Testing Protocols & Certification Standards: RESNET & PHIUS+ 7 7 7 th th th th Annual North American Passive House Conference Annual North American Passive House Conference Annual North American Passive House Conference Annual North American Passive House Conference September 27 September 27 September 27 September 27- - -30, 2012 Denver CO 30, 2012 Denver CO 30, 2012 Denver CO 30, 2012 Denver CO RESNET & PHIUS+ Kristof Irwin, Principal Positive Energy Austin, Texas
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Testing Protocols &
Certification Standards:
RESNET & PHIUS+
7777thththth Annual North American Passive House ConferenceAnnual North American Passive House ConferenceAnnual North American Passive House ConferenceAnnual North American Passive House ConferenceSeptember 27September 27September 27September 27----30, 2012 Denver CO30, 2012 Denver CO30, 2012 Denver CO30, 2012 Denver CO
RESNET & PHIUS+
Kristof Irwin, Principal
Positive Energy
Austin, Texas
Positive Energy•Integrative Building Science
•Design/Construction Review
•HVAC Design
•IAQ Consulting & Testing
•Field Monitoring•Field Monitoring
•Electricity Use
•Psychrometrics
•Research Studies
•Education/Training
Session Learning Objectives:
• Learning Objectives
– See larger motion in industry
7777thththth Annual North American Passive House ConferenceAnnual North American Passive House ConferenceAnnual North American Passive House ConferenceAnnual North American Passive House ConferenceSeptember 27September 27September 27September 27----30, 2012 Denver CO30, 2012 Denver CO30, 2012 Denver CO30, 2012 Denver CO
– Comparison of Testing Procedures
– Comparison of Standards
– HERS Rating for PH project in CZ-2A
– Understanding of new PHIUS+ Standards
In this Talk
• RESNET Standards
• Energy Star Version 3 Requirements
• DoE Challenge Home Requirements
• PHIUS+ Requirements• PHIUS+ Requirements
Not In this Talk
• RESNET Standards
• Energy Star Version 3 Requirements
Challenge Home Requirements
Detailed Treatment of:
• Challenge Home Requirements
• PHIUS+ Requirements
Home Building Industry
About making money.
Industry driver over past few Industry driver over past few
decades is efficient process.
Industry driver now shifting
to efficient homes.
Industry Goal
High Performance Homes
• Healthy
• Safe• Safe
• Comfortable
• Durable
• Energy Efficient
High Performance Homes
How?
• Inspect – know what to look for and why
• Test – sympathetic • Test – sympathetic understanding of test equipment & process
• Certify (QA/QC)
• Verification & Certification(V&C)
Simple
• Inspect
• Test
Inspect & Verify• Vented/Unvented
• U-factor
• R-value
• Insulation Grade
• SHGC
• VT
• SEER
• EER
• HSPF
• AFUE
• COP• VT
• CFA
• Perimeter
• Orientation
• Shading
• Radiant Barrier
• CFM/Watt
• kWh/yr
• EF
• Perms
• Emissivity
Performance Testing
• ACH50
• ACHn
• CFM25-Total
• CFM20-Exterior
• TESP/ESP
• R2R Delta-P
• H2E Delta-P
• IAQ
• CAZ• TESP/ESP
• T&B
• Delta-Q
• Delta-T
• CAZ
• Worst Case
• Gas Leakage
• Exhaust CFM
• Ventilation CFM
Simplicity?
"Everything should be made as simple as
possible, but not simpler.“
- Albert Einstein
The Other Side of Simplicity
"I would not give a fig for the simplicity on this side of
complexity, but I would give my life for the simplicity on
the other side of complexity.“
- Oliver Wendell Holmes
(often attributed to Einstein)
How do these relate?
Performance Testing
Metrics for Buildings
Start: RESNET Standards (Ch 8 + Appendix A)
+ Energy Model/Reference Home = HERS Index
+ TERC, HVAC Rater/Contractor, IAQ, WM = ESV3
+ Ducts in conditioned, IECC2012 Envelope, + Ducts in conditioned, IECC2012 Envelope,
Water Htg Eff, ES L&A, IAQ, WM, RERH
= Challenge Home
+ PHIUS Checklist = PHIUS Certified Home
RESNET Standards
• Maintains Technical Standards and provides oversight for the Home Energy Ratings System (HERS)(HERS)
• Provides Accreditation Standards, Ethical Standards, and Protocols