The crack around doors and windows are the main cause of air leakage in most homes. In fact, in many houses, window sashes and doors are grooved to interlock with metal flanges around the frames. If a house lacks this sort of built-in weather stripping, chances are it will easily gets the damage.
Actually, there are some simple tests to determine your weather-stripping needs. On a cool, windy day, feel for air door and window cracks. Another method is to hold a tissue next to the crack to see if it flutters. Or, shine a flashlight along door and window edges from the outside at night while someone inside watches to see if light penetrates.
Once you know your trouble spots, you can select the weather-stripping best suited to the job.
Actually, there are some simple tests to determine your weather-stripping needs. On a cool, windy day, feel for air door and window cracks. Another method is to hold a tissue next to the crack to see if it flutters. Or, shine a flashlight along door and window edges from the outside at night while someone inside watches to see if light penetrates.
Once you know your trouble spots, you can select the weather-stripping best suited to the job.
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