Posted Feb 4, 2021, 12:16 AM
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Registered User
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Join Date: Jul 2001
Location: Vancouver
Posts: 41,728
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I'm also thinking that they could be easily damaged during window washing (probably more than vertical louvres since they create a step or barrier that could be impacted).
I expected aluminum louvres, if any.
Maybe aluminum ones would have been more likely to become roosts, than the glass?
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