Call us: 409.740.0090

About Us

Our Mission

We will utilize the most cutting edge processes to provide the absolute best services with the most talented team available while maintaining the highest integrity.

Firm Profile

Zero/Six Consulting, LLC was founded in 2003 by Bill Coltzer Jr., AIA in response to an industry wide need for higher performing and cohesive building envelope systems. Since its establishment, Zero/Six has become a leader in delivering innovative solutions for the creation and maintenance of better building envelopes. A firm focused solely on building envelope integrity, we have assembled a staff of professionals with diverse skill sets — Architects, Engineers, LEED Green Associates, Registered Roofing Observers (RRO), Project Managers, and Field Specialists — to achieve the necessary “whole building” approach. Our extensive knowledge of glazing systems, windows, roofing systems, cladding systems and waterproofing assemblies, and those portions of your facility controlling air quality and moisture prevention will ensure an accurate assessment of both the current environment as well as future expectations. All major building systems and elements are identified and assessed, approximate remaining economic life service is determined, and budgetary cost estimates for resolving problems and deficiencies are developed to ensure the goals of our clients are met in terms of facility function, cost control, and maintenance repairs.

The three step process and the specialized expertise Zero/Six utilizes to deliver on the services set forth in each project, are as follows:

Develop the Intent (Design/Development)

Eight out of every ten construction litigation cases involve water infiltration. The Owner seeks to take delivery on a building that will prove to be an asset rather than an ongoing liability. Therefore, it is vital to establish project requirements in regards to the building enclosure at the earliest stages of the process. This can be done only by expertise in architecture that is specific to the building enclosure. Architecture – Led by our CEO Bill Coltzer Jr., AIA, a licensed Architect, with over 30 years of specialized experience in building enclosure design and specification. Mr. Coltzer will work with the client to lead his team through the schematic and design stages, insuring they satisfy the design intent.

Inspect the Product (Quality Control/Quality Assurance)

Once our client has secured construction documents that convey their intent, the next step in the process is to “Inspect the Product” through a quality control (QC) program executed by Zero/Six staff that understand how the various systems will interface. These individuals are able to go beyond just understanding how the systems interface in their investigations, as the success of the QC program is largely dependent on the ability of the inspectors to safely access hard to reach areas. Finally, as part of the QC program, deficient work will be logged as it is observed and then tracked to a resolution.

Test the Collaborative Effort (Testing)

Successful delivery of the Owner’s intent goes beyond quality control by verifying the successful collaboration of designers, manufacturers and installers through an accredited testing program. Since testing verifies design, as well as construction, the collaborative effort must be tested as early in the process as practical so repetitive deficiencies can be corrected prior to a full blown remediation effort. Zero/Six along with The Z6Cx Team is an industry leading commissioning, windstorm and stormwater engineering firm that also provides ISO-accredited building performance testing both in the field and laboratory settings, will test this collaborative effort to ensure our clients take delivery on a building that meets their intent.

Our Services

Discover how we deliver innovative solutions that ensure optimal building envelope performance

  • Pre-Construction Services
    • Owner’s Project Requirements (OPR) / Basis of Design (BOD) technical assistance and documentation
    • Commissioning Plan
    • Preparation of Construction Documents
    • Drawing Review/Design-Assist
    • Building Information Modeling
  • Construction Phase Services
      • Construction Management
      • Project Management
      • Mock Ups
        • Virtual 3D mock ups utilizing BIM
        • Laboratory installations for testing
        • Site installations for aesthetic
          approvals and/or testing
      • Recovery Details
      • Quality control inspections with detailed
        reporting and deficiency tracking
      • Building Envelope Commissioning
      • Performance Testing of cladding systems to ensure compliance with specified standards

  • Forensic & Aviation Services
    • Dispute Resolution
    • Expert Testimony
    • Building Envelope Analysis
    • Unmanned Aircraft Systems (UAS)
  • Energy Performance & Optimization Services
    • Whole Building Energy Modeling
    • Building Envelope Thermal & Moisture Analysis
    • Life Cycle Cost Analysis
  • Litigation Consulting Services
  • Other Services
    • Preventative Maintenance Programs
    • Facility Asset Management & Database

  • Testing Services
    • Flood testing of waterproofing
    • Wand/Nozzle testing
    • Water infiltration testing by static air pressure difference
    • Air leakage testing
    • Roof uplift testing per ASTM and FM standards
    • Adhesion of sealant joints
    • Thermal imaging
    • Air barrier testing
    • Emergency event response (storm, fire)
    • Re-creation and testing of failed assemblies
    • Failure analysis—structural
    • Failure analysis—water infiltration
    • Roof drain testing
    • Quality assurance
    • Lath and stucco investigation
    • Electronic Leak Detection (ELD)

Professional Affiliations

ISO/IEC 17025 certification has been awarded to Zero/Six Consulting, LLC. by the ANSI-ASQ National Accreditation Board (ANAB/ILAC). This pinnacle of international accreditation requires us to conform to the highest standards in testing procedures available to achieve optimal building envelope efficiency for our clients.

Z6 can now provide our clients with laboratory and field services that are benchmarked against systems and standards to ensure uniformity and integrity of test results. Our clients can rest easy in the knowledge that each year Z6 will undergo an exhaustive external audit of quality control.


Valid to: October 26, 2024

Certificate Number: AT-2090

I. Construction Materials / Mechanical


Specific Tests and/or Properties Measured Specification, Standard, Method, or Test Technique Items, Materials or Product Tested Key Equipment or Technology
Water infiltration ASTM E 1105, ASTM E331, ASTM E547, AAMA 501 Exterior Windows, Doors, Skylights, Curtain Walls Water Distribution Rack, Centrifugal Blower, Manometer, Wind Generator, Spray Wand
Air Infiltration ASTM E283, ASTM E783 Exterior Windows, Doors, Skylights, Curtain Walls Centrifugal Blower, Laminar Flow Element, Manometer
Water and Air Infiltration AAMA 502, AAMA 503 Exterior Windows, Doors, Skylights, Curtain Walls Water Distribution Rack, Centrifugal Blower, Manometer
Deflection / Deglazing ASTM E330 Exterior Windows, Doors, Skylights, Curtain Walls Digital Deflection Indicator, Centrifugal Blower
Uplift Force ASTM E907, FM Global 1-52 Roofing Systems Uplift Chamber, Manometer, Centrifugal Blower
Roofing, Window Sealant, Foundation Humidity, Cladding Moisture Absorption ASTM C1521, ASTM F2170, Rilem Commission 25/PEM test method 1154) Miscellaneous Sealant Test Kit, , in situ probes, Rilem Tubes
Whole Building Enclosure Airtightness Compliance ASTM E779, ASTM E1186 Building and Home Enclosures High Pressure Blower Door Systems, Smoke Tracer Unit, Infrared Camera
Pull-off Strength of Adhered weather Barrier ABAA T0002-2019 Weather Barrier Construction Load Cell Pull Tester
Electronic Methods for Detecting and Locating Leaks in Waterproof Membranes D7877, ASTM D8231 Waterproof Membranes High & Low Voltage Electronic Detection Units
Field Test Procedure for Determining Resistance of Roofing Fasteners ANSI/SPRI-FX-1 2021 Roofing Fasteners Construction Load Cell Pull Tester

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    Corporate Headquarters

    1027 23rd Street Rear, Galveston, TX 77550
    409.740.0090 (office)
    409.740.0554 (fax)

    Laboratory Field Office

    2025 Nichols Ave, Dickinson, TX 77539
    409.766.7444 (office)