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Version: 2026.08.01

Ventilation Standards

Coverage Summary

IssueCoveredPeriodNotes
Exhaust fan componentsSee electricalMotor and wiring coverage
Ventilation construction defectsWarranty periodIf due to construction defect
Condensation dripping from bath fan ventsWeather-related, excluded
Ventilation issues from lifestyle/humidityNot a construction defect
Humidifier-related issuesClassic doesn't install humidifiers

Performance Standards

Exhaust Fan Operation

Standard: Exhaust fans should operate as designed when activated.

Coverage: Fan motors and wiring are covered under electrical system standards. See Electrical System for details.

Attic Ventilation

Standard: Attic ventilation is provided through soffit vents, gable end vents, and/or ridge vents as required by building code.

Important: These vents must remain unblocked for proper attic ventilation.

Normal Behavior: Driving rain or snow may sometimes enter through these vents. Do not cover them - proper attic ventilation is essential.

Mechanical Ventilation

Standard: The mechanical ventilation system should be set to operate a minimum of 15 minutes per hour.

Purpose:

  • Balance temperature variations throughout the home
  • Provide fresh air from outside to all registers
  • Prevent excessive moisture from forming on windows

What's Not Covered

The following are excluded from warranty coverage:

  • Bath fan condensation - During extreme cold, condensation can form inside bath exhaust fan venting and drip through the fan. This is caused by temperature differential, not a defect
  • Lifestyle-related issues - High humidity from cooking, bathing, or lifestyle choices
  • Humidifier damage - Classic Homes does not install humidifiers and is not responsible for any related damage
  • Rain/snow through attic vents - Normal during severe weather; vents are code-required
  • Blocked vents - Homeowner-caused obstructions

Filing a Claim

If you believe you have a warranty issue:

  1. Review the Use & Care Guide for troubleshooting steps
  2. Verify exhaust fans are being used during cooking and bathing
  3. Check that mechanical ventilation is running at least 15 minutes per hour
  4. Confirm attic vents are not blocked
  5. For exhaust fan electrical issues, see Electrical System
  6. Request Service

Care Tips: See Ventilation Use & Care for maintenance and troubleshooting guidance.