Structural insulated panels, also known as SIPs, may just be the green building technology of the future. The panels are constructed from a layer of insulation sandwiched between two skins of oriented strand board. The panel then functions as one, energy-efficient unit. SIPs construction is fast and efficient, and it helps conserve forest resources because it minimizes wood waste. If you want to build an energy-efficient home, there’s a lot to be said for building with SIPs.