Kingspan Greenguard 1″x4’x8′: Type IV Wall System barrier


  • Protects against air and moisture infiltration.
  • Water–resistive barrier.
  • Qualified Air Barrier Material (select building wraps).
  • Woven and non–woven constructions.
  • Reduces the potential for rot, mold, and mildew.

Product Data Sheet

Safety Data Sheet

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Kingspan Greenguard 1″x4’x8′: Type IV Wall System barrier

Kingspan GreenGuard air barrier building wraps and drainage mats provide advanced moisture management with excellent water–resistive barrier properties and drainage channel features on certain products.Questions? Contact us

The complete approach of using a combination of the right building wrap, flashing and tape keeps water out of the wall system, provides an air barrier, and even allows moisture vapor to escape.

GreenGuard Type IV 25 psi Insulation Board is an ideal exterior insulation, meeting your needs for multiple applications. Its extruded polystyrene (XPS) construction provides superior moisture resistance. And since it does not absorb moisture, it retains its insulating properties over time. With an R-Value of 5.0 per inch of thickness, the board increases the energy efficiency of your structures. Plus it’s lightweight, easy to handle, and easy to cut with a knife. Use this insulation for below slab, cavity wall, and foundation applications. It meets and exceeds all Type IV and Type X specifications.


Intertek CCRR 1021;
Intertek CCRR 1022;
CA BEARHFTI Lic. No. T 1506;
Florida Product Approval – No. FL14164-R;
CCMC 12722-L;
MN Dept. of Energy – Chapter 7640;
FM Approvals – see RoofNav Roof System Listings; Miami-Dade County, FL;
UL – See Classification Certificate A183.

Handling & Storage

When stored outdoors, all product should be protected from exposure to direct sunlight using the original packaging or an opaque, light–colored tarp. Material that has been unwrapped should be covered or rewrapped.

WARNING: This product is combustible. A protective barrier or thermal barrier is required as specified in the appropriate building code. Protect it from exposure to open flame or other ignition sources during shipping, storage and installation.

Kingspan GreenGuard® Type IV XPS Cavity Board is made of synthetic materials that are generally recognized as not providing a food source for insects, fungus, mold, or mildew. It should always be properly installed and stored.

Kingspan GreenGuard Type IV XPS Cavity Board is HCFC free. This product should not be used as an exposed interior surface
in buildings where people can be expected to be present. An approved fire protection barrier, such as 1⁄2” gypsum wallboard or equivalent, should be applied between this product and the interior of such buildings. Fire and building codes should be followed.

All assemblies should be evaluated for effectiveness and location of vapor retarders to avoid condensation and subsequent damage to structures (ASHRAE Handbook of Fundamentals). Since
foam sheathings are non-structural, they must be installed over adequately braced framing in accordance with local building codes.

WARNING: Do not stand on or otherwise support your weight on this product unless it is fully supported by a load bearing surface.

Weight 80 lbs
Dimensions 243.84 × 121.92 × 5.08 in