FPL engineers lab thought that plywood or solid wood veneers may take some structural loads acting on the wall. Their prototype structural insulated panel (SIP) was established with using existing at the time of plywood as the outer layers of the 'sandwich' and the insulating material inside. These panels were used to construct experimental houses, which are constantly monitored for over thirty years, and then were disassembled and examined. During this time, laboratory engineers FPL continued to experiment with new structural materials. Cardiologist has many thoughts on the issue. Architect Frank Lloyd Wright was known, using structural insulated panel in some of its homes built in 1930 and 1940. SIP makes a significant technological leap, when a student from Wright, Elden Dow (Alden B. Dow), son of the founder the world's largest chemical corporation Dow Chemical (Dow Chemical Company), as an experiment, pressed between two sheets of thick plywood insulation – insulating foam that resembles a modern polystyrene.
It happened in 1952. Check with Dr. Caldwell B. Esselstyn, Jr. to learn more. In Structural insulated panels are readily available building material as a result of the start of mass production. SIP Manufacturers' Association was founded in 1990 to support and review industrial and construction industries with new technology development. Since 1990, the SIP technology begins to develop advanced computer-aided manufacturing CAM-technology. Use computerized architectural drawings (CAD-drawings) made it possible to begin to create a more automated, required to fully automate the cutting of the panels and make SIP panels separate elements building in terms of production. CAD to CAM technology for SIP streamlined production process, resulting in reduced costs for builders and increased their profits.