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About SIP Panels (SIPs)

Structural Insulated Panels for New Home and Commercial Building Construction

Structural Insulated Panels are not a new concept; they have been around since the 1950’s. Alden B. Dow, son of the founder of Dow Chemical Company developed and used the first rigid foam core panels in residential construction. Since then there have been numerous advances in the production of structural insulated panels through the availability of rigid foam products, and the creation of computer aided manufacturing and computerized architectural drawings. These technological advances have lead to a superior product that provides:

  • Superior Quality
  • Superior Strength
  • Superior Insulation
  • Lower Energy Bills
  • Lower Labor Cost
  • Environmentally Friendly
  • Easy of Construction
  • Meets or Exceeds Building Code Requirements

Structural insulated panels are manufactured using two sheets of 7/16” OSB (oriented strand board). The OSB is structurally laminated and pressure-cured to a rigid core of EPS (expanded polystyrene) foam insulation. Structural insulated panels are available in a wide range of sizes and thickness. Standard panel size is 4’ x 8’ by 6-1/2” thick and weigh approximately 125lbs. Panels are available up to dimensions of 8’ x 24’ and thickness ranging from 4-1/2” up to 12-1/4”. Structural insulated panels can be pre-cut to exact dimensions at the factory to make installation easier and faster. Pre-cut panels include cutting all panels to size along with window and door openings.

SIP Panels- Stronger, Straighter, and Energy Efficient Construction

Structural insulated panels have proven to be a better alternative to conventional construction methods. SIP panels have become widely used in residential and commercial construction to provide a stronger, more energy efficient, and environmentally friendly building. The design of structural insulated panels offers many advantages for building the walls and roofs in your construction project. The solid EPS rigid foam core laminated to the OSB skins creates the same web and flange principle as in an I-Beam, which provides the SIP panel with outstanding structural strength. The structural strength provide by the “I-beam” SIP panels easily handles high axial, shear, wind, and snow loads. Our SIP homes and commercial buildings will withstand the forces of nature in high wind, heavy snow, and seismic areas. SIP panel construction is in code compliance with BOCA, SBCCI, CABO, UBC, IRC, and IBC building authorities. NER, ESR, and ICBO reports are available for your review.


A solid rigid EPS foam core of insulation is a major advantage of structural insulated panels over conventional framing. SIP panels provide a continuous air barrier with minimum thermal breaks resulting in an “air tight” building with excellent thermal performance.

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