Here is a fairly good article on the subjecct.
"Radiant barrier spray-on paint is essentially liquid foil. While not all radiant barrier paints are the same, basically they are made by grinding pure ... read more
When you see the wasps around, look at the exterior of the chimney and possibly from a ladder.
What you may see is that they are not coming down into the chimney through the top or chimney termi ... read more