Roofing Task Force

The design of this study included input from a Roofing Task Force (RTF) of manufacturers, contractors, roofing associations, and other stakeholders. The RTF met several times between 2012 and 2014. Members provided input on the design of the study, the chemicals of concern, and the types of roofing evaluated. The RTF participants recommended roofing types that the study should assess as representative of the most common roofing types for the Northwest region. Fourteen types of roofing materials most commonly installed in the Northwest were assessed. RTF members provided input on data analysis and comments on the draft reports.