½” (12Mm) HDF CORE Engineered Tongue & Groove INSTALLATION
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wood flooring C. SUBFLOOR TYPES AND CONDITIONS ypes efer to NWFA Installation Guidelines, Section II for ubfloor nformation xposure plywood minimum thick olid board x wide square edge kiln dried xposure minimum thick oncrete efer to NWFA Installation Guidelines, Section II, Chapter 5 & 6 article board is an approved subfloor for nail down or glue down applications inimum lywood ub flooring equirements x sheets of grade underlayment with a maximum on center joist construction f joist system is spaced over on center an additional layer of ½” (12mm) HDF CORE lywood underlayment laid diagonal or perpendicular will be required Engineered Tongue & Groove inimum specified materials at maximum span and spacing may result in movement gaps and noises he subfloor must be clean dry and flat to within per radius f necessary sand or plane high INSTALLATION GUIDELINES spots and fill low areas using a cement based patchingleveling compound ecure any loose boards or panels to prevent squeaking he surface temperature of the subfloor at time of installation should be at Float/Glue down/Nail or Staple least but never exceed Asbestos Warning Please read all installation guidelines o not sand existing resilient tile sheet flooring backing or felt linings as these products may contain asbestos fibers that are not easily identified he inhalation of asbestos dust can cause asbestosis or other before proceeding with installation serious bodily harm heck with local state and federal laws for handling hazardous material prior to attempting the removal of these floor A. INSTALLER/OWNER RESPONSIBILITY - IMPORTANT amage due to moisture issues is not a product failure and is not covered by our warranty Inspect all ooring material carefully for correct product and visible defects BEFORE INSTALLATION. Warranties do not cover visible defects once they are installed. (Based on industry standards a eep dry and ventilated rawl spaces must be a minimum of defect/irregular tolerance of up to 5% is allowed). from ground to underside of joists xposed earth should be fully covered by a minimum to mil black polyethylene vapor barrier with joints overlapped and sealed with a moisture resistant tape As all wood is unique, with no two pieces alike, review and compare the new ooring with the “sample board” from which the oor was selected to ensure it meets the homeowners expectations prior to the ew concrete should be completely cured for at least days est for installation. If ooring is not acceptable, do not install and contact your distributor immediately and excessive moisture reading of over lbs sq ft per hours by alcium hloride test requires the arrange for replacement. application of a vapor retarder It is the responsibility of the installer/owner to ensure suboor and jobsite conditions are environmentally nsitu est elative humidity probes should read relative humidity or less in all areas and structurally acceptable for wood oor installation. Problems or failures related to deciencies in suboor or job site damage after installation are not covered by our warranty. nsure concrete has a minimum of ompression ver a lightweight concrete less than use a floating installation o check for lightweight concrete draw a nail across the top f it scratches eceive the floor and make sure it meets owners expectations or indents it is probably a lightweight concrete rade out and separate any pieces with visible defectsirregularities est the subfloor and jobsite itself including ambient temperaturerelative humidity and all other hen floating over a wood subfloor cover wall to wall with an underlayment variables that may adversely affect a wood floor overlapped at seams follow underlayment manufacturing instructions t is recommended to tape ecord the flooring moisture content upon delivery and at time of installation overlapped edges with a cellophane tape o prepare wood subfloor for installation renail any loose areas to prevent squeaking and or plane high spots and fill low areas cclimate flooring to appropriate site conditions Follow NWFA Installation Guidelines for Acclimation on Jobsite (Section I, Chapter 2) t is very important to nail or screw any area of loose or moving sub floor that will cause squeaks ecord and retain a permanent job record anufacturer recommends the use of nails or screws with panels fastened every inches along the joists or intermediate supports to ensure soundness of floor when complete his collection is designed to perform within a typical residential environment ood installed in areas where relative humidity is below may cup and shrink humidifier may be necessary he moisture content of a wood subfloor should not exceed n general the moisture content of to keep the relative humidity within recommended levels of to year round looring installed on hardwood flooring is between and and the difference between the subfloor and flooring should wet subfloors may crown and buckle not exceed on a or wider flooring Prior to installation over radiant heat systems it is important to refer to the NWFA Installation Guidelines Section IV. Appendix H. Failure to follow these guidelines can void your warranty and may produce B. PRE INSTALLATION/JOBSITE REQUIREMENTS unsatisfactory results. Use only over water-heated systems, not recommended over electrically heated systems. ACCLIMATION IS CRITICAL NWFA - National Wood Flooring Association: llow floors to acclimate to the appropriate jobsite conditions roper acclimation is particularly important 800-422-4556 (USA) / 800-848-8824 (Canada) in extremely dry climates eg tah rizona evada daho olorado See NWFA Installation Guidelines, Section I, Chapter 2 for more acclimation details. Radiant Heat Suboors can be concrete, wood or a combination of both. pon delivery check wood flooring moisture content with a moisture meter to establish a baseline for e type of suboor determines the suboor preparation. required acclimation ecord at time of delivery at time of installation If the Radiant Heat suboor is concrete the system should be fully operating at a normal temperature for a minimum of 21 days prior to oor installation, to dry out residual moisture. ut of the box acclimation is the most effective and recommended by rbanfloor f outofbox acclimation is not possible open boxes at both ends to allow air to circulate through planks f planks are covered with e system MUST then be turned o 24 hours prior to installation and must remain o for 24 hours after plastic wrap cut plastic at both ends to allow for proper air circulation llow planks to lay flat for a installation so that the adhesive does not cure excessively fast. After the 24 hours, the system temperature minimum of days or as long as necessary for the planks to meet the job site moisture conditions se a can be gradually raised again (over a 7 day period) up to the desired level. moisture meter to monitor the flooring and jobsite conditions as they acclimate e maximum allowable suboor surface temperature over radiant heat is 85F. oom temperature and humidity of installation areas should be consistent with normal yearround living conditions for at least before installation of wood flooring oom temperatures of to Radiant heat is a dry heat. A humidication system is recommended to maintain wood ooring in its and a humidity range of to should be maintained yearround comfort zone. Surface checking, excessive gapping, etc. can be expected if the proper humidity level is not maintained between 30-50% year round, or the surface temperature exceeds 85F. he moisture content of hardwood should generally be between to f wood is used for subfloor the should be no more than between subfloor and properly acclimated wood flooring To minimize the eect that rapid change in temperature will have on the moisture content of the wood oor, an outside thermostat is recommended. HANDLING AND STORAGE ardwood flooring should be one of the last items installed in any new construction or remodel project ll INSTALLATION METHODS OVER RADIANT HEATED FLOORS: work involving water or moisture should be completed before installation of flooring e following installation methods can be used over radiant heated oors: o not deliver wood flooring to the job site until the building is entirely closed and until appropriate FLOATING (RECOMMENDED) - See Floating Method on reverse temperature and humidity conditions have been achieved ppropriate temperature and humidity conditions Install over approved suboor. A minimum 6 mil poly vapor retarder should be used over a concrete are defined as those conditions to be experienced in the building after occupancy suboor. In some cases, this may be part of the ooring underlayment . A foam or resilient approved underlayment must be installed prior to installation of wood ooring. Use Dri-Tac 8100 or Titebond T&G glue for grooves. HVAC should be in operation before and during installation refer to NWFA Installation Guidelines Section I, Chapter 1, Part 1 for further information oom temperature and humidity of installation areas should be consistent with normal yearround living conditions for at least before installation of wood GLUE DOWN - See Glue Down Method on reverse flooring oom temperatures of and a humidity range of is recommended yearround Use over an approved suboor. Use only approved adhesives - Urbanoor recommends Simple Spread or other Urbanoor adhesives. rotect flooring from moisture during storage and transportation tore material in a flat dry and totally enclosed area arages exterior patios for example are not acceptable areas to store STAPLE / NAIL DOWN: See Staple/Nail Down Method on reverse Install over approved suboor. Be sure fasteners are not so long as to penetrate the heat source. Page 1 D. GENERAL INSTALLATION METHODS Always nail moldings to the adjacent wall, not the ooring! Clean, sweep, and vacuum installed ooring REFER TO NWFA INSTALLATION GUIDELINES, SECTION III, CHAPTER 9 before use. e product can be installed above, on-grade or below-grade but should not be installed in full bathrooms Fill visible gap in joints with a non-silicon based ller (test color rst on spare plank).