SWISCO - The Replacement Hardware Authority

buble seal double hung

A professional from Maryland says:
If installed at the jambs, will the 58-053 allow double hung windows to remain operable? What is the expected lifespan of this product?
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Dave from SWISCO responded:
If you are thinking of installing this along the jamb vertically so the double hung sash will slide up and down against it, I don't think this is what you want. Normally on the side jambs they use a wool pile weather stripping. The bubble seal is a rubber type weather strip and will cause dragging against the sash and most likely will wear out.
A professional from maryland says:
Thanks for the reply. We need a 10+ year system. The windows are very large. In addition, the laboratory has strict climate control range. Can you suggest a more robust system than wool pile? We also considered spring bronze.
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Dave from SWISCO responded:
It is hard to suggest what type of weather stripping without actually seeing the job site. Maybe your local hardware store can suggest what to use for your application.
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