WEST TRENTON, NJ – The originators of nailbase roof insulation have received Factory Mutual® approval for using its “green” nailbase roof insulation, N.C.F.R.® Thermasote®, on steel roof decks. The first nailbase roof insulation, Thermasote, was developed seven decades ago by America’s leading green building manufacturer, Homasote Company. Now, N.C.F.R. Thermasote — a 4’ x 8’…