+ Reply to Thread
Results 1 to 2 of 2

Hybrid View

  1. #1
    Join Date
    Dec 2008
    Posts
    1

    Default Cold Air Return Insulation

    There is a cold air return running under my first floor. Underneath the floor is an unheated garage and laundry room. Inside the cold air return is a thin batt of fiberglass insulation. Of course after 45 yrs it is very dirty. If I remove the insulation, should I replace it with more insulation?
    Please email the answer to Murray1381@hotmail.com. Thank you

  2. #2
    Join Date
    Aug 2008
    Posts
    54

    Default Re: Cold Air Return Insulation

    Yes. Insulate any ductwork, return or heat run in unconditioned areas. We use R-11 duct wrap for these purposes. Before re-installing insulation, seal all joints with furnace mastic. If joists are panned over for returns, also seal the joint where the joist and floor meet with a bead of caulk.

    Quote Originally Posted by Murray1381 View Post
    There is a cold air return running under my first floor. Underneath the floor is an unheated garage and laundry room. Inside the cold air return is a thin batt of fiberglass insulation. Of course after 45 yrs it is very dirty. If I remove the insulation, should I replace it with more insulation?
    Please email the answer to Murray1381@hotmail.com. Thank you

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
  •