Although there are neither standards nor legislative requirements to deliver projects in BIM, many architects, structural engineers and contractors, plus a few investors are already applying BIM. An American National Standard entitled APPA 1000 - Total Cost of Ownership for Facilities Asset Management incorporates BIM to factor in a variety of critical requirements and costs over the life-cycle of the building, including but not limited to: replacement of energy, utility, and safety systems; co...

In December 2011, it was approved by the US-based National Institute of Building Sciences as part of its National Building Information Model (NBIMS-US) standard. The initiative intends Lithuania to adopt BIM, Industry Foundation Classes (IFC) and National Construction Classification as standard. BIM is often associated with Industry Foundation Classes (IFCs) and aecXML - data structures for representing information - developed by buildingSMART. As some BIM software developers have created propr...

This configuration is feasible for new construction, but difficult to implement in existing buildings. The Czech BIM Council, established in May 2011, aims to implement BIM methodologies into the Czech building and designing processes, education, standards and legislation. Air doors work best when the pressure differential between the inside and outside of the building is as close to neutral as possible. Air doors are designed to fully cover the width of a doorway, whereas overdoor heaters may ...