The new guide from ASHRAE on building information models and building information modeling (BIM) serves as a resource for professionals considering BIM tools and applications for their businesses.

According to the guide, An Introduction to Building Information Modeling, BIM is “a digital representation of the physical and the functional characteristics of a facility.” Unlike 2-D or 3-D CAD, BIM software utilizes intelligent objects to create models.

Dave Conover, a member of the BIM steering committee who wrote the guide, believes the benefits of using BIM applications are numerous and include enhanced interoperability that will improve Integrated Building Design and Integrated Project Delivery. Most important, however, is BIM’s ability to create an accurate model that is useful throughout the entire life of the building, from initial design through occupancy and operation, Conover says.

In addition to listing BIM’s advantages, and tips for getting started with the application, the guide also includes a list of helpful software so that engineers might choose the best program for their company.

For a free download of the guide, An Introduction to Building Information Modeling, visit <www.ashrae.org/publications>.