Inspection Training

How to Inspect the Vent Covers at the Exterior

While the inspector is at the exterior of the home they should check to make sure that all of the vent covers are in good condition. If a vent cover is damaged or clogged it should be called out and put as Repair/Replace in your report. Please review the entire procedure below.



International Standards of Practice for Performing a General Home Inspection


3.2. Exterior


I. The inspector shall inspect:



II. The inspector shall describe:



III. The inspector shall report as in need of correction:



IV. The inspector is not required to:



Axium SOP Differences

Axium Requires: The inspector will check all accessible exterior vent covers to make sure they are secured to the wall and nothing is obstructing the vent.


Tools Needed

No tools required to inspect the vent covers.



  • The inspector should check all of the exterior vent covers that are accessible and make sure the flaps are not damaged or stuck open. Be careful when sticking hands up inside the vent cover because there could be insects, animals, or nests present.

Common Defects

  • Vent cover or flap is damaged/missing.
  • Screen is missing or clogged.
  • Flap stuck open or missing.
  • Using PVC for clothes dryer vent ducting is prohibited unless specifically approved by the Authority Having Jurisdiction (AHJ) – 0.016-inch thick rigid metal duct, limited to 25 feet in length with deductions for 45-degree and 90-degree elbows (unless dryer mfg. specs allow greater lengths). Flexible metal duct is limited to 8 feet in length and is to be used as a transition duct between the dryer and the rigid metal duct. Flexible duct shall not be concealed within construction.
Common MistakesNot checking under the the covers to inspect the flaps or check to see if it is clogged.


Report / Software


  • The exterior vent covers were secured to wall, not obstructed, and in generally serviceable condition at the time of inspection.


  • N/A


  • N/A


  • The [word 1] vent [word 2] [word 3]. A qualified contractor should inspect and repair as necessary and according to current standards.
    • Damaged
    • Damaged Cover/Flap
    • Flap Stuck Open
    • Missing Cover/Flap
    • Missing Flap
    • Missing Screen
    • Screen Clogged