Forum Title: PVC trim - putting it all together?
I've been browsing PVC window molding for trimming the outside of exterior windows in home centers and online. I also have a few books. But I'm not finding information on how the various pieces/profiles of trim go together to make a window casing, and what the whole assembly looks like when you're done. The windows are aluminum and some site-built wood non-opening windows that just need trim around them. I'm looking for something simple. . . . from past experience with this kind of siding I would like to be sure the top edge and bottom sill slope outward and have a drip channel. I'm finding an array of profiles (AZEK Moulding Styles & Sizes - Profiles for AZEK Moulding) and I am thinking I need a drip cap at the top (Drip CapAZM-197 11/16 x 1 5/8 x 16') and a sloped sill at the bottom (http://Sub Sill Nose AZM-6933 1 17/3...x 1 3/8� x 16�) with simple 1x verticals at the sides. Will this work or am I misunderstanding how these pieces work together? They both have odd design features (like the extension at the back of the sub sill nose) that don't seem meant to install on a flat surface. The drip cap has that bump at the top, not clear why or how it would integrate into flashing . . .
Category: Windows & Doors Post By: NAOMI BLAIR (Flint, MI), 01/10/2019

2x4's flat are never structural. cut it out.

- BRYAN COLEMAN (College Station, TX), 02/21/2019

Thanks. Do you know what the Sub Sill Nose is a nose for? The name implies it attaches to something else. I don't think I need 1 flat on the sill but I have no clue really. What would the factors be in deciding if the top edge of the sill needs to be flat for the first 1 or not? I'd like as much drainage as possible and as little water sitting on the sill and/or dripping on the siding under the window as possible, which is why I want protruding trim top and bottom. BTW, I contacted Aztek and they got nothing, just that part of the fun of working with molding is putting it together creatively . . . unfortunately you have to do this from the 12' lengths at the home center . . .

- DORA DAWSON (Reading, PA), 03/02/2019

Metal window (or other) with a nailing fin and 1 to 1 1/8 projection... use the 6930. The one you linked to is good when replacing the front subsill nose of a wood sill that has a dado and a step that accepts the 1/4 tongue of the 6933. Those type of wooden sills are kind of 2 piece and the front subsill nose usually rots off first, so it must be a popular item to replace with Azek.

- GRACE GARZA (Lake Charles, LA), 02/27/2019

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