Configured in fanfolded bundles 4’ x 50’ with cut-n-fold hinges which improves its ability to lay flat.
GreenGuard FQ350 Fanfold Underlayment
Economical fanfold XPS 0.3" thick with reflective facer on one sideGreenGuard Q250 Fanfold Underlayment
Economical fanfold underlayment XPS 0.2" thick with crease-fold hinges
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
