Project 1530

Passive House in the Little City

Kaplan Thompson Architects

Falls Church, Virginia

Building Function

Single-Family
Project Type

New Construction
ASHRAE Climate Zone

4A - Mixed - Humid
Status

Certified
INT. Conditioned Floor Area

3361 ft²

Core Project Team

Builder

Patty Shields
Phius Certified Rater

Chris Conway
Project Submitter

Adam Wallace

Project Information

- Architecture Planning
  
  Kaplan Thompson Architects
- Building Owner
  
  Marek Polonski & Andreea Chisca
- Mechanical Systems Designer
  
  Energy Vanguard
- Construction Company
  
  Metro Green, LLC
- Building Function
  
  Single-Family
- Project Type
  
  New Construction
- Construction Type
  
  Wood Frame
- Number of Units
  
  1
- Number of Stories
  
  3
- Program Version
  
  PHIUS+ 2015
- ADD'L Certification Badges
  
  PHIUS+ Source Zero
- All Electric
  
  Yes
- INT. Conditioned Floor Area
  
  3361 ft²
- Status
  
  Certified
- Design Certification
  
  April 22, 2019
- Final Certification
  
  October 19, 2023
- ASHRAE Climate Zone
  
  4A - Mixed - Humid
- Region
  
  Northeast

Performance

- Annual Heating Demand
  
  3.59 kBTU/ft².yr
- Annual Cooling Demand
  
  5.91 kBTU/ft².yr
- Peak Heating Load
  
  3.12 kBTU/ft².yr
- Peak Cooling Load
  
  3.02 kBTU/ft².yr
- Site Energy Use Index (EUI)
  
  11.64 kBTU/ft².yr
- Site Energy Use Index (w/Renewables)
  
  7.07 kBTU/ft².yr
- Compliance Software
  
  WUFI Passive
- Source Energy (Residential)
  
  7249 kWh/person.yr
- Source Energy (Residential w/Renewables)
  
  4484 kWh/person.yr
- Air Tightness (per enclosure area)
  
  0.035 CFM50/ft²

Enclosure

- Wall 1 Type
  
  Framing with Continuous Insulation
- Wall 1 R-Value
  
  53
- Wall 1 Insulation Type
  
  Cellulose, EPS, PolyIso
- Wall 2 Type
  
  Framing with Continuous Insulation
- Wall 2 R-Value
  
  36
- Wall 2 Insulation Type
  
  Cellulose, PolyIso
- Wall 3 Type
  
  Framing with Continuous Insulation
- Wall 3 R-Value
  
  29
- Wall 3 Insulation Type
  
  Cellulose, EPS
- Roof 1 Type
  
  Vented Below Deck
- Roof 1 R-Value
  
  85
- Roof 1 Insulation Type
  
  Other
- Roof 2 Type
  
  Vented Above Deck
- Roof 2 R-Value
  
  64
- Roof 2 Insulation Type
  
  EPS, PolyIso, Cellulose
- Roof 3 Type
  
  Vented Above Deck
- Roof 3 R-Value
  
  51
- Roof 3 Insulation Type
  
  Cellulose, Other
- Floor Type 1
  
  Basement Slab
- Floor 1 R-Value
  
  32
- Floor 1 Insulation Type
  
  EPS
- Floor Type 2
  
  Crawlspace Floor
- Floor 2 R-Value
  
  36
- Floor 2 Insulation Type
  
  EPS, Other
- Window Manufacturer 1
  
  KlearWall
- Window Product Name 1
  
  PVC Euro triple fixed
- Whole Window U-Value 1
  
  0.14
- Window Frame Material 1
  
  Unplasticized Polyvinyl Chloride (uPVC)
- Window Glazing SHGC 1
  
  0.61
- Window Manufacturer 2
  
  KlearWall
- Window Product Name 2
  
  PVC Euro triple tilt-turn
- Whole Window U-Value 2
  
  0.14
- Window Frame Material 2
  
  Unplasticized Polyvinyl Chloride (uPVC)
- Window Glazing SHGC 2
  
  0.61
- Window Manufacturer 3
  
  KlearWall
- Window Product Name 3
  
  PVC Euro triple casement/awning
- Whole Window U-Value 3
  
  0.13
- Window Frame Material 3
  
  Unplasticized Polyvinyl Chloride (uPVC)
- Window Glazing SHGC 3
  
  0.39
- Door Manufacturer
  
  KlearWall
- Door Product Name
  
  Future-Proof .39
- Whole Door U-Value
  
  0.17
- Door Frame Material
  
  uPVC (Unplasticized Polyvinyl Chloride)

Systems & Equipment

Core Project Team

Project Team

Project Details

Phius Certification Milestones

Climate & Location

Modeled

Measured

Wall types

Roof types

Floor types

Window & Door types