WOOD FLOORING INSTALLATION GUIDELINES - Hurst …

1 WOOD FLOORING INSTALLATION GUIDELINESR evised 2019 NATIONAL WOOD FLOORING ASSOCIATION TECHNICAL PUBLICATION 2019 NATIONAL WOOD FLOORING ASSOCIATIONWOOD FLOORINGINSTALLATION GUIDELINES 87 SUBSTRATES: Radiant Heat 102 SUBSTRATES: Existing FLOORING 106 UNDERLAYMENTS: Moisture Control 110 UNDERLAYMENTS: Sound Control/Acoustical 116 LAYOUT Working Lines Trammel Points Transferring Lines 45 Angles Wall-Layout Center-Layout Lasers 121 INSTALLATION METHODS: Nail-Down 132 INSTALLATION METHODS: Glue-Down 140 INSTALLATION METHODS: Floating 145 INSTALLATION METHODS.

2 Parquet 150 PROTECTION, CARE AND MAINTENANCE Educating the Customer Protection Care Maintenance What Not to Use 153 REPAIRS/REPLACEMENT/ REMOVAL Repair Replacement Floating Floor Board Replacement Lace-Out/Lace-In Addressing Water Damage 161 GLOSSARY 176 SOURCES/CREDITS 1 INTRODUCTION 2 HEALTH AND SAFETY Personal Protective Equipment Fire and Extinguisher Safety Electrical Safety Tool Safety industry Regulations 11 INSTALLATION TOOLS Hand Tools Power Tools Pneumatic Tools Blades and Bits 19

3 WOOD FLOORING PRODUCT Wood FLOORING Options Trim and Mouldings Packaging Conversions and Calculations 27 INVOLVED PARTIES 29 JOBSITE CONDITIONS Exterior Climate Considerations Exterior Conditions of the Building Building Thermal Envelope Interior Conditions 33 ACCLIMATION/CONDITIONING Solid Wood FLOORING Engineered Wood FLOORING Parquet and End-Grain Wood FLOORING Reclaimed Wood FLOORING 38 MOISTURE TESTING Temperature/Relative Humidity Moisture Testing Wood Moisture Testing Wood Subfloors Moisture Testing Concrete Subfloors 45 BASEMENTS/CRAWLSPACES 48 SUBSTRATES: Wood Subfloors 61 SUBSTRATES: Concrete Subfloors 76 SUBSTRATES: Wood Subfloor Systems Over Concrete 81 SUBSTRATES: Screeds/SleepersNATIONAL WOOD FLOORING ASSOCIATION TECHNICAL PUBLICATION 2019 NATIONAL WOOD FLOORING ASSOCIATIONThe National Wood FLOORING Association assumes no responsibility and accepts no liability for the principles or techniques contained in these GUIDELINES /methods.

4 These GUIDELINES and methods for the INSTALLATION of wood FLOORING were developed by the NWFA Technical Publications Committee, together with leading industry authorities, through review of longstanding INSTALLATION principles, along with research and data regarding wood FLOORING INSTALLATION . These GUIDELINES and methods address a variety of ancillary products and components related to the INSTALLATION of wood FLOORING , but are not intended to address issues arising to or from those components every effort has been made to produce accurate and generally accepted GUIDELINES , the principles and practices described in this publication are not universal requirements and may change.

5 The recommendations in these GUIDELINES /methods are directed at the North American market in general, and therefore may not necessarily reflect the most-accepted industry practices in other geographic areas. Some INSTALLATION methods and materials may not be suitable in some geographic areas because of local trade practices, climatic conditions, or construction methods. All wood FLOORING installations must conform to local building codes, ordinances, HOA CC&Rs (Covenants, Conditions and Restrictions), trade practices, and climatic addition, manufacturers recommendations for INSTALLATION of specific products should always supersede the recommendations contained in these is recommended that all wood FLOORING products be installed in accordance with the NWFA INSTALLATION GUIDELINES and all applicable manufacturer instructions by an NWFACP Certified Installer, NWFA member, or equivalent.

6 Copyright 2019. National Wood FLOORING Association. St. Louis, Missouri, All rights reserved under both international and Pan American copyright WOOD FLOORING ASSOCIATION TECHNICAL PUBLICATION 2019 NATIONAL WOOD FLOORING ASSOCIATION1 INTRODUCTIONH ands-on and Online Education Available through NWFA UniversityThe National Wood FLOORING Association offers online and hands-on training courses for wood FLOORING professionals through NWFA University. There is a comprehensive selection of technical education for professionals at all skill levels: Basic, Intermediate, Advanced, Craftsman, and Master Craftsman.

7 For more information, contact NWFA at:[P] [W] of the many benefits of wood FLOORING is that, when installed and maintained properly, they are the only FLOORING option that can last for hundreds of years. In fact, there are documented wood floors in Europe that date back more than five centuries. Wood FLOORING can be maintained and restored to its original appeal after decades of wear and the finest carpets will wear out after only a few years of traffic. Tile and stone can crack or chip when something gets dropped on them, and grout can crack and stain over time.

8 Plastic and vinyl FLOORING can suffocate the home, and are generally designed to be disposable. Those who work with wood floors for a living know that installing them is not a DIY job. You have to have the right tools, the right subfloor, the right jobsite conditions, and the right skills to have a successful INSTALLATION . Wood FLOORING professionals who receive the proper training, and have the necessary industry knowledge, will be well-prepared for nearly any job they FLOORING is available in a wide range of options, including species, widths, thicknesses, shapes and sizes, and even different levels of hardness and dimensional stabilities.

9 Each of these options necessitate an understanding and careful consideration for proper INSTALLATION of the products. There are a number of processes that must be correctly undertaken in order to achieve a floor with the performance and appearance that is of professional standards. These GUIDELINES outline the industry -accepted methods and procedures for wood FLOORING installations. The information included has been organized in a way that will contribute to a successful INSTALLATION . NATIONAL WOOD FLOORING ASSOCIATION TECHNICAL PUBLICATION 2019 NATIONAL WOOD FLOORING ASSOCIATION2injuries alone cost more than $300 million per year in lost production time, medical expenses, and worker compensation.

10 OSHA requires employers to ensure the safety of all employees in the work environment. Eye protection must be provided whenever necessary to protect against chemical, environmental, radiological, or mechanical irritants and hazards. Good eye protection is meant to: Provide adequate protection against the particular hazards for which they are designed. Be of safe design and construction for the work to be performed. Be reasonably comfortable when worn under the designated conditions. Fit snugly and not unduly interfere with the movements of the wearer.