Emissions data collected following spray polyurethane foam application has been used to estimate the time required for workers to safely re-enter and work without respiratory protection.
The determination of trade worker re-entry time following the application of spray polyurethane foam (SPF) in residential and commercial buildings has traditionally been estimated by SPF manufacturers.
Markets in 59 of the approximately 350 metro areas nationwide returned to or exceeded their last normal levels of economic and housing activity in the third quarter of 2014.