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Building Envelope Commissioning Services


Z6 Commissioning, LLC is an industry leading testing organization providing ISO accredited building performance testing on project sites and at their laboratory

Building Enclosure or Building Envelope Commissioning is defined as “a strict quality-focused process wherein the energy performance of a facility, system or assembly is evaluated and verified against defined objectives and criteria.”

Building Enclosure Commissioning Process (BECx)

The commissioning process begins at project inception stage and continues throughout different construction phases, such as pre-design phase, pre-construction phase and construction phase. Even on completion of the construction project, the commissioning process continues and gets implemented on an ongoing basis. The commissioning process has been explained in detail in the NIBS Guideline 3-2012 Building Enclosure Commissioning Process BECx.

The BECx process is carried out by a commissioning team. It uses reliable and accurate measures to verify and validate that the project is meeting pre-determined quality requirements. Now there is a standardized process for an independent third-party working directly for the owner to clearly define project goals, ensure air-tightness and vapor control are properly addressed in the construction documents, and verify installation of air-sealing and good vapor control measures during construction. This person is known as the Building Envelope Commissioning Agent (BECxA). BECxA full scope of services, as laid out by NIBS, include:

  • BECx Pre-Design Consulting Services
    • Develop Owner’s Performance Objectives (OPO) or Owner’s Project Requirements (OPR)
    • Develop initial Commissioning Plan / Schedule
  • BECx Design Phase Services
    • Review architect’s design concepts against the Owner’s Performance Objectives (OPO)
    • Develop computer simulations for daylighting, solar orientation and energy efficiency
    • Assist with material / building product selection
    • Review project drawings and specifications for conformance of goals stated in the OPO, and review of LEED/ GPR/ LBC goals.
    • Develop enclosure commissioning specification and identify responsibilities of the GC and subcontractors
    • Perform final review of bid documents
  • Construction Phase Services
    • Evaluate submittals, shop drawings and RFIs
    • Oversee construction of mock-up and perform testing with documentation, observations, comments, and recommendations
    • On-site review and field testing of installations
    • Attendance at key site meetings
  • Operations & Maintenance Phase Services
    • Review of all warranties, manuals, maintenance instructions, and close-out documentation

Z6 Building Envelope Commissioning Services


Broadly, Building Envelope Commissioning / BECx work involves schematic design, building science, and building testing. Building science includes study of the flow of heat, air and moisture across all 6 sides of the building envelope – walls, roof and slab. Z6 offers comprehensive BECx services as follows:

  • Flood Testing of Waterproofing
  • Wand / Nozzle Testing
  • Chamber Testing
  • Forced Entry
  • Evasive Moisture Survey
  • Roof Membrane Uplift Resistance Testing
  • Static Pressure Water Infiltration Testing
  • Weep Testing of Cavity Wall
  • Lath and Stucco Investigation

  • Air Leakage Testing
  • Adhesion of Sealant Joints
  • Thermal Imaging
  • Air Barrier Testing
  • Emergency Event Response
  • Failure Analysis – Structural
  • Failure Analysis – Water Infiltration
  • On-site Quality Control & Reporting
  • Electronic Leak Detection (ELD)

Learn more about our Building Envelope Commissioning Services. For more information, Call us on: 409.740.0090 or visit our website www.z6consulting.com for more details.