42 consulting in the field of engineering for building enclosures, namely roofing, waterproofing, curtain walls, windows, wall systems, below-grade waterproofing; consulting in the field of engineering for building science, namely consulting regarding the impact of heat, air and moisture transfer on buildings, building components and systems, and hygrothermal and thermal analysis; consulting in the field of forensic engineering and investigation of structures and building enclosures; engineering services for building and property condition assessment; structural engineering; restoration engineering