New coverboard from Atlas Roofing Corporation provides an additional option from Atlas to meet UL Class A fire rating requirements when used over combustible wood roof decks.
Carlisle Construction Materials hosted Illinois State Senator Don Harmon and a team from his office on April 24, 2019, for a tour of its Franklin Park, Ill., Polyisocyanurate insulation manufacturing facility.
With a closed cell polyiso foam core and inorganic coated glass facers, this high-density cover board from Johns Manville has a Grade 1 compressive strength and an R-value of 2.5.