FANFOLD INSULATION 1/4" x 48" x 50"

Fanfold insulation board is a type of rigid foam insulation that is folded into an accordion style bundle for easy transport and rapid installation as continuous insulation for exterior or interior walls and roofs. It provides thermal resistance and helps reduce air infiltration. 

4 ft width and 50 ft length, covering about 200 sq ft per bundle.

Exterior Walls: Used as an insulative backer board for new or replacement siding to add R-value and provide a smooth nailing surface.
Roofs: Suitable as a lightweight underlayment or cover board for low-slope commercial and industrial applications using mechanically fastened membranes like TPO, PVC, EPDM, and CSPE.
Interior and Basement Walls: Can be used to insulate interior or basement walls.
Other Uses: Also used as a general-purpose protection board or below-grade waterproofing layer protection board.