"Suburban installed windows three years ago and siding and doors last summer and we're very satisfied with the work they did. They are very professional, prompt and dependable. We obviously are very h... » more
- Steve and Vicki Engler of Bettendorf, Iowa


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Moisture Vapor Transmission Rate

The rate at which moisture diffuses through a substance. Generally given in the following units: grams/meters2 x 24 hours. The lower the MVT rate, the greater the resistance of the sealant to moisture penetration.

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