+ Reply to Thread
Results 1 to 4 of 4
  1. #1
    Join Date
    Feb 2012
    Posts
    4

    Smile Insulating bathroom fan duct

    When installing a bathroom vent fan duct through an uninsulated attic should the vent duct be insulated to prevent or reduce condensation? It is about a 6 foot run of duct. We live in West Virginia where the winters can be quite cold.
    Last edited by norred; 02-22-2012 at 04:33 PM.

  2. #2
    Join Date
    Mar 2009
    Posts
    1,387

    Default Re: Insulating bathroom fan duct

    Howdy surely the attic has some insulation???????

    So you can wrap the pipe with fiberglass . The fan should have a flap door designed to stop back drafting. Be sure to exhaust the air out of the dwelling not just into the attic.
    Any an all of my comments are just my opinion and not to be confused with facts.

  3. #3
    Join Date
    Feb 2012
    Posts
    4

    Default Re: Insulating bathroom fan duct

    Howdy,

    The attic does have insulation, guess I should have said "unheated" instead of uninsulated!

    Thanks for the response Timothy, much appreciated!

    Norred

  4. #4
    Join Date
    Jul 2009
    Location
    Northeast
    Posts
    661

    Default Re: Insulating bathroom fan duct

    You could use flex duct which can be bought at your local Home Store, Lowes , Home Depot, etc. and yes it should be insulated to stop condensation and mold

Tags for this Thread

Posting Permissions

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