Replies

1. 
   Scott | Jul 14, 2012 10:55pm | #1

   Mine are up against the sheathing.

2. 
   DanH | Jul 14, 2012 11:05pm | #2

   Are you sure you have sheathing, under the T1-11?  Are you planning to trim the window somehow?

1. 
   cwent7 | Jul 14, 2012 11:13pm | #3

   I believe so

   It looks like there is another layer of T1-11 underneath but running diagonal.  One reason we did it this way is that those boards were not cut very straight and pieces were an inch or so from the edge of the stud.   Also they seemed a bit brittle and we thought they might break.

1. 
   cwent7 | Jul 14, 2012 11:14pm | #4

   Forgot to answer that part...

   Trimming with 1x4 Aztec trim.

3. 
   florida | Jul 15, 2012 08:36am | #5

   You're correct. The window should be under the T1-11 and the flanges taped to the sheathing. Any window mounted on top of T1-11 is going to leak at the top, 100 % of the time. You need to remove the sheet or sheets of T1-11 around the window, set the window then trim the siding so it fits snug against the window.

1. 
   Scott | Jul 15, 2012 01:19pm | #6

   >>>and the flanges taped to

   >>>and the flanges taped to the sheathing.

   Interesting detail. Unfortunately I didn't do that. Is it to stop air infiltration?

4. 
   cwent7 | Jul 15, 2012 09:51pm | #7

   One thing I didn't mention is that I have a 2 foot overhang all the way around the house so I should not need to worry about leaking. I ended up keeping it this way for 2 reasons since the leaking should not be an issue.

   1. Making the trim inset into the siding may look strange and it is a lot to caulk.

   2. If I ever side the house I can go right over the T1-11 and I won't have to touch the trim.

1. 
   Scott | Jul 16, 2012 07:10pm | #9

   >>>One thing I didn't mention

   >>>One thing I didn't mention is that I have a 2 foot overhang all the way around the house so I should not need to worry about leaking.

   How tall is the house? I've got two foot overhangs too, but stil find water all around the lower floor windows after a storm with lots of wind.

5. 
   sungod | Jul 16, 2012 05:42pm | #8

   Installing New vinyl window (post #206485)

   Having the eaves overhang, just made your job easier.  Just caulk a lot before installing the trim around the windows

1. 
   calvin | Jul 16, 2012 09:42pm | #10

   sun

   Sungod wrote:

   Having the eaves overhang, just made your job easier.  Just caulk a lot before installing the trim around the windows

   you're kidding, right?

1. 
   cwent7 | Jul 17, 2012 10:52pm | #11

   I do realize caulking can fail over time but there are quite a few barriers that need to be overcome before water would ever get in.  Do you have a suggestion?  I think the trim would look bad if I put the flange under the siding.

6. 
   DanH | Jul 17, 2012 11:04pm | #12

   Before you install the trim, cover the flange with peel-and-stick rubber flashing.

1. 
   cwent7 | Jul 18, 2012 07:38am | #13

   I did plan on that. Thank you for all the help.