Window Flashing Tape

By Robert Robillard on Exterior Repairs

Flashing A Window Rough Opening

Leaks happen!!  The best method to ensure that water leaks do not get in and under windows is to use window flashing tape.   When combined with a sloped sill, a self-adhered, rubberized window flashing tape can create a continuious water barrier.  

One of the better flashing materials is  DuPonts FelxWrap.   As a carpenter I like this flashing because it efficiently conforms around custom shapes, bridging the interface between the rough opening and the building envelope.

How It Works:

The DuPont FlexWrap window flashing tape is an expendable flashing material made with 100% a butyl-based adhesive layer. It allows you to flash a window or door opening with one seamless piece of material.  no seams – no leaks.  The product is also very effective for flashing round top windows or custom shape areas. 

Read more on Flashing Issues

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About the author

Robert Robillard

Carpenter / Remodeler / Editor

Rob Robillard is “The Concord Carpenter” Rob is a builder, general contractor, carpenter, woodworker, and editor of Concord Carpenter and ToolBoxBuzz As a General Contractor and carpenter, Rob owns and operates Concord Carpenter LLC. A full-service remodeling and construction company. Rob is a recognized leader in home building best practices and a source for how-to information for building professionals. On this website, Rob covers all aspects of home construction, building science, home improvement, woodworking, remodeling, and some of the best product and tool reviews. Rob is in charge of our Tool and Product Review series - Concord Carpenter Videos where we post all of our tool reviews and video tutorials. Rob approaches remodeling and building construction with a pragmatic and problem-solving approach. He enjoys using his knowledge and experience to help and educate building professionals as well as DIYers on best practices in the construction and remodeling industry. He's a strong advocate for "raising the bar" in the construction trades and promoting the trades to youth. #BeAMentor #Green2Great Craftsmanship, quality, and pride guide his journey on this channel The Concord Carpenter's motto: "Well done is better than well said!" : Read more about Rob

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