NEXGEN MgO Mold and Mildew Resistance

Mold lives off of any organic matter and loves a warm, humid environment. Mold and mildew are known to cause respiratory concerns, common allergic reaction symptoms, nervous-system disorders, and depression. No matter who you are, or where you live, everyone needs to reduce the amount of mold and mildew in the air they are breathing in.

MgO Board contains no organic materials and therefore is resistant to the growth of these organisms.

Mold Inspector

Key Mold Resistance Facts

MgO is Inorganic

NEXGEN MgO board is completely composed of inorganic materials. This means there is no food source for mold or mildew.

MgO is Water Resistant

Since MgO boards are water resistant they do not get/stay wet that in turn encourages the growth of mold and mildew.

Building Green and Safe

Sustainability and renewable energy are excellent goals, but mold resistance is important too. However, green buildings can be prone to moisture and mold problems. Build green and healthy with NEXGEN MgO.

Case Study Summary


You want to construct healthy and safe buildings that are mold and mildew free.  


NEXGEN MgO based boards are mold and mildew resistant and are ideal for interior and exterior sheathing, floor and roof underlayment, and tile backer board. 


Buildings that use NEXGEN MgO boards are more resistant to and will have significantly fewer mold and mildew problems and provide a much healthier environment for everyone. 


Review all NEXGEN Product Testing Results and Certifications

Build 3.0

Get our free ebook on how to design and construct High Performance buildings with NEXGEN MgO products

Get our free ebook on how you can provide your residential and commercial customers with safe, high-efficiency, eco-friendly, and disaster resistant High Performance buildings while improving your profit margins at the same time. 

Need clarification?

What is Mold and Mildew Resistance?

Mold spores live in the air we breathe. They're always there and there's no way to get rid of them. But we don't notice them until they settle on a surface and start to grow. And all it takes for spores to transform into visible mold is oxygen, moisture, and an organic food source. Drywall and wood are organic materials that get wet and provide mold a food source.  NEXGEN MgO is water/moisture resistant and is composed of inorganic materials that provide no food source.

What standards are used for mold?

There are several building standards that apply to mold and mildew resistance. ASTM C1185 is requirements for Moisture Content and ASTM C1186 is requirements for Moisture Movement and Water Absorption. ASTM D3273 is requirements for Resistance to Growth of Mold and Mildew. 

Why are MgO based products resistant to mold and mildew?

NEXGEN MgO board is water/moisture resistant and is composed of inorganic materials that provide no food source, and exceeds ASTM D3273 requirements for Resistance to Growth of Mold and Mildew. 

Learn More