• Ancient use: A mortar component & soil bricks stabilizer, magnesia has been identified in the Great Wall of China & other ancient sites. Roman cement contained high levels of magnesia.
• Portland cement replaced magnesia in the 1900s when energy was cheap & mold infection was poorly understood.
• However, some building projects continued to use magnesia. The Brooklyn Bridge base consists of a mixture of calcium oxide & magnesia cement.
• Today, due to its fire resistance & safety ratings, New York & New Jersey were early adopters of magnesia cement board.
• Florida has adopted magnesia panel for mold & mildew resistance.
• MgO SIPs are hurricane & impact approved in Miami-Dade County.
• In Taipei, Taiwan, magnesia board can be found on all 101 stories of Taipei 101, on of the tallest buildings in the world. Magnesia sheeting was used on the inside and outside of all the walls, fireproofing beams & as the sub-floor sheathing.
• Today, magnesia cement boards are widely used in Asia as a primary construction material, and were designated as the ‘official’ construction specified material of the Beijing 2008 Summer Olympic Games.
• Magnesia cement is manufactured around the world, primarily near major magnesia deposits in China, Europe, and Canada.
• Famed architect Frank Lloyd Wright used SIPs in some of his affordable Usonian houses build throughout the 1930’s and 1940’s.
• SIPs took a major leap in technology when a Wright student, Alden Dow of Dow Chemical Co., created the 1st foam-core SIP in 1952.
• Research and testing of the technology was done primarily by Forest Products Laboratory in Madison, Wisconsin as part of a U.S. Forest Service attempt to conserve forest resources.
• In the 1990’s SIPs saw the development of advanced computer aided manufacturing (CAM) technology. CAD to CAM technology has streamlined the SIP manufacturing process, bringing further labor savings to builders.
• Factory-built means high quality control and fast, simple, and quality building erection.
• Advances in computer aided design and manufacturing produce SIPs with amazing accuracy to deliver flat, straight, & true walls. Waste reduction is unequaled in conventional construction.
• Though sheathing board can be sheet metal, plywood, cement, or oriented strand board (OSB), only magnesium oxide board (MgO) offers a fireproof, mould-resistant, durable, low-processing product.
• SIPs share many of the same structural properities as an I-beam/column. The rigid insulation core acts as a web, while the sheathing fulfills the function of the flanges.
• The design capabilities, exceptional strength and energy saving insulation make SIPs the 21st Century building material for high performance buildings.