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How Does Moisture Damage Your Roof?


Josh Knese • Jan 06, 2022

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Your roof is designed to prevent moisture from entering your home. As a homeowner, understanding the danger of moisture to your roof is important. Moisture can pass through the exterior roofing materials of your home and become trapped in the attic and interior walls of your home. Overly moist roofs can cause a wide range of serious housing problems.

How Does Moisture Damage Your Roof?

Roof Damage

Moisture can damage many different types of materials that are often present in a household, including those located in your home. It has been discovered that water can be absorbed into gaps between granular materials, such as drywall, during the manufacturing process, resulting in a reduction in the overall strength of the material. It is for this reason that ceiling drywall begins to sag as soon as it becomes soaked with water.


Roofing issues are also associated with storm damage. This is when roofing material can be easily damaged by moisture. Rotting wood can be a major problem, especially if left undiscovered for an extended period of time. Metal connectors and fasteners used to assemble roof framing are susceptible to corrosion. There is a chance that roofs could leak into attics or the inside of buildings, so there may not be any obvious signs of leaking at all.

Health Hazard

Also, think about the health of you and your family. Mold is caused by fungi, which become active when there is about 20% moisture in the air. Mold fungus grows by releasing microscopic spores into the air in your home, which can cause health problems if inhaled. People who are healthy are usually able to deal with a lot of mold spores in the air.

Regular professional roof inspections can prevent emergency roof repair. Exterior Building Solutions team of experts provides seamless and top-notch roofing solutions. Call us at (314) 470-8783, or fill out our contact form to schedule an appointment. We serve clients in Chesterfield and St. Louis, MO.

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