Richard Trethewey shows an innovative new way to seal ducts from the inside. (See below for steps.)
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Richard uses a new technology to seal ducts from the inside.
Steps for How to Seal Leaky Ductwork:
1. Remove the grilles from all of the supply and return registers.
2. Plug each duct register with foam rubber and wide strips of tape.
3. Pressurize the duct system with a blower fan.
4. Use a computer to analyze the data to determine the amount of air leaking from the ducts.
5. Use the blower fan to mist the inside of all the dust with liquid-rubber sealant.
6. The sealant will find and plug all air-leaking holes, cracks, and seams.
7. After applying the sealant, run another pressurized blower test to verify the improved results.
Richard demonstrated sealing ducts using the Aeroseal System [https://aeroseal.com/].
Expert assistance with this project was provided by Boucher Energy Systems [https://boucherenergy.com/].
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How to Seal Leaky Ductwork | Ask This Old House
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View Comments
All that work and he’s still left with a massive hole in they duct they drilled just to prove a point
Most HVAC companies are guys who start their business because they know they can do a replacement and pocket 3 grand. HVAC ductwork isn't a trade anymore.
No thanks. Air leakage INSIDE of your home is not loosing any efficiency. Your vents leak air inside you house. What a waist.
What an idiot. Like sealing the ducts will fix the imbalance between up and down. Typical salesman
Will this help lower humidity levels in the house?
Uhhh I’ll stick to mastic
Use liquid nails always works great on duct work
Still waiting on that calculation
lol, they didn't wear breathing protection
What is the cost of this process