We all want to be able to control who comes in our homes. It is also important to prevent damage to assemblies that can be caused by insects and rodents. Animal pests can also represent disease vectors or asthma triggers.

Not all parts of the building enclosure represent places where pests are likely to gain access to the building assemblies or interior. The techniques for controlling pests at likely access points depend upon which kind of threat must be controlled. This guide illustrates minimum basic measures to be included in a DER project. Some situations will require measures beyond those represented in this guide.