National Gypsum's Gold Bond® gypsum board product line, ProForm® ready-mixed joint compounds and PermaBase® cement backer board have earned GREENGUARD Indoor Air Quality Certified® status and GREENGUARD Children & Schools^SM Certification. These are the industry's most stringent indoor air quality standards.

The GREENGUARD Environmental Institute, an independent, third-party program, has been certifying products for low chemical emissions since 2001.

To earn the certifications, National Gypsum products passed rigorous sample testing and a review of its manufacturing processes. The certifications are important as concern over indoor air quality grows. Research shows indoor air is two-to-five times more polluted than outside air.