Replies

1. 
   RRooster | Nov 05, 2006 08:43pm | #1

   Ron, I am in the opposite corner of the country from you so what we do may not apply to your neck of the woods.  Usually, old siding is torn off down to the sheathing, sheathing is replaced if rotten, a new vapor barrier is installed and then the new siding.  You may want to consider hardi plank 12' siding over the panels.

    

   http://grungefm.com

    

1. 
   Piffin | Nov 06, 2006 02:07pm | #3

   In this case, the T1-11 is the shething, so he starts fropm there to do a siding job. RR,
   My greatest concern with this is that you might possibly create a double VB if the existing thin foil is acting as a VB Doubling up can mean that any moisture trapped between will be there almost forever, or untill it causes rot and mold, whichever comes first. So be absolutely certain of how you detail the exterior surface, or do a drainage plane so moisture getting past the new siding can drain away 

    

   Welcome to the Taunton University of Knowledge FHB Campus at Breaktime. where ... Excellence is its own reward!

1. 
   PeteDraganic | Nov 06, 2006 03:39pm | #4

   Pif,

   I was thinking the same thing.  I might forgo the VB as it already exists and I wouldn't want a layer of wood between two VB's.

   http://www.petedraganic.com/

1. 
   DanH | Nov 06, 2006 05:59pm | #5

   What vapor barrier are you guys talking about?
   Seven blunders of the world that lead to violence: wealth without work, pleasure without conscience, knowledge without character, commerce without morality, science without humanity, worship without sacrifice, politics without principle. --Mahatma Gandhi

1. 
   PeteDraganic | Nov 06, 2006 07:09pm | #6

   the one attached to the insulation board.... I thought he said it was foil-faced on both sides

   http://www.petedraganic.com/

2. 
   DanH | Nov 06, 2006 08:44pm | #7

   But if it's foam board that doesn't really make any difference. Just count it as one barrier.
   People never lie so much as before an election, during a war, or after a hunt. --Otto von Bismarck

3. 
   Piffin | Nov 07, 2006 02:44am | #8

   He has a VB already in the foil face on the foam board behind the T1-11. Then he is speaking of adding a second VB with another foil faced foam board over the T1-11. %That encapsulates the sheathig - a structural component, between two VBs. 

    

   Welcome to the Taunton University of Knowledge FHB Campus at Breaktime. where ... Excellence is its own reward!

4. 
   DanH | Nov 07, 2006 02:53am | #9

   In one case he's putting fanfold over the existing T1-11. Fanfold is perfed to eliminate its "vapor barrierness". In the other case he's got two pieces of foam back-to-back.At least that's how I read it.

   People never lie so much as before an election, during a war, or after a hunt. --Otto von Bismarck

5. 
   Piffin | Nov 07, 2006 03:52am | #10

   OK, ity's that hot west side I was concerned about the second ply of foil but it looks like on that side he is removing some siding. I presume there is still some sort of plywood under the siding to be caught between the layers, but maybe not. He'll have to decide since he is the one who knows. 

    

   Welcome to the Taunton University of Knowledge FHB Campus at Breaktime. where ... Excellence is its own reward!

6. 
   DanH | Nov 07, 2006 05:19am | #11

   Yeah, it's all a little hard to picture -- I don't have much context for visualizing construction in Florida. Probably keeping mosquitos out is as important as anything.
   People never lie so much as before an election, during a war, or after a hunt. --Otto von Bismarck

2. 
   DanH | Nov 05, 2006 09:12pm | #2

   In general the housewrap shouldn't do any harm, so long as attention is paid to flashing details, so that moisture doesn't get behind the housewrap. Not clear how much good it will do in your case, though.

   Seven blunders of the world that lead to violence: wealth without work, pleasure without conscience, knowledge without character, commerce without morality, science without humanity, worship without sacrifice, politics without principle. --Mahatma Gandhi
3. 
   BruceT999 | Nov 07, 2006 06:09am | #12

   It's Florida, guys. I'd go for max insulation by furring out the walls and filling the space with chads - 50-50 mix of hanging and dimpled. :)

   BruceT