Steps of Building Analysis - Correct Answers -GENERAL:
- Comply w/BPI Code of Ethics (1.1)
- All Assumptions Documented (1.2)
PRE_SITE VISIT:
- Compile Energy & Water Data (1.7)
- Determine most important decision-makers (1.6)
SITE VISIT:
- Collect data for energy efficiency opportunities (1.13)
- Request Blueprints (1.8)
REPORT:
- Utility/Water consumption analysis (1.14)
- Cost/Benefit Analysis
Give 3 examples of convection - Correct Answers -a.) Hot combustion gases convecting
against the inside metal surface of a pipe
b.) Cold skin (coming from a cold classroom) against hot and humid air (outside of the
building)
c.) Magma against the inside of the volcano
Name 4 factors that determine comfort - Correct Answers -a.) Air temperature
b.) Radiant temperature
c.) Relative humidity
d.) Air movement
When does a thermal bypass happen? - Correct Answers -A thermal bypass happens
when heat is carried by airflow across the thermal boundary and around insulation. This
usually happens when the air barrier and the insulation is not close together and thus,
convecting air is able to carry heat from one surface to another across air spaces easily.
Factors to consider when calculating a building's heating and cooling loads. - Correct
Answers -a.) Air leakage and ventilation
b.) Internal heat gains
c.) Local climate
,Name 3 chief causes of backdrafting and spillage in central heating systems. - Correct
Answers -a.) Blocked chimneys
b.) Cracked heat exchangers
c.) Improperly designed or installed venting
Reasons why moisture condensation is an important issue that needs to be addressed.
- Correct Answers -a.) Water leads to building deterioration by biological pests. These
pests also create a threat to human respiratory health.
b.) Water corrodes metal, dissolves glue, warps wood, and weakens mortar.
c.) Water reduces the thermal resistance of insulation and may permanently damage it.
Before doing a site visit, according to BPI standards, an analyst should collect utility
data. How much (or how long) of utility data should the analyst collect? - Correct
Answers -1 year to 15 months
During a site visit, according to BPI standards, an analyst should inspect for hidden
moisture issues. What areas does BPI give priority to? - Correct Answers -Around
windows, a/c units, bathrooms and sinks
An example of the Whole Building Approach would be: - Correct Answers -Painting the
roof silver to lower the cooling load of the building
Conduction is a major concern in these parts of a building EXCEPT: - Correct Answers -
Interior walls
Air moves from: - Correct Answers -High pressure to low pressure
Snow melting on a roof probably indicates what potential issue with a building - Correct
Answers -Conduction because of a poorly insulate roof
Which of the following affects air, heat & moisture movement? - Correct Answers --
Temperature/Pressure difference,
- Material,
- Distance.
Delta T (∆T) describes a difference in ____________ - Correct Answers -Temperature
Open pipe penetrations through the ceiling of a parking garage are a break in the
building's: - Correct Answers -- Moisture barrier
- Thermal barrier
- Pressure barrier
Open windows in a apartment building create a break in the building's: - Correct
Answers -Thermal barrier
, A water pump in a boiler room should be evaluated for potential: - Correct Answers --
Electrical inefficiencies
- Signs of bulk moisture
- Vibration and noise
A seam or opening between building components is a concern because heat loss may
be taking place by: - Correct Answers -Convenction
A super can insulate a roof with either rigid board fiberglass with an R value of 4 per
inch for $2.50 per square foot or a polyurethane spray with an R value of 7 per inch for
$2.00 per square foot. Which product will insulate better: - Correct Answers -The
polyurethane spray
A building needs to replace the windows. The super proposes replacing the original
aluminum windows with vinyl windows because: - Correct Answers -Vinyl windows have
a lower U-value
An electrician installs high hat LED lights on the top floor of a small multifamily building
with a pitched roof. The super is concerned about the new fixtures because: - Correct
Answers -The penetration in the ceiling may create a break in the thermal and pressure
boundaries
Which of the following factors affect the amount of heat loss through conduction? -
Correct Answers -a.) U-value
b.) Surface Area
c.) Temperature Difference
A tenant on the top floor of a building complains that their apartment is always hot.
Which of the following would not help address the problem? - Correct Answers -
Improving drainage on the roof
Which of the following windows has the most heat flowing through it? - Correct Answers
-Single glazed window with a U-value of 0.90
An apartment is vacated and requires renovation. Which of the following is not a
strategy to air seal an apartment during a renovation? - Correct Answers -Using high
expanding foam on cracks around windows.
The most important reason to air seal an apartment is to: - Correct Answers -Prevent
smoke and fire from traveling through openings between floors.
Air sealing around a window is NOT an important strategy to reduce: - Correct Answers
-U-value
Which of the following factors affect the amount of heat loss through convection? -
Correct Answers -a.) Area
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