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

A blower door test pressurizes or depressurizes a building to measure total air leakage through the envelope, expressed in CFM50 or ACH50.

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

A minimum temperature differential of approximately 10°F between interior and exterior is needed for infrared thermography to reliably detect insulation voids and thermal bridging.

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

Energy Star typically requires ACH50 values between 3 and 7 depending on climate zone, so a reading of 12 is significantly above acceptable thresholds.

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

Wood studs conduct heat more readily than the insulation between them, creating thermal bridges that reduce the overall effective R-value of the wall assembly.

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

A pin-type moisture meter inserted into wall materials provides direct quantitative readings of moisture content within building materials to assess hidden damage.

Certified Energy Auditor Certification Practice Test

Certified Energy Auditor Certification Practice Test

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