This is a presentation used by Green Home Logic employees to explain to homeowners the process set by the Building Performance Institute regarding the home energy audit.

1. Green Home Logic
Home Energy Audit
Geoffrey Katz
Vice President
Energy Auditor
March 24, 2008

2.  Green Home Logic
› Renovating homes since 1970.
› Home Performance contracting since 2009
› Empower program contractor of the year 2011 and 2012
› Fully licensed and insured home improvement contractor
 Certifications from the Building Performance Institute
http://www.bpihomeowner.org/
› BPI Building Analyst
› BPI Building Envelope Professional
› BPI Heating Professional
 Home Performance Industry
› COMFORT- You deserve a comfortable home free of drafts, difficult temperatures and
moisture issues. Home performance upgrades are the answer.
› HEALTH - The health of you and your family should never be compromised. Home
performance contractors help improve the health and safety of today's homes.
› EFFICIENCY - An energy-efficient home helps you stop wasting energy and money each
month. Home performance contractors make it possible.
Background

3. Energy
Audit
Retrofit
Save
• Insulation
• HVAC
• Lighting
• What we can do
to help
• Increase comfort
levels
• Decrease cost
Home Performance Contracting
Process

4. Energy Audit
 What can I expect during an energy audit?
 A review of your energy consumption history, such as natural
gas, oil, and electricity usage
 An interior and exterior onsite evaluation using a blower door,
thermal imaging camera, and other gauges
 Recommendations for lifestyle changes that can be made to
lower your energy usage and bills
 An assessment of your heating and cooling equipment and
appliances
 Information on your eligibility for state or national incentives and
rebates
 A home energy audit report including a list of prioritized energy
improvements with projected costs and return on investment
(ROI)

5. Health & Safety
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6.  A blower
door is a
machine used to
measure the
airtightness of
buildings. It can
also be used to
help physically
locate air
leakage sites in
the building
envelope.
Blower Door Testing

7. Reducing Air Leakage
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TEST IN
CFM
AIR SEALING
HOUSE
TEST OUT
CFM
Air sealing is typically the most cost effective improvement you can make to your
home. To properly seal out air leaks, a large fan called a blower door is used to
depressurize your house. This makes air leaks easy to find, so corrective measures
can be taken. A good air sealing job will dramatically increase the comfort of your
home and help you save significant energy.
966 CFM REDUCTION reduced air changes per hour by 30%

8.  You’re sitting at home on your couch and you feel a draft of cold air.
The first thing that might come to mind as the problem is your
windows, but what if the issue is bigger than that?
 Your house is a system of parts that interact with each other.
Therefore, your issue could be partially related to your windows, but
more likely your home may be under-insulated or warm air is escaping
through cracks and gaps that you cannot see. This is where a home
energy audit comes into play.
› Priority #1: Attic air sealing
 Top plates, wire penetrations, plumbing penetrations, recessed lights, attic access
points.
› Priority #2: Basement and/or crawlspace air sealing
 Plumbing and electrical bypasses in the basement or crawlspace ceiling, rim joist,
and sill plate areas.
› Priority #3: Penetrations inside the living space on the outside facing
walls
 Plumbing and electrical bypasses underneath sinks and other areas
 Caulking windows and doors
 Weather-stripping and door sweep replacements.
Air Leakage Priority
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9. Priority #1: Attic air sealing
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Example of a top plate
Top plates, wire penetrations, plumbing penetrations,
recessed lights, attic access points.

10.  Plumbing and electrical bypasses in the basement
or crawlspace ceiling, rim joist, and sill plate areas.
Priority #2: Basement and/or crawlspace air sealing
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11.  Weather-stripping
and door sweep
replacements.
Priority #3: Penetrations inside the living space on the outside facing
walls
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 Caulking
windows and
doors
 Plumbing and
electrical
bypasses

12.  Knee wall before:
› No Insulation
 Knee wall after:
› 3.5 inch fiberglass batting
with a Tyvek air barrier, taped
and sealed. (R-13)
ATTIC INSULATION
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13. ATTIC INSULATION
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Closed floor 6” dense pack (airtight)
cellulose insulation (R-20)
2” polyiso foam board insulation
(R-12) with weather-stripping
and a door sweep

14. Wind Wash Baffles
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15. ATTIC INSULATION
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16.  Before  After
Bathroom Fan Venting
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