Instruct: Classify Amazon reviews into positive or negative sentiment
Query: An essential guide to a watertight building envelope

Creating a proper building envelope requires a thorough understanding of the thermal, vapor transmission and water barrier properties of each element of the envelope and an equal understanding of how these elements work together. Christine Beall's knowledge of these subjects is both broad and deep, while her presentation of her knowledge is is clear and concise. I have over 50 years of experience building large structures and I still find myself referring back to this book to refresh my memory or clarify a point relative to a specific situation on a project. A construction library can have many books and a variety of reference materials but it would not be complete if it did not include this book.