This book is about Replacement Windows and the techniques and application specific conditions you might meet. For Replacement Windows, while primarily uPVC (Vinyl Windows), there are other frame materials such as fiberglass that are popular, as well. Even wood framed windows can be replacement designed. Replacement design is more about the method of installation than anything specific with regard to the glazing packages or the operation of the new window product. With modern manufacturing techniques and innovations in product design, today's residential Replacement Window is easy to measure, specify and install by professional contractors. The Replacement Window is very popular in American homes. This is due in no small way to the rise of a value- conscious consumer who is willing to invest in improving their lifestyle, improving their home, and saving energy. The majority of all home construction is based on similar dimensions of the building materials which has created wall thickness, and frame depths of consistent size and configuration. Some replacement applications make use of New Construction type windows and doors. Those situations are covered as well. Standardization is the key. The fact that all studding is 2" x 4'', and common construction lumber is 2" x 6", 2" x 8",2" x 10", etc. and sheathing and wallboard panels are 4" x 8" is a result of standardization that created efficiencies and lower construction cost. This standardization is maintained through local and national building codes. Because of standardization, most residential Replacement Windows have a frame depth of 3-1/4" when requiring the use of inside stops. Frame depths up to 4-1/8" for heavy duty windows and some casement and awning windows are possible if flush trim is used. The instructions contained in this book are the result of industry best practices that will accomplish professional and consumer satisfying results. AWDI and the Window Fitters Guild use these instructions in their national Installer Certification program, and many of the instructions and techniques follow the published and accepted standards of other industry associations, and code bodies as well. These instructions have been accepted as Energy Star® compliant, as well. Interfacing the Weather Barrier. All windows, when originally installed, have been to one degree or another interfaced with the weather resistive barrier of the existing building’s wall. There are two basic approaches to replacement: Frame Out (total removal of old window and the new window is installed to rough opening), and Frame In (where sash and glazing panels are removed and the new window is fitted to the old frame. These guidelines assume that when the replacement is finished, regardless of the approach used, the integrity of the original weather resistive barrier has been maintained. Read this book first. This manual goes into detail about the general standards and recommendations for proper installation. These will give you an overview of the considerations and situations you must be concerned with and how to handle them. The manual deals with specific situations in removal, replacement, and new construction applications. The information contained on these pages will give you the knowledge and procedures required to do a proper job under most circumstances. This book is not designed to be a substitute for instructions provided by the manufacturer of the window you choose. Each installation situation can be different, and these instructions best serve as a guide. Some installs are shown with accessories which can be purchased separately. No warranty can be made, nor is implied by these instructions. And it is important that all applicable local building codes be followed when removing windows, altering openings, and installing new window products. The drawings, illustrations and instructions are protected under various Copyrights held by AWDI, LLC; Jervis & Associates and John H Jervis, from 1989-2022, and may not be reproduced without expressed written permission of the copyright holders. Published under license by AWDI, LLC. Introduction Window Fitters Guide to Window Installation ©2022 AWDI, LLC Do not reproduce without permission Although all possible measures have been taken to ensure the accuracy of the material presented, AWDI, and the author are not liable and do not assume any liability in case of misinterpretation of directions, misapplication, improper installation, or typographical error. Be sure to consult and follow, where appropriate, the manufacturer’s instructions and the local building codes. SAMPLE MANUAL
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