JL Industries Introduces the New Diamond Series Roof Hatch
BLOOMINGTON, Minn. — JL Industries is now offering a redesigned line of steel and aluminum roof hatches providing higher insulation value, easier installation and improved cover operation.
The new Diamond Series is designed to reduce energy costs with R-6 polyisocyanurate insulation in both curb and cover – exceeding IECC requirements of R-5 for curbs.