Structural Insulated Panels

Structural Insulated Panels

Often referred to as “sandwich panels” are composed of two sheets of a plywood-like material called Oriented Strand Board “OSB” separated by a sheet of ridged styrofoam. Glued together they form a super strong building material with exceptional insulating qualities. Panels are available in several thicknesses (4.5”,6.5”, 8.25”, 10.25”, and 12.25”) and widths up to 8 ft, and lengths up to 24 ft. Each of our houses is custom built (not prefabricated). Panels arrive ready to assemble with doors and windows precut. The size and thickness of the panels is determined by how much insulation is desired, and by how much strength is required to meet engineering requirements

Pros

  • Twice the insulating value when compared to standard construction. Not only are the energy bills lower, the heating and cooling equipment can be simpler and less costly.
  • Up to 3X the strength. They withstand earthquakes and tornados incredibly well.
  • SIP walls and roofs have great sound-deadening qualities.
  • Shorter construction time as structure, insulation, and shear strength are achieved in one quick step.
  • SIP roofs lend themselves well to open floor plans and vaulted ceilings.
  • SIPs lend themselves to unusual, creative designs.

Cons

  • A typical SIP house can cost up to 5% more. That said, the savings from lower heating and cooling bills outweigh the increase of the monthly mortgage.
  • Building with SIPs requires a different set of tools and skills. It may be difficult to convince a builder to abandon known methods and adopt new ones. That said, SIP construction is easier to learn than stick-framing.
  • The panels are not available at your local lumberyard, therefore a greater effort is required in planning.
  • SIP homes require an engineer. That said, the hardware and structural lumber. requirements for a SIP home are typically more affordable than a stick framed house.
  • Most SIP roofs require a crane (standard truss roofs also require mechanical means).

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