about editing zone construction > files. This is not a good idea in terms of QA (because the changes can > be easily lost and some subtle errors can creep in when people > manually edit files). > > The best way of doing it is to use the materials database and get a > copy of the standard materials database into your model (there is > an option in the project manager to do this) and then find a material > that is similar to what you want an make a copy of it and change the > surface properties as necessary as well as changing the documentation > of the material to reflect what you changed and what the original > was. > > Then in your construction database use the new material and the > altered surface properties will be imported into your model files. > > Again - it is not a good idea to manually edit the zone files! > > -ESRU </BODY> </HTML>