Structural Insulated Panels (SIPs)- a building
material that consists of panels made from a thick
layer of foam (polystyrene or polyurethane)
sandwiched between two layers of Oriented Strand
Board (OSB).

Structural panels offer very effective insulating
qualities, rapid installation, and consistent quality
(minimizing waste). The use of OSB or waferboard
for facings is considered a positive use of wood
resources.

In addition, less wood is wasted at the construction
site than stick built homes making structural
insulated panels favorable materials to "green
building" organizations.
What are Structural Insulated Panels?

Midwestern U.S. SIPS Manufacturers

Extreme Panel Technologies
Extreme Panels of Cottonwood, MN has been
manufacturing SIPs since 1992.  Nice site with
a gallery of pictures from projects using their
products.

Lamit Industries
Columbus, Ohio SIPs manufacturer that
produces over 2 million square feet per year.  
These panels are strong, energy efficient and
cost effective.

PorterSIPs
Structural Insulated Panels manufactured in
Holland, Michigan

Thermocore
Mooresville, Indiana SIPs manufacturing
company.  Thermocore works with
homeowners, builders, and architects
throughout the U.S. and Europe
.
Western US SIPs Manufacturers

Southern US SIPS Manufacturers

Northeastern US SIPS Manufacturers
Structural Insulated Panels-Manufacturers
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Cleveland SIPs
Manufactures stronger structural insulated panels
using galvanized steel and EPS foam.  100%
Recyclable.  Typical R values of R-30 for walls,
R-50 for roofs.