Improving the indoor air quality of buildings is a large part of the sustainability movement and as we continue to address energy efficiency through air tightness in assemblies, the issue of indoor air quality will continue to be a focal point.
People spend about 90 percent of their time indoors so the quality of the air around them, where they live, work and play is very important. Educational and health care environments draw even greater scrutiny due to the sensitivities of the young and those with potential respiratory issues.Volatile organic compounds (VOCs), formaldehyde and other aldehydes, are seen as common compromises to air quality. VOCs are all around us, come from many sources, and often move freely in and out of building components. People, themselves, carry VOCs into buildings through the wearing of permanent-press clothing and exposure to secondhand smoke.
Fortunately, there is a first-of-its-kind wallboard, called AirRenew™. AirRenew is designed to clean the air and remove a particular family of VOCs by drawing them into the board, trapping them, and utilizing a patented technology to break down these VOCs into inert compounds. Those inert compounds will stay in the gypsum board for the service life of the board. These inert compounds created inside the core are not harmful and the original VOCs will never be released back into the air.
This revolutionary gypsum board, which will be available soon, will have a positive impact on public buildings, especially when qualifying for Leadership in Energy and Environmental Design (LEED ™) or other green rating program certifications. Indoor Air Quality (IAQ) strategies incorporating AirRenew meet the intent of the sustainability Triple Bottom Line of economic prosperity, social responsibility and environmental stewardship.
AirRenew has undergone a battery of independent testing. Preliminary tests show that AirRenew maintains its performance when painted with a permeable paint. Finishing that results in an impermeable surface, such as vinyl wallcoverings, would reduce the porosity of the board surface and are not recommended. Permeable paints currently serve over 70 percent of the interior wall coatings market. Since most sustainable and LEED models are moving away from solvent based coatings, this is not perceived as a limitation.
LEED for Schools Indoor Environmental Quality (IEQ) Credit 3.2 sets a maximum concentration of 27 parts per billion for formaldehyde, however many studies have shown that this is often exceeded. The mold resistance performance of AirRenew also contributes to LEED for Schools IEQ Credit 10 for mold prevention. The GREENGUARD® Environmental Institute has many resources documenting the issues of indoor air quality and the need for reducing VOCs especially in schools.
It has been exciting to work on a product that provides a real solution to an issue that has long needed a champion product.