Embed Size (px)
Citation preview
Home Energy Audits Home Comfort Assessment?
John Fassler
Home Energy Auditor BPI Building Analyst
Your Trainer
• John Fassler – Home Energy Auditor with EnergyLogic – Have performed over 2,000 home energy audits in
Fort Collins, Cheyenne and Northern Colorado. – Over 20 years of experience in the homebuilding
industry. 10 years as a general contractor. – BPI Building Analyst – LEED AP? – RESNET certified
Home Certifications
• HERS Index • Energy Star • LEED for Homes • Home Energy Score, DOE • Passive House • Pretty Good House
Why Do People Get Audits
• House is uncomfortable. • Received a report from Fort Collins Utilities
that said they use more energy than most people in their neighborhood.
• Windows are leaky? • The audit is required to receive a rebate. • High energy bills. • It’s a great deal. ($60 in Fort Collins)
Common Report Recommendations • Crawl spaces • HVAC ducts and equipment in the attic or crawl space • Attics • Knee walls • Rooms over the garage • Cantilevered floors • Leaky homes, ACH50 over 4.0? • Basements • Fireplaces • Windows… “We do audits to inform homeowners that
the windows are not the problem.” Not always true, but usually.
Crawl Spaces The anti-logic zone.
Often a source of indoor air pollution. (Dust, mold, radon)
Insulate the walls and cut holes. Ventilation?
Crawl space with insulated floor. 92% efficient furnace and
ducts in crawl.
Knee Walls
Infrared
• Love it/Hate it… Great when it’s hot or cold outside. Can be misleading, use with caution.
Rooms Over the Garage
Cantilevered Floors
Attics
Ducts and Air Handler in Attic
When you see a home with ducts in the attic, you need to understand, that’s a design failure and it’s a quality failure and a performance failure. And if we just would educate people with that understanding, that that’s just a defect that the builder is forcing upon you the homeowner to have to live with. Then, if people understood it that way then that would shake a lot of people up, wouldn’t it? --Sam Rashkin
Fireplaces
Lessons Learned
• It’s OK to say “I don’t know.” • It can be difficult to identify and address health
and safety issues. • Physics is more reliable than intuition. • Indoor air quality is rarely addressed effectively. • Misinformation and myths about energy are
abundant. • Computer modeling doesn’t work for existing
homes. • Wear a long sleeve shirt and dust mask.
Simple to Complex
Resources • Green Building Advisor
www.greenbuildingadvisor.com • Home Energy Magazine
www.HomeEnergy.org • Residential Energy by John Krigger and Chris Dorsi
http://www.srmi.biz/bookstore/books/bkre-residential-energy
• Building Science Corporation www.buidingscience.com
• IAQ Radio www.iaqradio.com • Window and door parts and weather stripping.
http://www.allaboutdoors.com/
Bicycle Audit
