Building Performance Institute (BPI) Building Analyst

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Building Performance Institute (BPI)
Building Analyst Training
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Course Description
This course is intended for individuals who want to
become BPI Building Analysts and Energy Auditors.
Students will learn the “house-as-a-system” concept,
fundamentals of building science, systems within a
home, common building envelope problems and
solutions, and how to conduct an energy audit.
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Training Modules
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
Introduction
Principles of Energy
Basics of Heat
Basics of Moisture
Basics of Airflow
Building Structural Elements
Insulation
Building Mechanical Systems
Blower Door and Pressure Diagnostics
Combustion Testing
Common Problems, Solutions and Considerations
The Energy Audit Process
Health and Safety
The Business of Energy Auditing
Building Analyst
Training
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Everblue Classes
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Nationwide
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Continuing Education Credits
Everblue is a Portfolio Provider with the USGBC
Everblue is a Registered Provider with the American
Institute of Architects Continuing Education System
Credit earned upon completion of this program will be
reported to CES records for all AIA members
Certificates of Completion for non-AIA members are
available upon request
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Second Law of Thermodynamics
Highest
Level
Lowest Level
FLOW
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Annual Heating Degree Days
▫ Sum of all HDD for 1-year for a city/region
Day
Average
Temp
HDD
Monday
38°
27
Tuesday
45°
20
Wednesday
51°
14
Thursday
56°
9
Friday
60°
5
Saturday
65°
0
Sunday
69°
0
TOTAL
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Heat Transfer: Radiation
▫ The transfer of heat energy through empty space.
▫ No medium is necessary for radiation to occur, for it is
transferred through electromagnetic waves.
▫ The energy from the Sun travels through the vacuum of
space before warming the earth.
▫ Examples:
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Air Leakage Control
• Building thermal
envelope
– Durably sealed
• Caulked
• Gasketed
• Weatherstripped
• Air barrier
material
• Suitable film or
solid material
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Relative Humidity
▫ Warm air holds more water
86°F
68°F
50°F
▫ Cool air holds less water
▫ Dew Point = Saturation
Water
Vapor
Water
Vapor
Water
Vapor
100% RH
52% RH
28% RH
86°F
68°F
50°F
Water
Vapor
Water
Vapor
Water
Vapor
28% RH
52% RH
100% RH
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Dew
Point
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Convective Loops
 Air becomes less dense and rises
when heated
 Air rises on the warm surface and
falls along the cool surface
 Transfers heat through the
building assembly
 Fiberglass walls can have a
convective loop going thru them
 Can occur in wall assemblieswhere else?
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Bad House - Depressurized
Conditioned air is pumped
into the attic and wasted
Return
Air
Handler
Supply
0 CFM
100 CFM
House is depressurized because return air is drawing 100
CFM that is not being replaced by the supply. That air will
be replaced by air pulled in from the crawl space and
other gaps/cracks in the building envelope.
NOTE: This can be a combustion safety hazard.
100 CFM
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Building Shell
vs.
Thermal Envelope/Boundary
Building Shell
Thermal Envelope/Boundary
 The exterior surface of a building's
construction--the walls, windows,
roof, and floor.
 The sum total of the parts of a
building separating conditioned
space from unconditioned space.
Thermal Boundary = Where your insulation is located =
Where your pressure/air barrier should be located as well
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Causes of Pressure Differences
Wind Effect
Stack Effect
Mechanical Effect
+
+
–
+
–
–
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–
+
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Barrier Types
Type of Barrier
Common Materials
Purpose
Pressure/Air Barrier
Drywall, framing, caulk
Block convection (airflow)
Thermal Envelope/Barrier
Fiberglass/Cellulose
Block conduction
Radiant Barrier (if used)
Reflective Aluminum Foil
Block radiant heat
Water Resistant Barrier
House Wrap
Stop bulk moisture
Vapor Diffusion Retarder
Kraft Facing on insulation Stop vapor diffusion
*Fiberglass/Light Density Cellulose insulation does not block air flow
Small holes are problems for air and
thermal barriers just like small holes are
problems for boats…
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Access Hatches
and Doors
(Prescriptive)
▫ Weatherstrip and insulate doors from conditioned spaces
to unconditioned spaces (e.g., attics and crawl spaces)
▫ Insulate to level equivalent to surrounding surfaces
▫ e.g., required ceiling insulation = R-38, then attic hatch must be insulated to R-38
▫ Provide access to all equipment that prevents damaging
▫
or compressing the insulation
Install a wood framed or equivalent baffle or retainer when loose fill
insulation is installed
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Pressure Diagnostics Equipment
Manometer: The DG-700 Pressure
and Flow Gauge is a multi-functional
measures air pressure and airflow
using 2 independent pressure
sensors.
Blower Door: Diagnostic tool used to
depressurize a building to measure
the amount of airflow at a constant
pressure and identify leaks in a
home.
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Manometer
DG-700
The reading on the left tells
you the pressure inside the
house with reference to (WRT)
the pressure outside the
house. You need this to know
that you have depressurized
the house to 50 Pa
Manometer
The reading on the right tells
you the pressure inside the fan
with reference to (WRT) the
pressure inside the house. You
need to know this so you can
tell how much air is moving
through the fan when the house
is depressurized by 50 Pa.
House Pressure
Fan Pressure (red hose is
hooked up to fan)
Outside Pressure
(green hose runs to
outside the home)
House Pressure
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The Family of I-Codes
▫International Building Code
▫International Mechanical Code
▫International Fuel Gas Code
▫International Property Maintenance Code
▫International Fire Code
▫International Zoning Code
▫International Plumbing Code
▫Code Requirements for Housing Accessibility
▫International Private Sewage Disposal Code
▫ICC Electrical Code
▫International Residential Code
▫International Energy Conservation Code
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Structure of the IECC
▫ Chapter 1
▫ Chapter 2
▫ Chapter 3
▫ Chapter 4
▫ Chapter 5
▫ Chapter 6
Administrative
Residential
Definitions
Chapter
Climate Zones
Residential Energy Efficiency
Commercial Energy Efficiency
Referenced Standards
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Thank You
• We are always available to answer questions
• We appreciate referrals
• Class locations for LEED, BPI, Solar, Energy Code and other Everblue training:
AZ - Phoenix
CA - Irvine
CA - Los Angeles
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CA - Sacramento
CA - San Diego
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LA - New Orleans
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MD - Baltimore
MI - Detroit
MN - Minneapolis
MO - Kansas City
MO - St Louis
NC - Charlotte
NC - Raleigh
NJ - Cherry Hill
NJ - Edison
NJ - Jersey City
Website:
Contact:
Offices:
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800-460-2575
16375A Cranlyn Rd #121
Huntersville, NC 28078
NM - Albuquerque
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[email protected]
668 N Pacific Coast HWY #421
Laguna Beach, CA 92651
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Post Course
▫ Login credentials:
www.everblue.edu
Sent on initial registration
Customer Service questions call 800-460-2575 or email [email protected]
▫ Certificates
E-mailed to you within 72 hours of completing class
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