Help Make Passive Building Mainstream Support PHIUS
Certified Projects Database
No. 1529 Project Habitat 20K Passive House Status Certified
Lead CPHC David Bitter
Builder Auburn University 20K Initiative/ Real Life builders, LLC (GC of Record) Location Opelika, AL
QA/QC Rater Bruce Kitchell Architecture Planning Auburn University 20K Initiative & Solera Studios Mechanical Systems Designer Auburn University 20K Initiative, Solera Studios & Mitsubishi
Constr. Type Timber Bldg. Function Single Family Floor Area 819
Project Type New Construction HERS Index 38 LEED Rating
Energy Star Rating 3.0 Heating Degree Days 1809 Cooling Degree Days 2598
Units 1 Certification Type PHIUS+2018 Certification Date August 27, 2019
Exterior Wall R-31 Hardie board siding over 2" extruded polystyrene (XPS) continuous insulation (by Styrofoam) and 6" wood studs filled with open cell spray urethane foam (Green Guard Gold Quik-Shield 108)
Floor R-20 4" concrete slab over 4" rigid insulation
Roof R-61 Attic ceiling of 12" blown cellulose insulation above 2-1/2" of closed cell spray polyurethane foam (Green Guard Gold Quik-Shield 112 XC)
Window Frame Alpen's Tyrol Series reinforced uPVC (Frame U Value 0.15)
Window Glazing Alpen's Tyrol Series High Gain-6 Pro PH+ True Triple (Ug 0.107, SHGC 0.57)
Entrance Door Provia "Heritage" fiberglss door (U-factor 0.14)
Ventilation RenewAire EV90P ERV
Heating System Mitsubishi M-Series Mini-Split 9,000 BTU/H (Model MSZ-GL09NA-U1 & MUZ-GL09NA-U1)
Submitter David Bitter
Air-tightness 0.0096 cfm/sf @50Pa (tested)
Cooling System Mitsubishi M-Series Mini-Split 9,000 BTU/H (Model MSZ-GL09NA-U1 & MUZ-GL09NA-U1)
Additional Consultants Earth Steward Solar Consulting
Additional Notes

Subscribe to our Newsletters

YouTube Follow us on Twitter We're on Facebook PHIUS Blog

© 2021 Passive House Alliance. All Rights Reserved. HOME | PRIVACY | BLOG | CONTACT US