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Draft Diagnosis
Use observation and safe checks to map likely air-leak paths.
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Choose the situation closest to yours, then use the safety boundaries and reviewed guidance to decide the next step.
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Weatherstrip Materials
Match compression, sweep, film, and caulk products to movement and exposure.
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Door Sealing
Address ordinary perimeter and threshold gaps without altering life-safety hardware.
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Window Sealing
Reduce common operable-window gaps with reversible, low-risk methods.
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Condensation & Moisture
Avoid treating moisture symptoms as simple air leaks.
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Combustion Safety
Stop sealing work when appliances, vents, or pressure risks need professional evaluation.
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