Drafts can lead to higher energy bills, uncomfortable indoor temperatures, and increased wear on your HVAC system. Identifying and sealing these air leaks is a simple and cost-effective way to make your home more energy-efficient. Follow these steps to check your home for drafts and eliminate them for good.
Why Checking for Drafts is Important
- Energy Efficiency: Reduces heating and cooling costs.
- Comfort: Eliminates cold spots and drafts.
- HVAC Longevity: Reduces the strain on your heating and cooling systems.
- Environmental Impact: Lower energy usage means a smaller carbon footprint.
Tools You’ll Need
- Incense stick or candle
- Flashlight
- Handheld infrared thermometer (optional)
- Weatherstripping materials or caulk (for sealing leaks)
- Utility knife or scissors
Step-by-Step Guide to Checking for Drafts
1. Perform a Visual Inspection
- Look for visible gaps or cracks around windows, doors, and baseboards.
- Inspect areas where plumbing, wiring, or ductwork enters the house.
- Check for gaps in weatherstripping around doors and windows.
- Examine attic hatches and vents for potential air leaks.
2. Use the Incense or Candle Test
- On a windy day, close all windows and doors and turn off your HVAC system.
- Light an incense stick or candle and hold it near potential draft points, such as:
- Door and window frames.
- Electrical outlets on exterior walls.
- Baseboards and corners of rooms.
- Watch the smoke or flame for movement. If it flickers or is blown in a specific direction, you’ve found a draft.
3. Conduct a Touch Test
- Run your hand along window and door frames to feel for cold air entering the house.
- Pay special attention to areas where two different building materials meet, such as where brick meets wood.
4. Use an Infrared Thermometer
- Point the thermometer at areas prone to drafts to measure temperature variations.
- A noticeable difference in temperature indicates an air leak.
5. Check with a Flashlight
- Have someone stand outside your home at night while you shine a flashlight along door and window seals.
- If light is visible outside, there’s a gap that needs sealing.
6. Inspect the Attic and Basement
- Attic:
- Look for gaps around vents, pipes, and chimneys.
- Check the insulation for areas where air may be escaping.
- Basement:
- Inspect rim joists and sill plates for cracks or gaps.
- Look for leaks around the foundation.
7. Examine HVAC Ducts
- Check ducts for loose connections or gaps where air can escape.
- Seal leaks with duct tape or mastic.
How to Seal Drafts
- Windows and Doors:
- Use weatherstripping to seal gaps around frames.
- Apply caulk to cracks and gaps that are stationary.
- Electrical Outlets:
- Install foam gaskets behind outlet covers on exterior walls.
- Attic and Basement:
- Use spray foam insulation for larger gaps.
- Seal smaller cracks with caulk.
- HVAC Ducts:
- Use mastic or foil-backed tape to seal leaks.
When to Call a Professional
- If drafts persist after sealing the obvious gaps.
- For larger insulation or HVAC ductwork projects.
- When a full home energy audit is needed for optimal efficiency.
Final Thoughts
Checking for drafts is a straightforward process that can significantly improve your home’s energy efficiency and comfort. By identifying and sealing air leaks, you’ll enjoy lower energy bills and a cozier home. For professional assistance with sealing drafts or improving insulation, contact Colin Can Help for expert services tailored to your needs.