GreenGuard FQ250 Fanfold Underlayment - Reflective Microfiber Used in pairs with spacers

Used in pairs with spacers

aluminum and magnesium components ensures stability and durability without adding unnecessary weight

giving you a clean and healthy home

Activate airflow through the compressed air supply to generate vacuum at the pads

Two lower pockets: 6

GreenGuard FQ250 Fanfold Underlayment - Reflective Microfiber Used in pairs with spacersEconomical Fanfold Underlayment XPS When every penny counts, you can rely on the performance of our most economical fanfold siding underlayment. The 0. 2" Q250 is made of extruded polystyrene foam (XPS). Designed to be used as a leveling board, it adds insulation and moisture protection during the installation of new vinyl siding over old siding. It is configured in fanfolded bundles 4 x 48. It comes with crease fold hinges and a reflective facer on