Building material emissions are the release of chemical compounds from construction and finishing materials into indoor environments. These emissions include volatile organic compounds, formaldehyde, and other chemicals used in manufacturing, adhesives, and protective coatings. Material emissions directly affect indoor air quality and occupant health from installation through the material’s lifespan.
Types and Sources
Common emission sources include insulation, drywall, flooring, paints, sealants, and adhesives. Formaldehyde emissions from wood products can exceed 0.1 ppm. VOC emissions from paints and coatings typically peak within one week but may continue for months. Building material emissions vary significantly by manufacturer and product formulation, making source selection critical.
Control and Standards
LEED certification and GREENGUARD Gold standards restrict emissions levels. Specifying low-emission materials reduces baseline indoor pollutant concentrations. Proper ventilation during and after construction, combined with 48-72 hour bake-out periods with mechanical ventilation, accelerates compound removal. Material testing and third-party certifications help identify lower-emission alternatives.