When I put it on I just backfilled it without any screws but I was
working small areas at a time, if its to hold it until you back fill
one tapcon and a washer or some liqued nails should do. Above grade I
painted it. What is Tuff R value, if I remember right the regular
foil faced Polyisocyanurate is 1/2-1R better in insulation value. I
used I think Owens Corning and the TUFF R has fiberglass in it and is
a nightmare to work with, the big glass shards get into your hands and
clothes real easy and are a hurting bad experiance so I wont use or
even touch that stuff anymore. The foilfaced starts at R 7.2 and
settles to about R 6.5. I hate the Tuff R so much I junked the last
sheets from the glass getting into my hands.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.