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Kingspan GreenGuard P1450 Fanfold Underlayment

Closed-cell Extruded Polystyrene (XPS) Fanfold Underlayment

Cut-n-fold hinges improves ability to lay flat. It is lightweight, easy to cut, and install.

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Economical fanfold XPS 0.3" thick with reflective facer on one side

GreenGuard FQ350 Fanfold Underlayment

Economical fanfold XPS 0.3" thick with reflective facer on one side
Economical fanfold underlayment XPS 0.3" thick with crease-fold hinges
Economical fanfold XPS 0.2" thick with reflective facer on one side

GreenGuard Q350 Fanfold Underlayment

Economical fanfold underlayment XPS 0.3" thick with crease-fold hinges

GreenGuard FQ250 Fanfold Underlayment

Economical fanfold XPS 0.2" thick with reflective facer on one side
Kingspan GreenGuard P1450 fanfold underlayment on a transparent background
Kingspan GreenGuard P1450

GreenGuard P1450 Fanfold Underlayment

Kingspan's performance choice at ¼” (0.25") thick closed-cell extruded polystyrene (XPS) fanfold for use in replacement siding operations; designed to be used as a “leveling board”, adding insulation and moisture protection in the installation of new vinyl siding over old siding. It is configured in fanfolded bundles 4’ x 50’ with crease-fold hinges. It is lightweight and easy to cut and install.

Product Highlights

  • Use as a "leveling board"

  • Cuts clean and easy with no loose foam beads

  • Perforated to allow moisture vapor to escape

  • Explore GreenGuard