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December 1 – January 16

Phius Certified Trades Professional - Enclosure Specialist Training | December 2025 & January 2026 | Portland, OR
Become a Phius Enclosure Specialist!
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  January 13
- Phius Certified Builder Training and Certification Exam | January 2026
  January 20 – 30
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  January 20 – 30
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  January 20
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Project 2680

Brack Home Build

Virescent Architecture + Design

Rock Hill, Missouri

Building Function

Single-Family
Project Type

New Construction
ASHRAE Climate Zone

4A - Mixed - Humid
Status

Design Certified
INT. Conditioned Floor Area

3466 ft²

Core Project Team

Phius CPHC (Secondary)

Stefan Goebel
Phius Certified Rater

Bryton Stoll
Phius CPHC (Lead)

Ryan Abendroth
Project Submitter

Stefan Goebel

Project Information

- Architecture Planning
  
  Virescent Architecture + Design
- Building Owner
  
  Alison and Nathaniel Brack
- Construction Company
  
  FM Design Build
- Building Function
  
  Single-Family
- Project Type
  
  New Construction
- Number of Units
  
  1
- Number of Stories
  
  4
- Program Version
  
  Phius CORE 2024
- INT. Conditioned Floor Area
  
  3466 ft²
- Status
  
  Design Certified
- Design Certification
  
  January 13, 2025
- ASHRAE Climate Zone
  
  4A - Mixed - Humid
- Region
  
  Midwest

Performance

- Annual Heating Demand
  
  5.86 kBTU/ft².yr
- Annual Cooling Demand
  
  3.58 kBTU/ft².yr
- Peak Heating Load
  
  4.63 kBTU/ft².yr
- Peak Cooling Load
  
  1.78 kBTU/ft².yr
- Site Energy Use Index (EUI)
  
  11.47 kBTU/ft².yr
- Site Energy Use Index (w/Renewables)
  
  -3.28 kBTU/ft².yr
- Compliance Software
  
  WUFI Passive
- Source Energy (Residential)
  
  3884 kWh/person.yr
- Air Tightness (per enclosure area)
  
  0.06 CFM50/ft²

Enclosure

- Window Manufacturer 1
  
  Wythe

Systems & Equipment

- Ventilation System Manufacturer
  
  Brink
- Measured Ventilation Fan Efficiency
  
  0.34 W/cfm
- Heating System Manufacturer
  
  Mitsubishi
- Cooling System Manufacturer
  
  Mitsubishi
- Hot Water System Manufacturer
  
  Ruud