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No. 1122 Project Ivy City Passive Houses Block A Status Certified
Lead CPHC Barbara Gehrung
Builder Habitat for Humanity Washington D.C. Location Washington D.C., DC
QA/QC Rater Chris Conway Architecture Planning Zavos Architecture & Design Mechanical Systems Designer L.S. Grimm Inc. Consulting Engineers
Constr. Type Mixed timber-masonry Bldg. Function Multifamily Floor Area 3775
Project Type New Construction HERS Index LEED Rating
Energy Star Rating Heating Degree Days 4706 Cooling Degree Days 1549
Units 3 Certification Type PHIUS+ Certification Date January 6, 2016
Exterior Wall Gypsum Board 2x4, 16" o.c. w/Roxul comfort batt insulation, load bearing structure (balloon framing) denseglass structural sheathing 10" vertical tji w/dense-pack cellulose db solitex plus weather-resistant barrier membrane vented air space brick / fiber-cement cladding
Floor Marmoleum/engineered wood flooring OSB subfloor 3.5" roxul w/2xfurring 6" eps 6mil PE 4" concrete slab on grade
Roof Gypsum Board DB Intello Membrane 10"TJI's OSB structural decking (air-control layer) Polyiso Board Insulation TPO/EPDM membrane roof
Window Frame Klearwall uPVC
Window Glazing Klearwall Triple Glazing - final SHGC tbd, currently 0.32
Entrance Door Klearwall door
Ventilation Zehnder Comfoair 200
Heating System Ductless Mini-Split System per Specs w/ air-share transfer fans
Submitter Barbara Gehrung
Air-tightness 0.18 ACH50
Cooling System Ductless Mini-Split System per Specs w/ airshare transfer fans
Additional Consultants Michael Bonsby/Bonsby Heating and Air
Additional Notes This an affordable housing project and part of a urban redevelopment project by Habitat for Humanity in Washington D.C.

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