Fasten the decorative wood frame to the drywall ceiling to complete the bathroom ventilation fan installation. This project is continued from How to Replace a Bathroom Exhaust Fan and Ductwork – Part 9.

Bathroom Vent Fan: Install the Ceiling Moulding

I installed the wood moulding for the Panasonic WhisperCeiling FV-11VQ5 bathroom fan with 2 inch brad nails set into the joist and 2×2 mounting frame on three sides.  I set the brad nails about 1/4 inch from the inside edge of the trim moulding for two reasons:

  1. The 2 inch brad nails are set in to the ceiling joist and 2×2 mounting frame.
  2. The 13 inch square fan grille will cover the counter sunk brad nail heads.

The brad nailer is a wonderful tool because it automatically counter sinks the brads without all the pounding, shaking and marring that would happen if driving in finish nails with hammer:

Install Ceiling Moulding for a Bathroom Ventilation Fan to Cover the Drywall Gap

Install Ceiling Moulding for a Bathroom Ventilation Fan to Cover the Drywall Gap

The trim moulding covered the gap in the drywall ceiling opening for the old work installationbetween the first floor ceiling and second floor joists. Notice how the trim moulding does not cover the Panasonic WhisperCeiling fan mounting flange to allow the moulding to flat against the ceiling. No brad nails are set on the right side of the moulding because this is the location of the 2 inch gap in the drywall ceiling on the duct connector side of the fan.

Panasonic WhisperCeiling Bathroom Fan FV-11VQ5 with Trim Moulding

The Panasonic FV-11VQ5 fan grille is 13 inches square and covers the brad nail heads. The grille springs hold the grille tight against the wood trim moulding. I didn’t fill the brad nail heads with wood putty so that someone working on the fan in the future will understand how the ceiling trim is installed.

There’s no need to caulk around the fan because it’s mounted to the face of the bathroom ceiling between the 1st and 2nd floors. The fan will always be pulling air from the bathroom, as opposed to a fan installed in the attic behind the drywall ceiling could draw in hot attic air.

Panasonic WhisperCeiling FV-11VQ5 Fan Installation: Grille and Wire Springs

Panasonic WhisperCeiling FV-11VQ5 Fan Installation: Grille and Wire Springs

View of the final installation for the Panasonic WhisperCeiling FV-11VQ5 bathroom fan with the grille covering the brad nails in the ceiling trim moulding:

Panasonic WhisperCeiling FV-11VQ5 Fan Installation: Grille and Wire Springs

Panasonic WhisperCeiling Bathroom Fan: Ceiling Trim Moulding

Bathroom ceiling fan installation from another angle:

Panasonic WhisperCeiling Bathroom Vent Fan Installed with Ceiling Moulding

Panasonic WhisperCeiling Bathroom Vent Fan Installed with Ceiling Moulding

Panasonic WhisperCeiling Bathroom Fan Product Review

After trying out the new the Panasonic FV-11VQ5 bathroom exhaust fan for a several weeks, I’ve found that it works as advertised. The Panasonic bathroom fan operates very quietly with no perceptible vibration and moves a lot of air despite the less than optimal 25 foot run of 4 inch insulated flexible duct routed through the bathroom ceiling and garage to the outdoors. I checked the outside vent cap with the fan running and the back-draft flap was in the full open position indicating a strong air flow.

The old economy bathroom fan appeared to do nothing and bathroom would be steamy after a shower. With the new Panasonic WhisperCeiling fan the bathroom doesn’t get fogged up  – this is nice so the humid air isn’t going into the rest of the house, especially in the summer when it’s extra work for the air conditioner to remove the moisture.

I did have a minor problem – the bathroom was steamy when my wife took a shower. She doesn’t turn on the bathroom exhaust fan because she likes it warm and steamy. I explained the purpose of the bathroom vent fan and she agreed to turn on the fan for 15 minutes when she leaves. An upgrade would be to replace the fan toggle switch with a timer switch so we don’t forget to turn off the fan.

Take care,

Bob Jackson

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