Certified Energy Auditor Certification Certified Energy Auditor Building Envelope Assessment Questions and Answers 2

Question 1

What is the primary purpose of a blower door test during a building envelope assessment?

Accepted Answer

To quantify the air infiltration rate of the building envelope

Answer

To measure HVAC system efficiency

Answer

To determine indoor air quality levels

Answer

To test the capacity of exhaust fans

Question 2

Which thermal imaging condition is most likely to produce accurate results when scanning a building envelope for insulation defects?

Accepted Answer

When there is at least a 10°F temperature difference between indoors and outdoors

Answer

When indoor and outdoor temperatures are nearly equal

Answer

When the building has been exposed to direct sunlight for several hours

Answer

When the HVAC system has been running at maximum capacity for 30 minutes

Question 3

An energy auditor discovers that a building's actual air changes per hour at 50 Pascals (ACH50) is 12. For a residential building targeting Energy Star certification, this value is considered:

Accepted Answer

Significantly above most climate zone requirements

Answer

Well within acceptable limits

Answer

Moderately above the typical threshold

Answer

An indication of a perfectly sealed envelope

Question 4

Which building envelope component is most commonly responsible for thermal bridging in wood-frame construction?

Accepted Answer

Wall studs and framing members

Answer

Window glazing

Answer

Roof sheathing

Answer

Interior drywall

Question 5

During a building envelope assessment, an auditor finds moisture accumulation inside a wall cavity. Which diagnostic tool is most appropriate to determine the extent of hidden moisture damage?

Accepted Answer

Pin-type moisture meter

Answer

Infrared thermography camera

Answer

Combustion analyzer

Answer

Digital manometer

Question 6

What is the significance of the building envelope's effective R-value compared to the nominal R-value of installed insulation?

Accepted Answer

The effective R-value is typically lower due to thermal bridging, air leakage, and installation defects

Answer

They are always identical in properly constructed assemblies

Answer

The effective R-value is typically higher due to the thermal mass of framing

Answer

The effective R-value only applies to commercial buildings