There are a number of different materials used to create insulation for buildings. The standard type of insulation St. Louis buildings will have will be the basic fiberglass rolls. This is the rolls of pink fiberglass most people are familiar with as an insulating material. The process of adding it between the sections in a wooden structure is relatively simple, making the product easy to install. There are alternative types of insulation created as foam, which need to be sprayed in between the beams of the buildings frame. The spray requires the use of a high pressure hose and the people need to be well protected against any splattering.