(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 4 of 4

Thread: Exhaust fan through soffit--how?

  1. #1
    DIY Member Bosun's Avatar
    Join Date
    Jan 2005
    Location
    Minneapolis
    Posts
    89

    Default Exhaust fan through soffit--how?

    Hi--I have a clay tile roof, so I will need to go through the small attic to the soffit, andf vent out the bottom of the soffit. Will I need to use a hole saw to get though the board where the house supports the roof?

    1924 house, concerned about this install. I realize this post might be misplaced, but I can't seem to find a bath-fan forum anywhere!

    bosun

  2. #2
    DIY Senior Member TJanak's Avatar
    Join Date
    Sep 2009
    Location
    South TX
    Posts
    152

    Default

    I used 3" rigid metal duct for the whole run except for going between the roof and the top plate on the wall. In that 1' length I used flex because the opening was almost 3" tall but you need to make an immediate turn down to the soffit. I would not cut into the plate. I even tried to use a metal elbow but it would not quite fit and you can't squeeze them without failure. Not sure how yours looks though.

  3. #3
    DIY Member Bosun's Avatar
    Join Date
    Jan 2005
    Location
    Minneapolis
    Posts
    89

    Default

    Yep--same sort of space betwen the top plate and the space betwen the roof rafters. I tried peeking up into the soffit yesterday by removing one of the exterior vents. full of insulation... (?)

  4. #4
    Forum Admin, Expert Plumber Terry's Avatar
    Join Date
    Aug 2004
    Location
    Bothell, Washington
    Posts
    14,202
    Blog Entries
    1

    Default

    If it's between the rafters, it's not bearing.

    You should be able to cut a hole for the bath vent.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •