Skip to main content

- What is Passive Building?
  Your passive building questions, answered
  
  Passive Building
  
  Passive Building Principles
  
  Passive Building FAQs
  
  A Better Way to Zero
  
  Passive Building Foundations Training
- Sectors
  Passive isn't just for houses
  
  Single-Family
  
  Multifamily
  
  Office Buildings
  
  Schools
  
  Other Non-Residential
- Projects
  Phius Certified Projects are the most energy efficient and comfortable buildings in the world
  Find a Project
  
  Project Certification
  
  Submit a Project
  
  Certification Review Queue
- Products
  Phius Certified Products are guaranteed to perform to passive standards
  View Products
  
  Product Certification Overview
  
  Window Certification
  
  Panel Certification
- Professionals
  Phius Certified Professionals are on the cutting edge of high-performance building
  Find a Professional
  
  Phius Certified Consultant (CPHC®)
  
  Phius Certified Builder (CPHB)
  
  Phius Certified Rater
  
  Phius Certified Verifier
  
  Phius Associate
  
  Maintain Credentials
Our Approach
- New Construction
  Phius CORE and Phius ZERO provide the path for constructing a Phius building from the ground up.
- Retrofit
  Upgrade existing buildings to Phius standards using Phius CORE REVIVE and Phius ZERO REVIVE.
- Commercial
  Phius standards aren't just for residential buildings. Phius CORE COMM and Phius ZERO COMM can be applied to any non-residential building.
Categories
May 2 – 8

WUFI Passive - Single Family | May 2024
Advance your energy modeling skills at our upcoming WUFI workshop
Upcoming Sessions
- Builders 101
  May 1
- WUFI Passive - Single Family | May 2024
  May 2 – 8
- Phius Certified Builder Exam | April 2024
  May 3 – June 2
- Humid Climate Conference Day 1
  May 6
- Policy Work
  Promoting policies designed to grow passive building
  Policy Database
  
  Incentives
  
  Codes
  
  Qualified Allocation Plans
  
  Cost Data
- Tools and Support
  Providing the tools you need to create healthier buildings
  Resource Library
  
  Certification Support
  
  Calculators and Protocols
  
  Feasibility Study
  
  WUFI Passive Design Tool
  
  Climate Data
  
  Quality Assurance
  
  Tech Corner

Project 1676

Prairie Trails Early Learning Center

Mt Prospect, Illinois

Building Function

School / Education
Project Type

Retrofit
ASHRAE Climate Zone

5A - Cool - Humid
Status

Final Certified
INT. Conditioned Floor Area

27930 sq. ft.

Core Project Team

Phius Certified Verifier

Graham Giovagnoli
Phius CPHC (Lead)

Tom Boeman
Project Submitter

Tom Boeman

Project Information

- Building Function
  
  School / Education
- Project Type
  
  Retrofit
- Construction Type
  
  Masonry
- Number of Units
  
  1
- Number of Stories
  
  1
- Program Version
  
  PHIUS+ 2018 Source Zero
- All Electric
  
  Yes
- INT. Conditioned Floor Area
  
  27930 sq. ft.
- Status
  
  Final Certified
- Design Certification
  
  November 27, 2019
- Final Certification
  
  February 4, 2022
- ASHRAE Climate Zone
  
  5A - Cool - Humid
- Region
  
  Midwest

Performance

- Annual Heating Demand
  
  8.09
- Annual Cooling Demand
  
  1.56
- Peak Heating Load
  
  6.06
- Peak Cooling Load
  
  2.31
- Site Energy Use Index (EUI)
  
  24.03
- Site Energy Use Index (w/Renewables)
  
  -7.88
- Compliance Software
  
  WUFI Passive
- Source Energy (Non-Residential)
  
  67.28
- Air Tightness (per enclosure area)
  
  0.061

Enclosure

- Wall 1 Type
  
  Framing with Continuous Insulation
- Wall 1 R-Value
  
  27
- Wall 1 Insulation Type
  
  PolyIso
- Wall 2 Type
  
  Exterior Continuous Insulation Only
- Wall 2 R-Value
  
  25
- Wall 2 Insulation Type
  
  PolyIso
- Roof 1 Type
  
  Vented Above Deck
- Roof 1 R-Value
  
  80
- Roof 1 Insulation Type
  
  PolyIso
- Floor Type 1
  
  Slab on Grade
- Floor 1 R-Value
  
  1
- Phius Certified Window
  
  Kawneer 1600 UT CW Alu PP
- Window Manufacturer 1
  
  Kawneer
- Window Product Name 1
  
  1600UT Windows Fixed
- Whole Window U-Value 1
  
  0.21
- Window Frame Material 1
  
  Aluminum
- Window Glazing SHGC 1
  
  0.33
- Window Manufacturer 2
  
  Kawneer
- Window Product Name 2
  
  1600UT Windows Operable
- Whole Window U-Value 2
  
  0.28
- Window Frame Material 2
  
  Aluminum
- Window Glazing SHGC 2
  
  0.33
- Door Manufacturer
  
  Kawneer
- Door Product Name
  
  500T Door
- Whole Door U-Value
  
  0.54
- Door Frame Material
  
  Aluminum

Systems & Equipment

- Measured Ventilation Fan Efficiency
  
  1