If the exhaust fan ducts pass-through space like the attic, it is essential to insulate the ducts.
The performance of the exhaust fans in the bathroom rests upon the insulation of the ducts too.
If the ducts passing through the unheated spaces are well insulated, the exhaust fan’s working and life improve.
The job of the vent fan is to expel out the warm and humid air of the bathroom.
If this air while going out passes all the way through the colder part of the duct, then the things can turn out to be bad.
This can cause corrosion, condensation, and even leakage in the walls and ceilings. The excessive humidity also results in the growth of mold.
There is a specialized duct wrap insulation available that can insulate the duct properly.
The most important thing to manage before the insulation is removing the cheap and low-quality vent duct.
It is better to get the metal duct that can work wonders for your exhaust fan after proper insulation.
A perfectly insulated metal duct is extremely helpful in getting rid of excessive air and water vapors.
The Process
The process of insulating the bathroom exhaust fan includes the following steps:
Use a foil duct tape to seal the joints in the duct. Don’t leave any single joint.
If you wrapped the foil several times along the duct, it would turn out to be a reliable seal that would prevent condensation and related.
Make sure that the wrap at the starting and the final point of the duct are secure. The duct tape is there to keep it secure at the point where it will meet the fan.
Prefer opting for the spiral pattern to roll the duct tape around the duct. It is important to overlap the edges.
Make sure that the overlapping happens at least 1 inch. Some of the duct wraps are used perpendicularly. Some insulation needs an air gap.
The spacers stay in between the duct and the insulation.
The fiberglass insulation is fragile, and so the user must make sure that the wrap is properly done around the duct but without being too hard.
Avoid compression as it reduces effectiveness.
The wrapping starts at the lowest point and then gradually moves up. Make sure that the wrap is firmly surrounding the vent cap. Use secure duct tape to secure the vent cap.
The Final Words
The bathroom exhaust fan determines the health of the entire home. The exhaust fan keeps the unnecessary humidity and odor away.
Thus, the bathroom remains tidy and clean. It is for this reason that the insulation is also essential besides other improvements.
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