Blog – Flashing

The Power of Rust

By Robert G. Wilkin, P.E., SECB   We have known for many years that as rust forms on metal installed in masonry or concrete, the rust  expands up to seven times the original thickness of the metal.  The force of this …

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Window and Door Sill Flashing

By Stephen McDermott Exterior windows and doors are replaced for variety of reasons including, inadequate performance (drafts and water infiltration), aesthetics and operational problems.  Replacement windows and exterior doors are available to the public in many forms and levels of …

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Masonry Wall Flashing

By Bob Wilkin, P.E., Waterproofing/Building Envelope Specialist Few people realize the amount of water that can penetrate a brick or concrete block wall during a rain storm.  This water needs to be managed in order to prevent leakage and damage …

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