When they meet at the 6th Annual North American Passive House Conference this week, the masters of super-sealed, ultra-insulated building design will be seeing and hearing about the latest SeriousWindows technology. Serious Energy will be exhibiting and, on the podium, co-presenters John Semmelhack of the Mid-Atlantic and Graham Irwin of Northern California, will be sharing their repeatable method for getting accurate predictions of actual energy performance using examples comprised of SeriousWindow models within the Passive House Planning Program, PHPP.

The two Passive House certified experts and trainers will demonstrate how to calculate PHPP values for window inputs (Uframe, Uglass and Psi-spacer) using a Serious NFRC THERM file, and will show how PHPP energy predictions would change for various windows in various walls, for example, a middle-of-the-wall install vs. inside-of-wall, and a Larsen Truss wall vs. masonry wall, etc.
Their work is central to advancing not only Passive House design, but the overall state-of-the-art in low-energy building design. John Semmelhack was interviewed for this USA Today article on the Passive House movement which also highlights a SeriousWindows project. Check the Passive House Institute US website soon for a link to download Semmelhack and Irwin's full presentation.