PROPINK® Fanfold Underlayment Board


PROPINK® Fanfold Underlayment Board is a thin extruded polystyrene fanfold board faced on both surfaces with a plastic film facer. PROPINK Fanfold Underlayment Board has an advanced cut folded hinge every 24 inches to provide ease of package assembly and ease of installation at the job site.

PROPINK Fanfold Underlayment Board is engineered to provide resistance to air infiltration and liquid water penetration when used in residential and commercial exterior wall construction.

Product Data/Submittal Sheet



Home Innovation NGBS Green Certified SCS 20 Percent Logo UL Certification for Foamular(3)
To download product documentation, click on the icons above. Documents are in Adobe® PDF format.
Click here to download Adobe® Reader®.
Thickness Width / Length Edge Type
¼” 4’ x 50’ (Folded in 2’ increments) Square
⅜” 4’ x 50’ (Folded in 2’ increments) Square

Other sizes/edge configurations may be available with minimum order.

We recommend PROPINK® Fanfold Underlayment Board for the following applications:

Product Overview