The broad use of credit to purchase a security. The current (1994) rules of the New York Stock Exchange (NYSE) state that an investor must have at least 50% of the cost of a security in cash. An investor using extensive margin would be using the maximum credit available to purchase securities increasing the risk should the market value of the purchased securities decline and trigger a broker's call for additional cash to mark the margin to the market value.
Water-resistant panels, made with a core that is wrapped with water repellent being facing paper, which are used outside where there is limited exposure to the elements. Joints are finished off with joint tape and water resistant joint compound and the panels can be used without decoration. Panels are 4 feet in width and eight or twelve feet in length with either ½" or 5/8" thickness, with the 5/8" thickness being fire-resistant rated.
The external covering finish of a structure, which protects it from the elements. Exterior finish material including shingles, siding and paints are designed to resist severe weathering effects as well as providing decoration.