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Question DetailsAsked on 9/29/2012

Mildew on window sill

How do I clean and retard mildew on a window sill. I have removed the sill and found mildew underneath.

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2 Answers

0
Votes

Moisture may be "seeping " in from the outside, have a window Pro take a look. Other windows may have the same issue.

Where there is mildew there is moisture.

Source: http://www.bayareacool.com

Answered 6 years ago by BayAreaAC

0
Votes

bayarea is right. There may be problems with other windows as well. Howeever, if you cannot afford a professional at this point, you can:
remove the sills,
treat with bleach,
allow to dry,
spray with KILZ,
reinstall the sills,
caulk the entire window frame and sill with a silicone based caulking inside and especially outside

That should buy you another year or two depending on the solidity of your sills and framing.

Answered 6 years ago by Vern




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