Building Insulation Products→ Laminated EPS Insulation→
Poly Shield® KBR Insulated Sheathing / Roofing Underlayment is primarily used for mobile homes, manufactured homes, warehouses, and agricultural buildings. Poly Shield® KBR is faced on both sides by a metalized polyester laminated to heavy Kraft paper. The laminations make KBR more durable and damage resistant during product storage and installation than plain EPS insulation.
Poly Shield® KBR is recommended for Manufactured Home Roofing Insulation, Warehouses, Agricultural Buildings, and other building insulation applications allowed by pertinent building codes. Install to applicable CFR and/or building codes. We recommend regular Poly Shield® instead of Poly Shield® KBR for residential or inhabited commercial / industrial buildings.
EPS reduces energy costs and offers the highest R-value per dollar of any foam insulation board. Poly Shield® is lightweight and easy to install.
The R-value of Poly Shield® KBR is permanent. Unlike Polyiso or XPS whose blowing agents outgas, EPS R-values do not degrade over decades of use. When combined in a wall or ceiling design facing dead air space, our reflective metalized facer may increase R-value significantly.
Cellofoam EPS is quick drying and does not readily absorb moisture from the air. Its closed-cell structure reduces the absorption and migration of moisture, and the facers surfaces are nearly impervious to moisture. Not a vapor barrier. Thermal and mechanical properties are unaffected by freeze-thaw cycling.
The EPS core of Poly Shield® KBR meets or exceeds ASTM C578 specs, with excellent dimensional stability & compressive strength. When properly installed it does not deteriorate with age, and is resistant to mildew, rot, fungus, and bacteria.
Cellofoam EPS contains no formaldehyde or ozone-depleting CFCs or HCFCs. Poly Shield's EPS core is 100% recyclable and may contain recycled material.
Poly Shield® KBR is available in 4 ft wide boards in lengths from 8 to 16 ft, in thicknesses of 1 to 6 inches, and in ASTM C578 nominal densities of 1.0, 1.25, 1.5, and 2.0 lb/ft3.
This product complies with HUD 24 CFR § 3280.208. The expanded polystyrene (EPS) foam plastic insulation core of Poly Shield® KBR is Underwriters Laboratory listed (UL ER7260). Please consult appropriate building codes.
We’re dedicated to manufacturing products that meet the highest standards of quality and performance. Need to know if Cellofoam’s products are right for your next project? Reach out to our team.
