Building Envelope Technology & Research (BET&R) is a professional roofing, waterproofing, and cladding consulting firm specializing in building envelope design for new and retrofit construction projects, moisture intrusion investigation and remediation, dispute resolution, expert witness work for construction litigation projects, and materials and application testing, research, and technology.

Tel: 206.405.3455Fax: 206.405.34584000 Delridge Way SW, 1st Floor   Seattle, WA 98106

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