1/4" x 4' x 50' square edge, Owens Corning Foamular R-1 Extruded Fanfold Underlayment Insulation To Place OrderCall: 906-374-0097 Visit: Baker Building Supply, LLC N7008 County Road 577 - Suite B Ingalls, MI 49848Fanfold InsulationQuantity*Features Saves energy and resists moisture with a limited lifetime warranty Perforated, to allow excess moisture to escape Provides a flat nailing surface for fast siding installation Compact fanfold design with folded hinges at 24" intervals for easy application at job site Square Edge
