Polyguard Architectural division specializes in products that protect surfaces and structures from moisture, air, water, and other undesired contaminants. Polyguard offers the latest innovations in water management to control moisture and air within the building envelope. Their Integrated Building Envelope System includes products designed to work together with unique connection points to protect the structure from below grade to the roof.
Len Anastasi has been working in the construction industry for over 30 years in masonry, waterproofing and restoration work.
He currently owns EXO-TEC Manufacturing, Inc., EXO-TEC Solutions, Inc. and EXO-TEC Consulting, Inc.
In his construction and consulting work, he has performed inspections and repairs on over 300 buildings.
Len has given expert testimony in trials and reviews on dozens of legal cases.
He is a member of ASTM’s E 06 Committee, the Boston Society of Architects Building Enclosure Council, Air Barrier Association of America, the Construction Specifications Institute, and the International Concrete Repair Institute.
Book Len for your Next Event! 
Successfully helping Architects, Builders, and Contractors Build Leak-Proof Buildings throughout the USA for over 30 years.