I'm installing a 36" x 18" replacement slider window in my basement. The window fits well in the 2x6-constructed frame that is already there. The sill is flat. There is no angle to it. The instructions that came w/ the window say "Install supplied sill angle on wooden sill stool, 1/8" behind the blind stop. Caulk the inside and outside edges of the sill angle, where it meets the stool." The window came with a 36" piece of angle iron. I've already installed 1/2" quarter round blind stops on the exterior top and 2 sides. These are 1/2" from the outside edge of the 2x6-constructed frame.
1. What is the purpose of installing this piece of angle iron?
2. How do you install it? Do the 2 edges touch the 2x6-constructed, flat, non-angled frame, with one of the edges touching the bottom front of the window, like a tent? Does it get turned over and does one of the 2 sides get tucked under the window? Do I drill holes in it and attach it with screws? The angle iron has a short side and a longer side. Which side goes where? I don't get it.
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