Source control is one of the control measures recommended by the Sheet Metal and Air Conditioning National Contractors Association (SMACNA) for the Indoor Environmental Quality Credit, Construction Indoor Air Quality Management Plan. Source control means minimizing the generation and emission of indoor air pollutants from the construction activities and materials. Some examples of source control are1:
• Using low-emitting adhesives, sealants, paints, coatings, and flooring systems that comply with the VOC limits of the applicable LEED credit.
• Storing absorptive materials in a protected area and covering them with plastic sheeting to prevent moisture and mold growth.
• Scheduling the installation of finish materials after the completion of wet and dusty work, such as concrete pouring, drywall sanding, and painting.
• Isolating work areas where high levels of contaminants are generated or used, such as welding, cutting, grinding, and solvent cleaning, and providing adequate ventilation and exhaust.
• Prohibiting smoking, eating, and drinking in the work areas, and providing designated areas for these activities.
[References:, •Construction indoor air quality management plan | U.S. Green Building Council1, ]
