Home Inspection Notes: Insulation and Interior Inspection Section#1 Insulation and Ventilation Quiz#12

This study session covers ventilation systems, including heat recovery ventilators..

The estimated completion time for this study session is ninety minutes.

Objectives
At the end of this study session, you should be able to:

Needs Grading

List 10 problems with exhaust fans, their implications, and an inspection strategy for each of them.

Selected Answer:	1. Inoperative 2. Noisy 3. Inadequate air movement
Correct Answer:	1. Inoperative / Won?t help reduce humidity / Operate the fan 2. Noisy / Inexpensive fan ? won?t perform its function / Listen for noise 3. Inadequate air movement / Fan and ductwork are likely to get dirty faster / Check at exhaust or intake point, use a tissue 4. Fan cover missing / Electric shock, fire hazard / Check that covers are in place 5. Wiring unsafe / Reduced airflow, moist air being dumped into unconditioned spaces / Check for wiring problems 6. Ducts leaky, damaged, disconnected, missing / Condensation inside and outside duct in winter/summer / Look for sags in ductwork 7. Ducts not insulated in unconditioned space / Warm, moist air dumped into building / Check for insulation 8. Termination point not found, poor location / Exhaust from fan drawn back into building / Try to find termination points 9. Weather hood missing, damaged, loose / Rain or snow entry into building / Watch for location of exhaust vents 10. Inadequate backflow prevention / Cold air back into building, exhaust can?t get outside / Check for weather hood present and tightly installed Operate flap with your finger
Response Feedback:	[None Given]

Needs Grading

List 25 common problems with heat recovery ventilators.

Selected Answer:	[None Given]
Correct Answer:	1. Inoperative 2. Noisy 3. Inadequate air movement 4. Cabinet cover missing or dirty 5. Wiring unsafe 6. Ducts leaky, damaged, etc. 7. Cold ducts not insulated 8. Inlet/outlet points not found 9. Inlet/outlet point locations poor 10. Missing flap or screen on inlet/outlet points 11. Weather hood missing, etc. 12. Duct not properly connected to furnace 13. Grille problems 14. No grease filter on kitchen grille 15. Flow collars missing 16. Dampers missing 17. Duct vapor barrier missing 18. HRV not interlocked with furnace fan 19. Fan switch not found, etc. 20. Filters dirty, missing 21. Core dirty, missing 22. Cabinet problems 23. Condensate drain problems 24. Condensate trap missing 25. Condensate trap discharge in poor location
Response Feedback:	[None Given]

Needs Grading

List eight ways to reduce moisture sources in houses.

Selected Answer:	[None Given]
Correct Answer:	1. Don?t store firewood in the home 2. Correct foundation leakage problems 3. Disconnect or remove humidifiers 4. Cover any earth floor in basement or crawlspace 5. Cover sump pits 6. Don?t hang laundry to dry inside the home 7. Vent clothes dryers to the outside 8. Use exhaust fans when showering or cooking 9. Limit the use of misters and steam generators
Response Feedback:	[None Given]

Needs Grading

List five signs of high humidity in houses.

Selected Answer:	[None Given]
Correct Answer:	1. Condensation on windows 2. Staining or streaking on window sills and areas below 3. Mold or mildew on cool, dark or moist house surfaces 4. Stale odors and stuffy air in the house 5. Backdrafting of combustion appliances
Response Feedback:	[None Given]

Needs Grading

List two ways that humidity levels in houses can be controlled.

Selected Answer:	[None Given]
Correct Answer:	1. Reduce moisture sources 2. Ventilate the home
Response Feedback:	[None Given]

Home Inspection Notes