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Suggestions Needed on Window Stool Installation

Suggestions Needed on Window Stool Installation

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  #1  
Old 10-31-13, 08:45 AM
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Suggestions Needed on Window Stool Installation

I've installed some new windows (Ply-Gem) in 2x6 exterior walls and it's time to add the trim, but I'm not quite sure how to do the stool. The sill on the window slopes outward at a slight angle (about 15 degree down) and the window pane hits the sill about halfway up...so there is about 1 inch of the sill exposed on the interior side. (I'm probably not describing this well...so I've attached a few photos).

My question is this. How do I install the stool against the window? It seems I have a few options:
1) I could butt the stool against the sill, leaving a slight lip to keep water out (caulk the connection point).
2) I could butt the stool against the window pane itself, going completely over the sill
3) I could butt the stool against the sill with no lip (caulk the connection point).
4) I could notch the stool slightly to sit tight against the sill, but also tight up against the window.
5) I could butt the stool against the sill, but offset it lower (caulk the connection point). NOTE: This would also allow the stool to slide in below the factory installed extension jambs.
6) Something else???

I am probably over thinking this and I'm looking for some experts to set me down the right path. Thanks!!!

- E
 
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  #2  
Old 10-31-13, 10:20 AM
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Options #2 and #4 are what I see the most often. Having the stool come up to the sash gives you a nicer looking job and helps seal the window a little better.
 
  #3  
Old 10-31-13, 10:27 AM
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Number 4 is the common way of doing it, though it will take a bit longer to make it yourself. Have you checked with local yards to see if they carry it? I know HD used to. Clear pine with a 14 degree sloped notch. About 1 1/4" thick IIRC. All you had to do was cut to length and notch the ears.

Note, you have the sill labeled as sash in your drawing. the sash is the moving part of the window.
 
  #4  
Old 10-31-13, 01:09 PM
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You need one of the styles on the bottom of this page.
KB Moulding Collection - Kuiken Brothers Lumber & Building Materials

It will work like #4.
 
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