Wood Damage

Moisture Damage in Buildings

In addition to causing health problems, moisture can damage building materials and components. For example:

• Prolonged damp conditions can lead to the colonization of building materials and HVAC systems by molds, bacteria, wood-decaying molds and insect pests (e.g., termites and carpenter ants).

• Chemical reactions with building materials and components can cause, for example, structural fasteners, wiring, metal roofing and conditioning coils to corrode and flooring or roofing adhesives to fail.

• Water-soluble building materials (e.g., gypsum board) can return to solution.

• Wooden materials can warp, swell or rot.

• Brick or concrete can be damaged during freeze-thaw cycles and by sub-surface salt deposition.

• Paints and varnishes can be damaged.

• The insulating value (R-value) of thermal insulation can be reduced. The following photos show some of the damage that can result from moisture problems in buildings.

This was a Article from the EPA. Follow this link to read more.

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