Foam-Control™ EPS Type I - WSG®

Preferred component for EIFS.

Foam-Control EPS WSG (Wall Specification Grade) is the preferred insulation and architectural shape component for Exterior Insulation and Finish Systems (EIFS).

Complies with ASTM Standards.

Foam-Control EPS Type I - WSG meets the following standards:

  • ASTM E2430, "Standard Specification for Expanded Polystyrene (EPS) Thermal Insulation Boards For Use in Exterior Insulation and Finish Systems (EIFS)"
  • ASTM C578, "Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation"

Foam-Control EPS with Perform Guard.

One of the most destructive forces anywhere is termites. Foam-Control EPS with Perform Guard® is an important component in preventing this problem. It's made by a patented process using a borate mineral that is a natural deterrent to termites. This mineral is incorporated into the insulation during the manufacturing process. It is registered with the Environmental Protection Agency (EPA) for this application. Foam-Control EPS with Perform Guard has been thoroughly tested, is safe for han­dling, and non-corrosive. And termites hate it.

Proven to meet, or exceed, building codes.

Foam-Control EPS is manufactured to Quality Control Program standards monitored by Underwriters Laboratories Inc. and recognized by national building codes. Foam-Control EPS manufacturers offer product warranties that ensure thermal performance, physical proper­ties, and termite resistance. Foam-Control EPS with Perform Guard has been evaluated for termite resistance by the ICC ES and meets ICC ES EG239 requirements. Please see ICC ES ESR-1006. Foam-Control EPS can stand up to all industry tests- and has. No other EPS can say that.

Foam-Control EPS Type I - WSG means control, not compromise.

Foam-Control EPS Insulations are engineered to give you the greatest possible control for your EIFS application; from design and timelines, to materials and costs, and ultimately control over your results. The advantages to using Foam-Control EPS:

  • State-of-the-art insulation and energy efficiency
  • 20 year warranted stable R-value: no thermal drift
  • Proven performance to withstand constant outdoor temperature changes
  • Breathable - Moisture vapor can pass through reducing risk of moisture damage to the wall
  • Contains no CFC, HCFC, or HFC blowing agents
  • Excellent surface bonding
  • EPS with Perform Guard protects against termites

Foam-Control EPS makes everything more efficient.

Foam-Control EPS is compatible with various EIFS coating types.

  • Polymer Modified (PM) systems
  • Polymer Base (PB) systems
  • Cementitious systems

Architectural Shapes Expand Design Possibilities.
Our advanced fabricating technology and experience allows special shapes to be produced quickly and economically. Cornices, arches, columns, keystones, cornerstones, special mold­ings, and decorative accents are but a few examples that are available.

Ready to take control? Start here.

If you're starting to wonder how Foam-Control EPS can contribute to your next project, here's how to find out: Just contact your nearest Foam-Control EPS manufacturer. They'll be happy to give you a design consultation, information about Foam-Control EPS products, pricing, and the answers to all your questions. Contact a sales rep and download Foam-Control EPS documentation at