Weathertight Consulting

Weathertight Building Consulting, LLC (WTBC) is a quality-oriented building enclosure consulting firm headquartered in Houston, Texas. WTBC is primarily focused on design, commissioning, and third-party consulting for building enclosure systems. WTBC was started in 2021 by Christian Ozbun, a licensed architect specializing in building enclosure consulting. Christian Ozbun has over 15 years of relevant experience. Services Provided: Consulting • Peer Review • Design Assist • Construction Observation • Assessment of Existing Roofing, Facades, etc. • Due Diligence Assessments • Building Envelope Repair Design • Below Grade Waterproofing Design • Roof Replacement Design Testing • ASTM E1105 – Static Differential Pressure Window Testing • ASTM E783 - Quantitative Air Leakage Window Testing • AAMA 501.2 – Nozzle Water Testing • ASTM E1827 – Quantitative Air Barrier Testing / Whole Building Air Pressurization Testing • ASTM E1186 - Diagnostic Air Barrier Testing • ASTM D4541 – Coating Adhesion Testing • ASTM C1521 – Joint Sealant Adhesion Testing • ASTM D7877 – Electronic Leak Detection • ASTM E1827 – Blower Door Testing • ASTM D7954 – Moisture scanning via Impedance Scanner • ASTM E907 – Wind Uplift Testing of Adhered Membrane Roofing Systems Forensic Consulting • Expert Witness • Destructive Testing • Water Infiltration Testing • Infrared Thermography • Moisture Scanning • Roof Coring