Which type of drywall should not be used in damp areas?

Standard drywall is not suitable for use in damp areas due to its susceptibility to moisture damage. Unlike moisture-resistant drywall, which is specifically designed to withstand humidity and moisture exposure, standard drywall can absorb water, leading to issues such as mold growth, warping, and deterioration of the material.

Moisture-resistant drywall, often referred to by its trade name "green board," and fire-resistant drywall have properties that either help mitigate moisture impact or enhance fire safety, respectively. Green board has a special coating that makes it more resistant to moisture compared to standard drywall, allowing it to be used in areas like bathrooms and kitchens where humidity levels are higher.

By contrast, using standard drywall in these environments can lead to costly repairs and a compromised structural integrity, making it imperative to select the appropriate type of drywall that meets the specific needs of the space.