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Version: 2011.07.01

Ventilation

Homes today are built more tightly than ever. This saves energy dollars but creates a potential concern. Condensation, cooking odors, indoor pollutants, radon, and carbon monoxide may all accumulate. Classic provides mechanical and passive methods for ventilating homes.

Health and Safety

Your attention to ventilation is important to your health and safety.

Attic Vents

Attic ventilation occurs through vents in the soffit (the underside of the overhangs) or on gable ends. Driving rain or snow sometimes enters the attic through the vents. Do not cover them to prevent this.

Crawl Space Vents

Homes with crawl spaces usually include two or more vents.

SeasonVent Position
Summer monthsOpen
Winter monthsClosed
warning

Failure to close crawl space vents in winter may result in plumbing lines freezing in the crawl space.

Daily Habits

Your daily habits can help keep your home well ventilated:

  • Do not cover or interfere in any way with the fresh air supply to your furnace.
  • Develop the habit of running the hood fan when you are cooking.
  • Develop the habit of running the bath fans when bathrooms are in use.
  • Air your house by opening windows for a time when weather permits.

Proper ventilation will prevent excessive moisture from forming on the inside of the windows. This helps reduce cleaning chores considerably.


Warranty Coverage: See Ventilation Standards for coverage details.