Return to the Windows Forum | Post a Follow-Up

Exterior Window Trim: Do I need a sill?

Posted by reneophyte (My Page) on
Mon, Sep 13, 10 at 11:25

Trying to keep it simple, but also want to do it right...

I'm trimming out mostly awning Windows (Marvin Integrity line). I'm going for a 'modern craftsman' look. Will be using Azek, 1x5 for the top, 1x4 for the sides. All butt joints, with the top piece ~3/4" proud of the side trim pieces.

Seems standard to trim the bottom of a window with a sill that is comprised of two 1x pieces glued together, than milled for a 10-degree bevel.

My question is: I have a fairly large roof overhang, and the windows themselves already have a sill for weeping away water. a 1x trim piece (3/4" true measurement) will sit almost flush with the exterior of the window unit.

Do I need a sill? It'd be great to just install another piece of 1x4 on the bottom, butt-jointed to the side pieces.

Thanks very much for your advice!

Follow-Up Postings:

RE: Exterior Window Trim: Do I need a sill?

Nothing wrong with that it's done all the time.

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Windows Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here