Replies

1. 
   Scott | Sep 22, 2009 09:29pm | #1

   I know it's no fun hacking around in an attic, but I'd be tempted to bite the bullet, get up in there, and use spray can foam around the register boots. I think you'd get better insulation value, and any little bit that oozes past can be neatly trimmed once it dries.

   Scott.

1. 
   IMERC | Sep 22, 2009 09:31pm | #2

   just use low modulas so that when the foam expands things don't get shoved around.. 

   Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming<!----><!----><!---->

   WOW!!! What a Ride!

   Forget the primal scream, just ROAR!!!

    

   "Some days it's just not worth chewing through the restraints"

1. 
   Scott | Sep 22, 2009 09:35pm | #3

   Yeah, I should have mentioned that. It'll distort flimsy tin boots too. Go easy with it.

   Edited 9/22/2009 2:35 pm by Scott

2. 
   jimjimjim | Sep 22, 2009 09:56pm | #4

   MB,

   Where is your leak?  Is it

   between the register boot and the finished ceiling?

   at an open seam or hole(s) in the boot?

   between the boot and the attached duct?  The cable guy may have dislodged the connection.

   Spray foam (or even caulk) would work for the first.  You can remove the cover and work from below.  Try not to make a mess with the foam.  You need foil tape and insulation for the other problems.  An open seam in the boot can be taped from below (the inside) but otherwise you need to work from above.

   In any case, the boot, if installed correctly, has ears that are sandwiched between your drywall and wood structure above - you won't be able to cleanly push it up into the attic space.

   Jim x 3

1. 
   MBaybut | Sep 23, 2009 12:59am | #5

   Thanks,
   When I pull back the insulation in the attic I can feel the air leaking around where the "vent box" meets the drywall. The duct work is the flex foil type.
   Thanks again,
   Mike

2. 
   Snort | Sep 23, 2009 01:00am | #6

   You may want to take off the register cover 1st anyway. If the seams in the metal boot haven't been sealed, I'd get some duct sealing caulk on all the seams... then check out your duct lines.http://www.tvwsolar.com

   We'll have a kid

   Or maybe we'll rent one

   He's got to be straight

   We don't want a bent one

   He'll drink his baby brew

   From a big brass cup

   Someday he may be president

   If things loosen up

1. 
   IMERC | Sep 23, 2009 01:17am | #7

   an use mesh tape with it... 

   Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming<!----><!----><!---->

   WOW!!! What a Ride!

   Forget the primal scream, just ROAR!!!

    

   "Some days it's just not worth chewing through the restraints"