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Project 2008

Mount Vernon Library Commons

HKP Architects

Mount Vernon, Washington

Building Function

Government / Public
Project Type

New Construction
ASHRAE Climate Zone

4C - Mixed - Marine
Status

Certified
INT. Conditioned Floor Area

27708 ft²

Core Project Team

Phius Certified Verifier

Tom Balderston
Phius CPHC (Secondary)

Mohammad H. Abbasi
Phius CPHC (Lead)

Julie Blazek
Project Submitter

Julie Kriegh

Project Information

- Architecture Planning
  
  HKP Architects
- Building Owner
  
  City of Mount Vernon
- Mechanical Systems Designer
  
  FSi Engineers
- Construction Company
  
  Lydig Construction
- Building Function
  
  Government / Public
- Project Type
  
  New Construction
- Number of Units
  
  1
- Number of Stories
  
  1
- Program Version
  
  PHIUS+ 2018
- All Electric
  
  Yes
- INT. Conditioned Floor Area
  
  27708 ft²
- Status
  
  Certified
- Design Certification
  
  June 24, 2024
- Final Certification
  
  July 15, 2025
- ASHRAE Climate Zone
  
  4C - Mixed - Marine
- Region
  
  Northwest

Performance

- Annual Heating Demand
  
  2.53 kBTU/ft².yr
- Annual Cooling Demand
  
  4.42 kBTU/ft².yr
- Peak Heating Load
  
  6.52 kBTU/ft².yr
- Peak Cooling Load
  
  1.71 kBTU/ft².yr
- Site Energy Use Index (EUI)
  
  31.2 kBTU/ft².yr
- Site Energy Use Index (w/Renewables)
  
  14.89 kBTU/ft².yr
- Compliance Software
  
  WUFI Passive
- Source Energy (Non-Residential)
  
  87.36 kBTU/ft².yr
- Source Energy (Non-Residential w/Renewables)
  
  41.68 kBTU/ft².yr
- Air Tightness (per enclosure area)
  
  0.055 CFM50/ft²

Enclosure

- Wall 1 R-Value
  
  29
- Roof 1 R-Value
  
  50
- Floor 1 R-Value
  
  22
- Window Manufacturer 1
  
  Pella
- Whole Window U-Value 1
  
  0.2
- Window Glazing SHGC 1
  
  0.57

Systems & Equipment

- Ventilation System Manufacturer
  
  System Air
- Ventilation System Layout
  
  Semi-Centralized
- Ventilation System Type
  
  ERV
- Sensible Recovery Efficiency
  
  84%
- Measured Ventilation Fan Efficiency
  
  0.96 W/cfm
- Heating System Manufacturer
  
  Samsung
- Heating System Type
  
  Water Source Heat Pump
- Cooling System Manufacturer
  
  Samsung
- Hot Water System Manufacturer
  
  AO Smith
- Hot Water System Layout
  
  Centralized
- Hot Water System Type
  
  Heat Pump Water Heater
- Renewable Energy Type(s)
  
  On-Site PV
- Renewable Energy Annual Production
  
  132473 kWh/yr
- Renewable Energy System Size
  
  129.5kW