Bath exhaust fan quieter when drywall closed full?

Houston Doyle asked a question: Bath exhaust fan quieter when drywall closed full?
Asked By: Houston Doyle
Date created: Sat, Jul 31, 2021 8:05 PM

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Those who are looking for an answer to the question «Bath exhaust fan quieter when drywall closed full?» often ask the following questions:

❔ Bath exhaust fan quieter when drywall closed back?

Bath exhaust fan slows down when showering and speeds up when i get out and open the door. Whats going on? ... Gutted and rebuilt a back yard shack and turned it into an awesome home office… get ready for closing the rest of the walls and drywall for the ceiling. Week 7. More garbage.

❔ Bath exhaust fan quieter when drywall closed bottom?

Exhaust fans are typically installed in bathroom ceilings and in kitchen range hoods, or sometimes kitchen ceilings or walls, to provide spot ventilation. Generous holes are often cut in the ceiling drywall for installation of bath exhaust fans and kitchen exhaust fan ducts, leaving gaps where the fan box or duct is installed.

❔ Bath exhsust fan wuiter when drywall closed?

A wall-mounted exhaust fan should be installed as close to the ceiling as the wall framing allows. It should be installed near the shower (but not in the shower stall). Backdraft dampers that come with bathroom exhaust fans are not airtight, and there are technical reasons why it's difficult to make them airtight, so some air leakage is inevitable.

10 other answers

The Bath Fan Upgrade Kit is simply a quieter replacement fan that fits in the existing housing, so there’s no need to rip up the ceiling, and the new grille gives your fan a new look. The more powerful motor in this quieter fan means the fan will do a better job of ventilating the room.

A plumber will be able to provide more information on what's going on in the walls or under the floor. The plumber might, but the HVAC expert certainly will be able to tell you if the fan is venting outside as it is designed to and not just into the insulation above the bathroom where the moisture can be absorbed by the ceiling joists and drywall.

By decoupling the wall and ceiling from its existing layer of drywall, you could reduce the noise coming in or out of the bathroom by as much as 75%. Every wall will have a different effect, but there will still be a significant amount of noise reduction. 4. Reduce Air Vent Noise in Bathroom How to reduce exhaust-fan-Noise in Bathroom

“Sone” is the term used in the industry to describe how loud a bath fan is. The lower the number, the quieter the fan will be. One sone is roughly equal to the noise your refrigerator makes. Most fans are between .75 and 1.5 sones, but there are some as low as .3 or as high as 6! PRO TIP: Experts generally recommend fans with ratings of 1.5 ...

A wall-mounted exhaust fan should be installed as close to the ceiling as the wall framing allows. It should be installed near the shower (but not in the shower stall). Backdraft dampers that come with bathroom exhaust fans are not airtight, and there are technical reasons why it's difficult to make them airtight, so some air leakage is inevitable.

FYI at the vent outside your house from that fan there is usually a little cover that blocks the vent. Its light so when the air blows against it when the fans on it opens up. Might be basically opening and closing rapidly due to it being damaged, something semi blocking it, or the perfect amount of air to cause this (unlikely).

Fan Noise. When selecting a vent fan, consider how much noise they make. Bathroom exhaust fans measure noise in sones. Rather than a 4-6 sone bathroom fan, look for one that’s close to or at a 1.5 sone rating—a much quieter fan. You may have to put up with some noise for a more powerful fan, depending on the fan’s size and pipe run layout.

I used a drywall knife to enlarge the existing fan hole and a few screws to mount the fan body. If the bathroom door is closed, the fan can't pull enough air under the door to clear the steam from a hot shower but with the door cracked, the steam is exhausted immediately. Taking another inch off the bottom of the door could solve this problem.

Place the fan in the cut-out hole so that the bottom edge of the fan is flush with the bottom of the ceiling drywall. You will need a partner for this step, as you cannot see the ceiling from this position. Screw the fan into the side of the joists with the cordless drill.

Another vote for 6" but with a 6" capable exhaust fan. Quieter and higher CFM. Make sure you duct run is the more straight as possible. Your duct should go down toward the exterior and it should be insulated. Ridgid will be better if you have a long run. Flexible will be cheaper and much easier to work it.

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