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Johns Manville R-6, 1-in x 4-ft x 8-ft AP Foil Faced Polyisocyanurate Board Insulation in the Board Insulation department at Lowes.com
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Have a question about GAF EnergyGuard 1 in. x 4 ft. x 8 ft. R-6.1 Polyisocyanurate Insulating Sheathing? - Pg 4 - The Home Depot
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