Air Duct Sealing with Aeroseal Overview

Aug 15, 2024

Lecture Notes: Air Duct Sealing with Aeroseal

Introduction to Air Duct Issues

  • The EPA estimates that up to 40% of air moving through the duct system in homes is lost due to leaks.
  • Problems Caused by Air Duct Leaks:
    • Difficulty in heating and cooling certain rooms
    • Increased humidity levels
    • Entry of dust and allergens into living spaces
    • Higher heating and cooling bills
  • Challenges in Repairing Ducts:
    • Ducts are often located in concealed areas like walls, ceilings, attics, and basements
    • Traditional repairs can be difficult and expensive

Introduction to Aeroseal

  • Unique Solution:
    • Aeroseal is the only method that seals air ducts from inside the ductwork
    • No need for destructive access to walls or ceilings

Aeroseal Technology

  • How it Works:
    • Small, dry adhesive particles are blown into the blocked duct system.
    • Particles are heated and suspended in the air, moving through the duct system to find holes.
    • Particles attach to the edges of the holes to create seals.
    • Continues until the ductwork is entirely sealed.
  • Benefits:
    • Improved comfort
    • Better indoor air quality
    • Reduced energy bills

Home Seal Pro System

  • Technological Advancements:
    • Wireless capabilities and mobile Pro trailer system make installations easier and faster.

Aeroseal Process Steps

  1. Initial Inspection:
    • Technician conducts a thorough inspection of the home.
    • All vents (supply and return) are blocked using closed cell foam blocks.
  2. Setup:
    • Connection of flexible plastic tubing from Home Seal Pro unit @ trailer to injection point @ furnace.
    • The entire Aeroseal process is controlled by a wireless tablet.
  3. Pre-Seal Test:
    • Conducted to measure the initial rate of leakage.
  4. Sealing Process:
    • Wireless tablet allows for mobility for safety checks and consumer engagement.
  5. Post-Seal Test:
    • A final leakage test is conducted.
    • Certificate of completion is provided, showing pre and post leakage rates and percentage of improvement (up to 98%).
  6. Final Steps:
    • Removal of blocks from vents.
    • Injection point is patched.
    • Heating and cooling system is turned back on.

Conclusion

  • Effectiveness:
    • Aeroseal is an effective, affordable, and viable method for sealing air ducts.
    • Suitable for homes of all sizes and ages.
    • Considered the best solution available today for duct analysis and sealing.