What Is Fanfold Used For

Fanfold insulation is an extruded polystyrene foam insulation which is designed to be applied to the exterior walls of homes, between sheathing (or pre-existing sidings) and usually vinyl siding. Its purpose is to provide thermal protection and to form a second barrier between the elements and the framing.

What is fanfold on a house?

FANFOLD foam residing board is a thin perforated, extruded polystyrene foam board faced on one side with a plastic film facer and combines proven XPS foam technology with a unique design to enhance the application of new or replacement siding.

What is fan fold insulation?

Exterior fanfold insulation is the foam-type of insulation that is applied between your home’s exterior and the siding, and it offers some protection from moisture, in addition to creating a layer of thermal insulation.

Sarah Jenkins

Sarah Jenkins

Senior Technology Editor & AI Specialist

Sarah Jenkins is a veteran tech journalist with over 12 years of experience covering artificial intelligence, mobile innovations, and digital ethics. Her insights have appeared in leading technology publications worldwide.

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