History
Structural Insulated Panels (SIPs)
The concept of the SIP began at the forest Products Laboratory (Madison Wisconsin) in 1932.
Frank Lloyd Wright used SIPs in some of his homes in the 1930’s and 1940’s.
In 1952 Alden B. Dow, son of the founder of Dow Chemical Company created the first foam core SIP.
By the 1960’s rigid foam insulation became readily available resulting in the production of SIPs as we know them today.
SIPs are typically made with OSB skins. The SIP is then sheeted with drywall on the interior and siding or stucco on the exterior.
Cement Board SIPs have been developed in the past few years decreasing concerns with fire and mold. Cement Board SIPs can
also be used for foundations and frost walls.
NewSIP Panels are the latest advancement in SIPs, addressing fire and mold with the introduction of the MagBoard sheathing.
Expanded Polystyrene (EPS)
Polystyrene was first commercially produced in 1931 by BASF.
In 1937 Polystyrene was introduced to the U.S. market through DOW chemical.
Polystyrene is now produced all over North America in Billets and cut and shaped by the end user.
MagBoardTM (Magnesium based sheathing)
Magnesium based sheathing was first developed in Asia in 1974.
Until recently the product was only distributed domestically in China and exported to Japan, Korea and Singapore.
Over the past four years several companies have been redeveloping the product for the North American market. High purity ingredients,
revised recipes to make the product more pliable and stringent quality control, have resulted in a highly credible product that
serves several purposes.