Install mold-resistant materials in bathrooms and kitchens

Rationale: Installing materials that prevent moisture buildup and mold growth lowers the risk of associated indoor air quality issues for occupants, contributing to a reduced risk of conditions such as asthma, allergic reactions, skin and respiratory infections, and fatigue.

Requirements

Demonstrate compliance with the below:

Mold-Resistant Materials (Full Credit):

Demonstrate compliance with all of the following requirements:

1. Install mold-resistant materials in all kitchens and bathrooms that meet one of the below specifications:

• are water-resistant and prevent mold, such as fiberglass-faced drywall, mold-resistant drywall tape, tile, ceramic, terrazzo, or stained concrete
• are rated "resistant" or "highly resistant" according to UL 2824
• meet the ASTM D 3273 standard.

2. Install qualifying mold-resistant materials in all kitchens of dwelling units in all of the following areas:

• under sinks, including cabinetry when applicable
• behind sinks
• behind dishwashers
• floors.

3. Install qualifying mold-resistant materials in all bathrooms of dwelling units in all of the following areas:

• under sinks, including cabinetry when applicable 
• behind sinks
• on the walls around bathtubs extending to the ceiling
• on the walls around showers extending to the ceiling.

Compliance Documentation

Types of compliance documentation required:

• Annotated design drawings
• Annotated plans