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    Recent posts: Certified Data for Windows program



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  1. PHIUS Certified Builder Training --May 13-16, Laurel, Maryland

  1. Proceedings from Pittsburgh Conference available


  1. 9th Annual North American Passive House Conference: Sept. 10-14, SF Bay Area!

  1. PHIUS Certified Data for Windows!

   See climate recommendations, window data

   Program description, blog

  1. NEW! WUFI Passive Intro, Boston, April 24-25