1 Success with the La Energy Code 28 - lsu.edu€¦ · [email protected] 318.355.1918. LOGISTICS...
Transcript of 1 Success with the La Energy Code 28 - lsu.edu€¦ · [email protected] 318.355.1918. LOGISTICS...
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Brian F. Snyder, Ph.D.Louisiana State
University
Assistant ProfessorDepartment of
Environmental Science
Robert (Bobby) ParksHealthy Homes of
Louisiana, LLC
Building Science Practitioner
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LOGISTICS
• Emergency exits• Restrooms• Cell phones• Breaks
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PARTICIPANT HANDOUTS
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THE TECHNICAL GUIDE
• Information Sheets• Checklists• Tech Tips• Critical Details
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AGENDA
• Introduction•Code background•Code changes• Implementing code and
hopefully add some “why” to the “how”
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Disclaimer
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PRESCRIPTIVE PATH
• Simple + Straight forward• No trade‐offs• Additional paths available
Performance PathOverall Uo Average
RatingHERs ‐ BPI
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RESIDENTIAL BUILDINGS
• 2009 IRC Chapter 11• Mandatory statewide• Effective: January 1, 2015
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Products vs. Process
Major changes to construction standards can be separated into two categories:
▪ PRODUCT CHANGES▪ PROCESS CHANGES
Which has resulted in the need for ▪ PERFORMANCE TESTING
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PerformanceTesting
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What are the goals of codes?
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OCCUPANT HEALTH + SAFETY
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CODE CHANGES
NEW PRODUCTS
GOVERNMENT
NEW PROCESSES
INFORMED BUYERS
VOLUNTARY PROGRAMS
RESOURCE AVAILABILITY
PUBLIC AWARENESS
PERFORMANCE TESTING
HEALTH + SAFETY
CODE INFLUENCES
Minimum Codes
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Above codeVOLUNTARY PROGRAMS
• ENERGY STAR for New Homes• LEED For New Homes• NAHB Green
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the average size of new single-family homes has increased 13% to 2,693 square feet, while the median size has increased 17% to 2,472 square feet.Eyeonhousing.org Dec 30, 2015
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SHELTON GROUP
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Default risks are 32% lower in energy‐efficient homes
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BUILDING INFLUENCES
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AN INTERACTIVE SYSTEM
Heat FlowAir Flow
Moisture Flow
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House as a System: Outcome
• Lower operating costs• Comfort for occupants• Durable structures• Fresh air to breathe• Less impact on the environment
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BUILDING SYSTEMS
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CODE CHANGES
FRAMING
HVAC
ELECTRICAL
PLUMBING
AIR SEALING
INSULATIONPRODUCT
PROCESS
PERFORMANCE
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Common LanguageBuilding Science Terms
• Air barrier• Air sealant• Radiant surfaces• Insulation Grading• Mechanical Ventilation: Point Source vs Whole house
• CFM• ACCA: Manual J, Manual D, Manual S & Manual T
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1 – 10 – 100 RULE
x1 Prevention: Worker
x10 Rework:Inspector
x100 Claim:Homeowner
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ENERGY EFFICIENCY BENEFITS
• Customers: Realistic payback period• Lenders: Lower default risk• Appraisal Industry: Great value in energy efficiency• Customers: Lot’s of non‐energy benefits
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RESOURCES
• http://publicecodes.cyberregs.com/icod/index.htm• https://basc.pnnl.gov/• http://www.ba‐pirc.org• www.buildingscience.com
What resources would you
recommend?
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Questions?