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Window and Door Design and Installation Guide

Nystrom Elementary School

Nystrom Elementary School CC-ND

This post explores basic information on the design, specifying and installing doors and windows. Techniques for installation of “punched” windows and doors have been evolving continually over the last two decades. For many years, the accepted standard involved four strips of flexible flashing integrated with a nailing fin and the water resistive barrier (WRB) at the window perimeter. This concept was easy to understand and implement because the window fins, the flashings and the WRB were typically all in the same plane. It is amazing, however, that so many designers and builders were still able to get it wrong. Read More

Vinyl Windows May Exacerbate Water Intrusion in Stucco Walls

Because of a very high coefficient of thermal expansion, vinyl window installation in stucco walls may result in large joints and water intrusion between the window and the stucco cladding. Read More