Certified Energy Auditor Certification Certified Energy Auditor Building Envelope Assessment Questions and Answers 3

Question 1

When performing a visual inspection of a building envelope, which indicator most strongly suggests air leakage at a wall-to-ceiling junction?

Accepted Answer

Dark staining or dust marking patterns on ceiling surfaces near walls

Answer

Dust marking or ghosting patterns near wall-ceiling junctions indicate air movement carrying particulates, which is a reliable visual indicator of air leakage pathways.

Question 2

An energy auditor is evaluating window performance in a 1990s commercial building. Which measurement best characterizes the thermal performance of the existing window assemblies?

Accepted Answer

The U-factor of the entire window assembly including frame

Answer

The U-factor of the complete window assembly, including frame and spacers, provides the most comprehensive measure of thermal heat transfer performance for energy audit purposes.

Question 3

Which building envelope deficiency is most effectively identified using a smoke pencil during a depressurized blower door test?

Accepted Answer

Specific air leakage pathways at penetrations and joints

Answer

A smoke pencil reveals the exact location and direction of air movement at specific penetrations, gaps, and joints while the building is under negative pressure from a blower door.

Question 4

In a hot-humid climate zone, where should the vapor retarder be placed in a wall assembly to minimize moisture condensation risk?

Accepted Answer

On the exterior side of the insulation

Answer

In hot-humid climates, the primary moisture drive is from the warm, humid exterior inward, so the vapor retarder should be placed on the exterior side to prevent condensation within the wall cavity.

Question 5

An energy auditor measures a wall assembly and finds the installed cavity insulation has an R-value of R-13, but the overall wall has an effective R-value of R-9.8. What is the most likely primary cause of this performance gap?

Accepted Answer

Thermal bridging through wood framing at 16-inch on-center spacing

Answer

Standard 2x4 wood framing at 16-inch centers creates thermal bridges that typically reduce the effective R-value of an R-13 cavity wall to approximately R-9 to R-10.

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 3