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GreenGuard P1450 Fanfold Underlayment

Performance Choice ¼” Thick Closed-cell Extruded Polystyrene

Configured in fanfolded bundles 4’ x 50’ with cut-n-fold hinges which improves its ability to lay flat.

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Kingspan Insulation plays a key role in KSU's impressive new student center

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Economical fanfold XPS 0.2" thick with reflective facer on one side

GreenGuard FQ250 Fanfold Underlayment

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

GreenGuard FQ350 Fanfold Underlayment

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

GreenGuard Q250 Fanfold Underlayment

Economical fanfold underlayment XPS 0.2" thick with crease-fold hinges
Kingspan GreenGuard P1450 Fanfold Underlayment on a transparent background.

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