Engineering360: "Purdue paint earns Guinness World designation as whitest ever"

https://www.labdepotinc.com/p-27171-barium-sulfate-usp?utm_source=google&utm_medium=cpc&utm_campaign=smart-shopping&gclid=CjwKCAjwkvWKBhB4EiwA-GHjFsBSvCWM0yGrx6GQaiH4WnxvoSDFb_krMJemw2qVVn_b9llhpwANlRoCJe8QAvD_BwE

There should be some consideration of dropping roof temperatures below dew point and creating a moisture problem, followed closely by a mold/mildew problem, followed closely by an insect problem, followed closely by a humongous repair bill problem....jus sayin'

Current temperature 78°F

Current humidity 87%

Current dewpoint 74°

http://www.dpcalc.org/