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Cover Board Helps Prolong Roof Life Expectancy


Johns Manville's ProtectoR HD, is a ½-inch thick, high-density (HD) polyiso cover board with Grade 1 compressive strength — minimum 80 psi up to 110 — and an R-value of 2.5. ProtectoR HD offers resistance to harsh rooftop conditions, including hail, wind uplift, puncture and moisture in a competitive package. ProtectoR HD provides reduced FM 1-90 fastening rates with as few as eight fasteners per 4- by 8-foot board.





Contact FacilitiesNet Editorial Staff »   posted on: 5/31/2019


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