Illinois sun porch moisture question via /r/DIY

Illinois sun porch moisture question

Working on a materials list to reframe this porch. Intend to rebuild it exactly as it is and paint it. What sort of moisture barrier do I need under the PT sill? Should the sill be angled to drain water (by water i mean rain)? Should I flash/wrap the sill? The windows will be open mostly in the summer so it will get wet (from rain) inside occasionally.

Thanks for anyone that takes the time to answer this. Been really struggling to find this information. Only thing I can compare it to is a sill plate on foundation but this is essentially outside.

Submitted April 28, 2021 at 01:06PM by scuricide
via reddit

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