When I worked on ours, we had previously had a company spray additional insulation on top of the rolled stuff, and I did not wear a mask. Coughed and hacked for several days. Attic fans are not a fun project.
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Mike and Lorraine
2002 3655 FL, 2005 3650RK
2010 3665RE, 2015 3910FB
F350 crew cab dually 6.7
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