Siding Underlayment

Foam Insulation Boards

Builders installing Pactiv Green Guard foam siding underlayment

Foam insulation boards are designed to maximize energy efficiency in your home, resist water absorption, and prevent mold growth. When remodeling, they are often applied directly over existing siding for a smooth, protected surface.

Fan-Fold Insulation

Dow fan-fold siding underlayment

Fan-fold insulation carries a similar function to foam insulation boards, but is easier to handle and install. Lengths up to 50' can be fan-folded into a convenient, managable bundle.

Tyvek® housewrap

Builder installing fiber cement siding over Tyvek HomeWrap housewrap

An average home has more than 1/2 mile of cracks and crevices in the wall cavity! With an avg. 8 mph wind, your home could lose up to 30% installed R-value.

DuPont™ Tyvek® Weatherization Systems products can help:

  • Reduce nasty drafts
  • Make insulation work more effectively
  • Cut energy bills
  • Prevent mold, mildew and rot


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