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Help mounting replacement bathroom fan/light/heater with no attic access

Help mounting replacement bathroom fan/light/heater with no attic access

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Old 03-26-20, 01:48 PM
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Help mounting replacement bathroom fan/light/heater with no attic access

I've seen fans that are designed to be mounted with no attic access, however they are all smaller. My opening is 8.25 x 14.5". I haven't found any fans in that size that are specified for no attic access.

The opening is between two joists. If I could mount the rails and then hang the housing on them after they are mounted that would work.

However the fans I've bought and brought home all have rails that SLIDE INTO the fan housing and can't be mounted first.

Does anyone have any ideas/suggestions for me? Thank you.
 
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Old 03-26-20, 04:18 PM
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Welcome to the forums.

The slide rails are for a new installation with no sheetrock......not a retrofit.
I usually add furring strips or spacers off the joist and screw directly thru the fan combo right into the furring strips without using any of the slide brackets. Sometimes your own holes will need to be drilled thru the frame.
 
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Old 03-27-20, 04:35 AM
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Hi, donít forget that it will have to be vented outside.
Geo
 
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Old 03-27-20, 05:10 AM
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don’t forget that it will have to be vented outside.
Without access to attic how you gonna vent through roof.
 
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Old 03-27-20, 10:04 AM
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Thanks for the great tip. One side of the existing opening is directly against a joist, the other side of the opening is approximately 8 inches away from the next joist. What would this furring strip or spacer look like?

Also, there is an existing vent tube from the previous fan that I removed.

Thanks everyone.
 
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Old 03-27-20, 10:11 AM
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You have to make up 8" ?
Is that 8" open from below or would it behind sheetrock ?

Look at the diagram. That would be looking up at the ceiling. The fan would be mounted tight to one joist. The other side gets attached to a piece of wood that you can screw on top of the sheetrock. It could be a 2x4 laying on the flat..... even a 2x3 is ok.

Name:  fan.jpg
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Old 03-30-20, 04:40 AM
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Thank you for the advice, I got the new fan in and it looks great!
 
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Old 03-30-20, 09:33 AM
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Good job. Name:  thumb.jpg
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Size:  1.6 KB Thanks for letting us know how you made out.
 
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