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| > | IEQ and Insulation |
Condensation Controls
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In Building Structures
In order to minimize potential condensation problems in attics, floors, and walls, three things need to occur:
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Sufficient ventilation to reduce excessive water vapor build-up within the home. |
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Ventilation of building sections so that excessive water vapor is dissipated to the outdoor air. |
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Use of vapor retarders to limit water vapor transmission into building cavities. A vapor retarder attached to batt or roll insulation decreases the possibility of moisture vapor condensing to water within the structure |
In HVAC Duct Systems
Fiber glass duct liner, wrap and board reduce condensation on duct surfaces, thus reducing the opportunity for microbial growth and amplification as well as other moisture-related building damage. Condensation will form on any duct surface with a temperature equal to, or lower than, the dew point temperature. The moisture may remain in place or drip, causing moisture damage and creating a potential for microbial contamination. Fiber glass duct liner, duct wrap, and duct board reduce the opportunity for condensation, thus eliminating the critical precondition for microbial growth.
Related Literature:
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Publication Title
(Click for full description, related publications and order form for printed versions) |
Pub No.
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Free Downloads
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| Facts #26: Facts About Moisture and Fiber Glass Metal Building Insulation | MB306 |  PDF (400 K) |
| Facts #70 - Fiber Glass Building Insulation Products: The Facts About Mold Growth | BI483 | |
| Facts #52: Glass Fiber Air Transmission Systems: Preventing Moisture Accumulation in Ducts | AH107 | |
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