Air leakage from windows turns out to be caused by cutting corners on polyurethane foam
Ask: Mr. ZhangThe windows in my home were installed four years ago. They were fine for the first two years and there were no problems, but they started to leak a little bit last winter. Now that we ha…
Air leakage from windows turns out to be caused by cutting corners on polyurethane foam
Ask: Mr. ZhangThe windows in my home were installed four years ago. They were fine for the first two years and there were no problems, but they started to leak a little bit last winter. Now that we ha…
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