Attic, Insulation, & Ventilation

According to InterNACHI Standards of Practice

3.9. Attic, Insulation, & Ventilation

I. The inspector shall inspect:

  1. insulation in unfinished spaces, including attics, crawlspaces and foundation areas;
  2. ventilation of unfinished spaces, including attics, crawlspaces and foundation areas; and
  3. mechanical exhaust systems in the kitchen, bathrooms and laundry area.
II. The inspector shall describe:
  1. the type of insulation observed; and
  2. the approximate average depth of insulation observed at the unfinished attic floor area or roof structure.
III. The inspector shall report as in need of correction:
  1. the general absence of insulation or ventilation in unfinished spaces.

IV. The inspector is not required to:

  1. enter the attic or any unfinished spaces that are not readily accessible, or where entry could cause damage or, in the inspector’s opinion, pose a safety hazard.
  2. move, touch or disturb insulation. 
  3. move, touch or disturb vapor retarders. 
  4. break or otherwise damage the surface finish or weather seal on or around access panels or covers. 
  5. identify the composition or R-value of insulation material. 
  6. activate thermostatically operated fans. 
  7. determine the types of materials used in insulation or wrapping of pipes, ducts, jackets, boilers or wiring.
  8. determine the adequacy of ventilation.