air duct sealing maintenance tips

HVAC

The answer to 'air duct sealing maintenance tips' is that regularly sealing and maintaining your air ducts can improve the efficiency of your HVAC system, reduce energy costs, and improve indoor air quality. Proper air duct sealing involves inspecting for leaks, cracks, or gaps, and then using mastic sealant or metal foil tape to seal any problem areas.

It's recommended to inspect and seal your air ducts every 2-3 years, or if you notice any visible signs of damage or air leaks. This is a task that most homeowners can do themselves, but it's important to take safety precautions like wearing protective gear and ensuring proper ventilation. If you have extensive damage or are unsure about the condition of your ducts, it's best to hire a professional HVAC technician to inspect and seal them properly.

Sources

1
ENERGY STARauthority
2
ACCAauthority
3

Step-by-Step Guide

  1. 1

    Inspect Ductwork

    Visually inspect all accessible air ducts for any cracks, gaps, or disconnected joints. Pay close attention to bends, seams, and connections.

  2. 2

    Clean Ductwork

    Thoroughly clean the ductwork to remove any dust, dirt, or debris before applying sealant.

  3. 3

    Apply Sealant

    Use mastic sealant or metal foil tape to seal any cracks, gaps, or joints. Apply the sealant in a smooth, even layer and allow it to fully dry.

  4. 4

    Verify Airtightness

    Once the sealant has dried, recheck the ductwork for any remaining leaks and seal them as needed.

Frequently Asked Questions

How do I know if my air ducts need sealing?

Look for visible cracks, gaps, or disconnected ductwork. You may also notice increased dust, higher energy bills, or uneven heating/cooling as signs that your ducts need attention.

What type of sealant should I use for air ducts?

The best sealants for air ducts are mastic sealant or metal foil tape, as they create a long-lasting, airtight seal.

Get Help from a Local Pro

Connect with certified professionals in your area

Free, no-obligation quotes from local professionals