Duct tape is a lousy choice for ducts despite it s name.
Duct disconnected in attic.
Since burying ducts is simply one of several ways to address the energy waste associated with the decision to locate ducts in a vented unconditioned attic it s worth taking a fresh look at all of the possible solutions to the attic duct problem.
If an exhaust duct is disconnected all the warm humid air from the house is pumped directly into the attic.
The mold might be an issue.
This moisture condenses on the cool roof sheathing and eventually causes mold growth and sheathing failure.
Or excess flex duct.
Disconnected cool air supply duct hidden in crawl area.
The unconditioned space also houses his hvac system.
Ted also has inherited a powered attic ventilator.
Before adding blown insulation inspect and test the ducts for missing or torn duct insulation.
The 1 800 square foot brick ranch in climate zone 4 dates from the 1960s but the previous owner installed both a furnace and ductwork in the attic just four years ago.
Use the foil tape instead.
It is very important for the warm moist air to be exhausted outside not into the attic.
Disconnected or leaking ducts.
Yes you can use a zip tie or large hose clamp to attach the hose to vent.
We found that the ducts had become disconnected in the attic crawl space where the air handler was placed.
In existing homes with vented attics and hvac ducts that are installed on the attic floor bury ducts in blown attic insulation when adding or increasing attic insulation.
Top it with the foil tape for a good seal.
A client who lived in an apartment in new york city engaged our company to find why her city apartment could not get cool even though she had a new air conditioning system installed.
The reason is straightforward.