Learn professional techniques to find air leaks and drafts in your rental home
Before you can fix drafts, you need to find them. This guide covers simple, effective techniques to identify air leaks around windows, doors, and other common problem areas in rental units.
Begin with a thorough visual examination of your rental unit:
Take photos of any visible gaps to track which areas need attention.
On a cold, windy day, carefully move your hand around potential draft areas:
You'll feel cold air movement where drafts are present. Mark these locations with painter's tape for later sealing.
Light an incense stick or candle and hold it near suspected draft areas:
This is one of the most reliable methods to visualize air movement.
A simple, safe alternative to the candle test:
Create a prioritized action plan:
This documentation will help you purchase the right materials and track your progress.
The #1 source of drafts in rental units. Check the frame perimeter, where the sash meets the frame, and around window air conditioners.
Especially at the bottom sweep area and around the frame. Apartment corridor doors often have large gaps.
On exterior walls, outlets can allow cold air to enter through gaps in insulation behind the wall plate.
Where baseboards meet the floor or wall, small gaps can allow significant air infiltration over time.
Sliding doors typically have gaps along the sides, top, and bottom of the sliding panel.
Exhaust fan openings can allow backdrafts when not in use, especially in high-rise buildings.
While most minor draft sealing is tenant-friendly, some issues require landlord attention:
Now that you've identified problem areas, explore our guides for renter-safe weatherproofing solutions: