Revision 02 - January 2019
F06A - SPECIFICATION GUIDE 09 62 23 - BAMBOO
F06A-1 General
F06A-2 Products
F06A-3 Execution
F06A-2 Products
F06A-3 Execution
SPEC NOTES:
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1 • GENERAL
1.1 Description:
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SPEC NOTES:
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.1 Section Includes: All labour, materials, equipment, and services to supply and install bamboo flooring to areas noted on the drawings and as specified herein.
.2 The work shall also include: |
SPEC NOTES:
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.a review and acceptance of conditions and surfaces.
.b job site coordination and cooperation. .c [vapour retarder barrier] .d [acoustical / isolation underlayment]. .e fastenings and/or adhesives. .t [wood base (and quarter round if required)] [resilient base]. .g associated mouldings, trim and accessories such transitions to other flooring materials [and thresholds at entries refer to 1.1.3.d below]. .h [factory] [site] applied finishes as noted herein. .j clean up. |
.3 The following shall be supplied by others:
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.a removal and disposal of existing floor covering materials including adhesive.
.b acceptable substrate surfaces. .c testing for moisture and alkalinity unless otherwise noted herein. .d threshold at entries in accordance with the requirements of Section 08 70 00. |
SPEC NOTE: Use the following (items .4 and .5) only as required. Clauses may be revised to suit specification and/or form of Contract requirements as required.
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.4 This Section along with the drawings forms part of the Contract and is to be read, interpreted and coordinated with all other parts. .5 Division 00 - Procurement and Contracting Requirements and Division 01 - General Requirements form an integral part of this Section of Work. .6 Related Work Specified Elsewhere: Related work includes but is not necessarily limited to the following: |
SPEC NOTES:
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Section 02 40 00 Demolition / Alterations (removal / disposal of existing floor finishes)
Section 02 42 10 Existing Flooring Removal (for flooring only) Section 02 82 00 Facility Remediation (hazardous material removal) Section 03 30 00 Cast-in-Place Concrete (substrates including topping and finishes) Section 03 54 15 Cementitious Underlayment (for levelling) Section 06 10 00 Rough Carpentry (subfloor framing and sheathing) Section 06 20 00 Finish Carpentry (panel underlayment) Section 06 40 00 Architectural Woodwork (wood bases, stair posts and railings) [if supplied separately by others] Section 07 92 00 Caulking and Sealants Section 07 95 00 Expansion Joints (systems for floors) Section 09 30 00 Tiling (transitions to bamboo flooring) Section 09 62 19 Laminate Flooring (transitions to bamboo flooring) Section 09 62 29 Cork Flooring (transitions to bamboo flooring) Section 09 64 00 Hardwood Flooring (wood bases and transitions to bamboo flooring) Section 09 65 00 Resilient Flooring (bases and transitions to bamboo flooring) Section 09 68 00 Carpet Flooring (transitions to bamboo flooring) Section 12 35 30 Residential Casework (millwork base) Division 23 Heating, Ventilation, and Air Conditioning (floor grilles, etc.) Division 26 Electrical (floor outlets / boxes for power and communications, etc.) |
1.2 Reference Standards:
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.1 The latest edition of the Floor Covering Reference Manual issued by the National Floor Covering Association of Canada (NFCA) shall govern all materials and workmanship. Whenever reference is made within this specification to NFCA requirements it shall mean, as a minimum, those standards and requirements noted in the NFCA Reference Manual.
.2 The latest applicable edition of the following reference standards shall also govern all materials and installation work specified herein as applicable: |
SPEC NOTE: Select appropriate standards and delete all others.
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Bamboo Plywood Manufacturers Association (HPMA).
CAN/ULC-S102.2, Standard Method of Test for Surface Burning Characteristics of Flooring, Floor Covering, and Miscellaneous Materials and Assemblies. Workplace Hazardous Materials Information System (WHMIS). |
1.3 Quality Assurance:
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.1 All preparation, materials, and workmanship shall be in strict accordance with NFCA requirements and material manufacturer's written recommendations and detail requirements for conditions of work that apply and guarantee / warranty periods noted herein.
.2 Any preparation, materials, and workmanship that does not meet NFCA requirements shall be repaired or replaced in accordance with Quality Assurance requirements at no additional cost to the Owner. .3 The flooring contractor shall be recommended by the manufacturer / supplier as qualified to install bamboo flooring materials and must have a minimum of three (3) years local experience and have successfully completed a minimum of five (5) projects with the same or similar materials and quantities as this project. .4 The flooring contractor shall maintain a crew of experienced installers throughout the duration of work, to satisfy contract / work schedule requirements. |
SPEC NOTE: Use the following clause on large commercial / institutional projects and where the Quality Assurance Program is used.
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.5 Only persons who are Trade Qualified or Product Qualified in accordance with Part A05 requirements shall be engaged in the installation of bamboo flooring. Include the following if the project is under union jurisdiction [Apprentices may be employed provided they work at all times under the direct supervision of a Trade Qualified person. The ratio of apprentices to journey persons employed on site must not exceed the ratio outlined by local trade regulations.]
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SPEC NOTE: Use the following (1.4) where the Quality Assurance Program is available from the Provincial Flooring Covering Association or other designated Quality Assurance provider in the area of this work. Refer to Part A04.
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1.4 Inspection Requirements:
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.1 All flooring work shall be reviewed in strict accordance with NFCA Quality Assurance (QA) Program requirements by a qualified (i.e. Quality Assurance Program accredited) Inspection Agency assigned by the Provincial Floor Covering Trade Association. Only Inspectors who have been approved under the Quality Assurance Program shall be assigned.
.2 The appointed QA inspector shall notify the flooring contactor and [Contractor] [Owner] in writing of any substrate defects and potential problems that may affect installation of materials prior to commencement of work. .3 Fully cooperate with the QA inspector at all times in the performance of his/her duties when inspecting on-site areas and substrate surfaces scheduled to receive bamboo flooring. .4 The cost of inspections including the QA Maintenance Bond shall be included in the cost for this work. |
1.5 Testing Requirements:
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.1 Moisture and alkalinity tests shall be conducted by an independent third party testing agency using testing methods and devices in accordance with NFCA requirements and the floor covering manufacturer’s recommendations. In multiple story buildings each floor level shall be tested. All test locations shall be marked on As-Built Drawings.
.2 It shall be the responsibility of the General Contractor to provide and pay for such testing in a timely manner. .3 The final test results must be in compliance with NFCA requirements and the bamboo and adhesive manufacturer’s recommendations, and unless otherwise permitted by the material manufacturers [and approved by the NFCA Quality Assurance Inspector]: |
.a vapour emissions shall not exceed a rating of 15 g per m2 (3lbs./ 1000 ft2) over a twenty-four (24) hour period.
.b alkalinity results shall be between a pH rating of 7 and 9. |
.4 Do not install bamboo flooring materials until testing results indicate that all substrate surfaces are properly cured and acceptable for installation of flooring materials. Report any unsatisfactory conditions in writing to the Contractor.
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1.6 Regulatory and Environmental Requirements:
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.1 Comply with all applicable laws, regulations, bylaws, ordinances and orders of any governmental authority dealing with pollution of the environment, toxic and hazardous materials and waste, and other environmental hazards.
.2 Ensure that all materials, including adhesives and other accessory products, [comply with LEED requirements,] are environmentally safe, and are not prohibited by any applicable laws, regulations, bylaws, ordinances or orders of any government authority. .3 Ensure that all employees are fully informed and comply, at all times with Workplace Hazardous Material Information System (WHMIS) requirements. Such compliance shall include but not be limited to: |
.a Training of staff in the proper handling and storage of such materials.
.b Furnishing and use of workplace Material Safety Data Sheets (MSDS) and labels for such materials. |
.4 Environmental sustainability and recycling of bamboo flooring materials:
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.a Bamboo flooring materials used shall be from an environmentally sustainable distribution source.
.b Installations shall use low VOC adhesives and materials. |
1.7 Pre-Installation Site Meeting:
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.1 Before commencement of work on site, the [General Contractor,] [Construction Manager,] flooring Subcontractor, flooring manufacturer's representative and the [Consultant] [Owner] shall meet to discuss the following items:
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.2 Keep minutes of meeting including responsibilities of various parties and deviations from specifications and installation instructions and distribute minutes to attendees within 48 hours.
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1.8 Mock‑Up: (use for large projects or for complicated layouts)
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.1 Prior to installation,
install a sample of each type of bamboo flooring on site to area(s) or room(s)
designated by the Contractor in accordance with site meeting requirements to
show selected materials, colour schemes, pattern / texture, direction of lay,
finish fit to walls and doorways, seam finish, and any other requirements that
apply as well as workmanship.
.2 Following completion, the installation is to be reviewed by the Contractor, flooring contactor, flooring manufacturer's factory / distributor representative, and Consultant. If accepted, the mock-up sample / room(s) shall serve as the “Standard” of workmanship and materials for all other such work. Do not proceed with balance of installation until such approval has been given. |
1.9 Product Delivery, Handling, and Storage
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.1 Deliver
bamboo flooring and other materials (e.g. adhesives,
accessories, etc.) in original
labelled and unopened containers with material information clearly marked on
each container and a minimum of 24 hours before
installation to condition materials to site temperature and humidity conditions.
.2 Handle and protect materials during transportation, storage, and installation by means and methods recommended by manufacturers and in accordance with minimum NFCA requirements so as to prevent damage, breakage, chipping, splitting, staining or other disfigurement. .3 Store all materials in strict accordance with manufacturers written requirements in a secure dry space on site at locations [designated by the Contractor] [pre-approved by the Owner]. |
SPEC NOTE: Sufficient secure, dry, and heated storage space to store floor covering materials, tools and equipment necessary for installation shall be provided by the Contractor or Owner.
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1.10 Installation Requirements:
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.1 Work under this Section shall be limited to that indicated under the scope of work of this trade including the correction and filling of minor imperfections and irregularities with a non-shrinking latex-based patching / levelling compound and sanding it smooth.
.2 It shall be the responsibility of the Contractor to provide conditions acceptable for the installation of bamboo flooring materials. This shall include the provision of floor levels, finish tolerances, and conditions in accordance with manufacturer’s recommendations and minimum requirements of NFCA Part A10 - Acceptable Conditions including the following: |
.a Substrate surfaces within flatness and level tolerances noted in Part A10 - Acceptable Conditions based on using [straightedge] [F-number] values. Where these values are exceeded the substrate surface shall be rectified by the Contractor using a self-levelling cementitious topping before work of this section proceeds.
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SPEC NOTE: Refer to the following table for flatness and level tolerances for concrete as well as wood substrates. Note for suspended concrete slabs use FF value only if F-Number levelness system is used.
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.b Substrate surfaces with a maximum level variation of + 3 mm in 1 metre (1/8” in 10 feet). Where this minimum is exceeded the substrate surface shall be rectified by the Contractor before work of this Section proceeds using a self-levelling cementitious topping.
SPEC NOTE: To ensure the above noted requirement is achieved the level tolerance must be included in the concrete specification and/or a separate cementitious topping specification must be included. Refer to Part D06 - Installation Guide and Part AA6 - Cementitious Underlayment for information. .c Concrete substrates machine trowelled to a smooth level surface that are free of all marks, imperfections or conditions that will telegraph through or damage installed flooring materials. .d Grinding or sanding of ridges, undulations, projections and areas of carbonation and scaling and filling and levelling of expansion joints, cracks, grooves and other irregularities. .e Clean, dry substrate surfaces free of contaminants detrimental to flooring installation (e.g. paint, varnish, oils, release agents, waxes, sealers and curing and hardening compounds not compatible with adhesives employed if flooring is glued down). Surfaces shall be broom cleaned. .f Removal of existing flooring material including adhesive. .g Environmental conditions prior to and immediately after flooring installation meeting the following criteria: |
.i heating, air conditioning and humidity control facilities in operation.
.ii substrate moisture content and alkalinity level within manufacturer’s requirements. New concrete and suspect existing concrete surfaces shall be tested in accordance with NFCA requirements by an independent testing agency in a timely manner arranged by the Contractor with costs paid for by the Owner. .iii environment and substrate temperatures within manufacturer’s requirements. This includes that the temperature of all materials to be installed and areas to receive flooring is maintained at a minimum of 18oC (65oF) and maximum of 30oC (85oF) for at least 48 hours prior to, during, and after installation, and that a minimum temperature of 13oC (55oF) is maintained thereafter. .iv humidity range within manufacturer’s requirements and as a minimum between 35% and 50% assuming an 18oC to 25oC temperature. If humidity is not within this range, postpone installation until conditions are suitable. .v areas to receive flooring shall be vented 24 to 48 hours prior to installation using fresh circulating air and adequate ventilation (for noxious fumes) shall be provided in accordance with WHMIS and WCB requirements. .vi areas to receive flooring shall be provided with adequate illumination (minimum of 538 lux at floor level) in accordance with WCB requirements. Where these minimum requirements are not met they shall be rectified by the Contractor before work of this section proceeds. |
.3 The final type and condition of each substrate shall be in complete accordance with NFCA requirements and the flooring material manufacturer=s installation recommendations.
.4 Condition bamboo flooring within area of installation and all other flooring materials including adhesives for a minimum of three (3) days to avoid potential expansion, contraction, and bonding problems. .5 Consult with and coordinate flooring work and make provisions for all trades in advance to avoid future repairs. Refer to other flooring Sections for interface details and base type where applicable. .6 Install flooring materials only after all other trade work, especially gypsum board and painting, has been completed and all overhead mechanical and lighting work, and other wall-mounted equipment has been installed. .7 DO NOT proceed with installation until all unsatisfactory conditions have been corrected. Notify the Contractor in writing of all defects likely to impair finished work. Start of work implies acceptance of surfaces and conditions. .8 Restrict traffic by trades and others until work is completed and until adhesives and site finishes have fully cured. |
1.11 Submittals:
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.1 All submittals shall be in accordance with the requirements of Section 01 30 00.
.2 Submit manufacturer's product literature, technical data verifying compliance with specification requirements (including adhesive and finishes used), and full range of products and patterns / colours available with sample set for review / selection. .3 Submit duplicate clearly labelled samples of each type of bamboo flooring and finish specified for review. If there is expected to be some appreciable variation due to the nature of the bamboo, submit samples to show the expected range of variation. Approved samples shall be regarded as the standard for quality within the variation of materials and workmanship that may be expected with good quality control. .4 Submit manufacturer's product literature of accessory products and full range set of patterns / colours available, and minimum 100 mm (4") long sample of each type of protective edgings and reducer strips to be used for review / selection and pre‑approval. .5 If required to meet project LEED requirements, submit manufacturer=s documentation as required, including LEED MR6 (Rapidly Renewable Materials) information. .6 Submit shop drawings for review before commencing installation indicating bamboo flooring layout, patterns, fastening methods, and other applicable installation details. .7 At project completion provide flooring manufacturer=s maintenance, cleaning, and care data for bamboo flooring installed for incorporation into [each unit] Owner's maintenance manual. .8 At project completion, provide two percent (2%) of total area or minimum ten (10) square metres (one hundred and ten (110) square feet) from same production run of each type of bamboo flooring installed for Owner=s later use in maintenance. |
1.12 Maintenance Data and Materials:
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.1 Furnish a NFCA Quality Assurance Two (2) year 100% Maintenance Bond on completion of work. The Maintenance Bond shall warrant that the work has been performed in accordance with applicable requirements of the NFCA Quality Assurance Program. The cost of this Maintenance Bond shall be included in this Bid.
.2 Provide a facsimile of the Maintenance Bond together with written proof of ability to furnish same at no cost to the Owner with Bid. |
1.14 Guarantee:
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.1 Provide manufacturers written [twenty (20)] year guarantee against delamination, separation, buckling, or cupping as a result of a manufacturing defect when installed and maintained in accordance with manufacturer's installation instructions.
.2 Provide manufacturers written [five (5)] year guarantee against wear through to the underlying flooring or separation from the flooring as a result of a manufacturing defect when installed and maintained in accordance with manufacturer's installation instructions. |
2 • PRODUCTS
2.1 General:
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.1 All work shall be based on the use of specified materials. Other floor covering and accessory materials may be approved by the Consultant only before Bid Closing providing they meet or exceed the requirements specified herein. Refer to submittal requirements. No other products will be accepted after Bid Closing.
.2 Type and finish of bamboo flooring shall be as selected by the Consultant from manufacturer=s complete range as indicated on Finish Schedules and as noted below. |
2.2 Installation Materials:
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.1 Flooring Underlayment: moisture resistant minimum 6 mm (1/4") thick panel underlayment for wood substrates of type recommended or approved by bamboo flooring manufacturer.
.2 Substrate Filler: smooth trowelling, fast setting, non-shrinking, non-cracking, pre‑mixed filler with Portland cement and polymeric modifiers (white latex) and a minimum compressive strength of [20 MPa (2900 psi)][27.6 MPa (4000 psi)] at 28 days for patching / filling / levelling substrates, type(s) to suit substrate conditions as recommended by adhesive / bamboo flooring manufacturer. .3 Substrate Primers and Sealers: as recommended by bamboo flooring manufacturer. .4 Moisture Retarder Membrane: (for floating installations over concrete without underlayment) to CAN/CGSB‑51.34‑M86, 0.15 mm (6 mil) thick polyethylene film to full length of slab area x maximum standard width to reduce joints with membrane tape. .5 Moisture Barrier Tape: as recommended by moisture barrier manufacturer. .6 Sheathing Paper: (for floating installations over wood substrates) to NFCA requirements, wax vapour barrier type. .7 Acoustical / Isolation Underlayment: (for engineer cork floor installations) moisture resistant nominal 3 to 6 mm (1/8" to 1/4") thick sheet material of type, density, and permeability as recommended or approved by bamboo flooring manufacturer.
.8 Adhesive: [premium][standard] high strength grade, [low VOC (solvent-free)], alkaline and water resistant type specially formulated for glue‑down application of bamboo flooring with type to suit substrate and condition as recommended by both adhesive and bamboo flooring manufacturers. Spread rates for adhesive shall be strictly adhered to. .9 Fasteners: (for mechanically fastened installations only) non-corrosive purpose made nails, staples and machine driven fasteners of types and sizes to suit application requirements as recommended by bamboo flooring manufacturer. .10 Expansion Spacers: removable wood or plastic spacers for use during installation to maintain expansion space. .11 Expansion Joint Strips: cork or other resilient material for installation in voids at perimeter of flooring, width to suit void. |
2.3 Flooring:
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SPEC NOTE: Select appropriate type of bamboo flooring and delete all others.
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.1 Bamboo Flooring: kiln dried and preservative treated bamboo flooring with a maximum moisture content of 7% of following types:
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.a Bamboo Tile Flooring: [insert size and thickness] three ply laminated tile assembly with top face of flat grain horizontal bamboo fillets arranged in [one direction] [parquet pattern] laminated to [bamboo] [MDF] [HDF] fibreboard] core, and a bottom balancing layer of [bamboo] [material selected by manufacturer] complete with square [bevelled] top edges.
.b Solid Vertical Grain Bamboo Flooring: [insert width, length, and thickness] planks consisting of laminated bamboo fillet strips arranged vertically to form solid units without internal voids complete with tongue and groove side joints, eased edges, and [natural] [carbonized] [stained] colour as selected by the Consultant from manufacturers complete or custom range. .c Solid Horizontal or Flat Grain Bamboo Flooring: [insert width, length, and thickness] planks consisting of bamboo fillet strips arranged horizontally laminated to a bamboo core and bottom layer to form a 3-ply solid bamboo unit without internal voids complete with tongue and groove side joints, eased edges, and [natural] [carbonized] [stained] colour as selected by the Consultant from manufacturers complete or custom range. .d Solid Strand Bamboo Flooring: [insert width, length, and thickness] planks consisting of strands / fibres of bamboo and post industrial bamboo waste coated / mixed with a resin binder and laminated under pressure to provide solid material without internal voids that is then milled into planks complete with tongue and groove side joints, eased edges, and [natural] [carbonized] [stained] colour as selected by the Consultant from manufacturers complete or custom range. |
.2 Finish: Flooring to have the following finish:
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.a Factory Finish: [natural] [carbonized] bamboo with a minimum of three clear [gloss] [semi‑gloss] [matte] [water based] polyurethane] finish coats [complete with aluminum oxide or ceramic granules] as recommended by bamboo flooring manufacturer.
.b Factory Stain Finish: stain finish of colour as selected by the Consultant from manufacturers complete or custom range [to match pre-approved sample] with a minimum of three [water based] polyurethane] clear [gloss] [semi‑gloss] [matte] finish coats [complete with aluminum oxide or ceramic granules] as recommended by bamboo flooring manufacturer. .c Site Finish: natural unfinished bamboo ready for sanding and finishing on site after installation with a minimum of three [wax] [gloss] [semi‑gloss] [matte] [stain] [water based] polyurethane] finish coats as recommended, supplied and/or pre‑approved by bamboo flooring manufacturer. |
.3 Performance Requirements: Bamboo flooring shall meet the following minimum physical performance requirements:
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a.
Hardness: (to ASTM D 1037) minimum Janka
rating of 2075 lbs (horizontal natural), 1898 lbs (horizontal carbonized), 1798
lbs (natural vertical), and 1392 lbs (vertical carbonized).
b. Dimensional Stability: (to ASTM D 1037 - dimensional change coefficient) 0.00144. c. Flammability: (to ASTM E 648) Class I Interior Floor Finish rating per NFPA 101. d. Smoke Density: (to ASTM E 622) maximum 270 in flaming mode; 330 in non-flaming mode. e. Compressive Strength: (to ASTM D 3501) minimum 52 MPa (7,600 psi) parallel to grain; 18 Mpa (2,624 psi) perpendicular to grain. f. Tensile Strength: (to ASTM D 3500) minimum 105 MPa (15,300 psi) parallel to grain. g. Slip Resistance: (to ASTM F 1679, English XL test) average dry slip index rating of 0.630. h. Abrasion Resistance: (to ASTM D 4060, CS-17 Taber abrasive wheel test final wear-through) minimum 12,600 cycles. i. Moisture Content: (to ASTM D 4442, Oven Dry Method) average 5.47%. j. Formaldehyde Emissions: (to ASTM E 1333) 0.0127 ppm average. |
2.4 Accessories and Trims:
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.1 Mouldings and Trim: bamboo of species and grade to match flooring, [factory sanded ready for site finishing] [pre-finished to match pre-finished flooring].
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.a Base: 19 mm (3/4") x [63.5 mm (2 1/2")] [89 mm (3 1/2")] high.
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SPEC NOTE: Use the following to cover expansion void at wall openings and edgings and reducer strips where bamboo flooring abuts another type of floor finish.
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.b Quarter Round: 19 mm (3/4").
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.2 Protective Edgings / Reducer Strips: [bamboo matching flooring, [factory sanded ready for site finishing] [pre-finished to match pre-finished flooring]. [extruded [bronze] [aluminum with [mill] [anodized] finish and plain surface, full widths and lengths as required.] with profiles to suit conditions and tapered as required.
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SPEC NOTE: Use the following to cover flooring at doors where wood flooring abuts another type of floor finish only as required.
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.3 Thresholds: [Oak, factory sanded ready for site finishing] [pre-finished to match pre-finished flooring] [extruded [bronze] [aluminum with [mill] [anodized] finish and plain surface], minimum [50 mm (2") wide x lengths required with flat / barrier free accessible profile for interior entrance doors where required.
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3 • EXECUTION
3.1 Preparation:
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.1 Review all conditions to ensure substrate conditions and levels, environmental conditions and work by other trades is acceptable prior to commencing work including moisture content.
.2 Ensure concrete is tested for moisture (and alkalinity if required and that alkalinity is neutralized) in accordance with NFPA recommendations. .3 Ensure plywood subfloor installation meets minimum NFCA requirements. .4 Check substrate levels with a metal straight edge and ensure that they are free from all bumps, ridges and other imperfections detrimental to flooring installation. .5 Remove paint, varnish, oils, release agents, waxes, sealers and curing and hardening compounds not compatible with adhesives employed. .6 Fill substrate low spots, minor cracks, joints and holes with substrate filler to the extent required by scope of work and ensure substrates are free from all bumps, ridges and other imperfections. Feather filler as required to allow for difference in adjacent floor materials. Sand smooth to eliminate all irregularities, bumps, ridges and other imperfections and vacuum clean to provide a surface suitable for bamboo flooring. .7 Seal and prime substrate surfaces if recommended by flooring adhesive manufacturer's recommendations. |
3.2 General Installation Requirements:
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.1 Install all bamboo flooring and accessories using tools, materials, methods and sequence of work as recommended by flooring system / manufacturer and to minimum NFCA requirements.
.2 Install flooring so fields and patterns are developed from centre axis of area covered. Locate centre axis so that no flooring unit is less than one‑half size. |
3.3 Installation of Underlayment:
SPEC NOTE: Use one of the following: |
.1 Install [sheathing paper] [moisture barrier] over concrete slabs-on-grade areas lapping joints 150 mm (6") and seal with tape.
OR .1 Install [acoustical] [resilient] underlayment in strict accordance with flooring manufacturer's written requirements and seal joints with tape. |
3.4 Installation of Bamboo Flooring:
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.1 Install bamboo [tile] [plank] flooring [blind nailed or stapled to] [glued to] [floating on] acceptable substrate to areas and patterns detailed and/or shown on approved shop drawings in strict accordance with flooring manufacturer's directions and to minimum NFCA requirements. All flooring unit joints shall align in both directions.
.2 Unless otherwise indicated, install bamboo plank flooring parallel to long dimension of room, continuous through doorways, and cut to fit all projections with joints straight, true to plane and with minimum half width of plank at perimeters and with variations in shade or pattern disbursed. Stagger end joints from row to row and use cut ends to begin and end following rows. OR .2 Unless otherwise indicated, install bamboo tile flooring [glued to] [floating on] acceptable substrate to areas and patterns detailed and/or shown on approved shop drawings in strict accordance with flooring manufacturer's directions and to minimum NFCA requirements. .3 [Apply adhesive at a 45 degree angle to direction of flooring with no streaks or lumps in adhesive during application over substrate in accordance with manufacturer's instructions. Observe recommended trowel notching, spread rates, open times, and safety precautions, and apply no more adhesive than can be covered with flooring before working time expires. Remove adhesive that has set or that has formed surface film before flooring is embedded and apply a fresh coat of adhesive.] OR .3 [Blind nail or staple tongue and groove plank flooring using nails or staples of size and spacing in accordance with flooring manufacturers requirements. Lay first plank inside chalk line with grooved edge toward wall. Where space between wall and first rows of flooring does not allow room for nail gun, fasten by face nailing, gluing, or pre-drilling and edge nailing by hand with hammer and nail set. Counter-sink finish nails below surface and fill with matching wood putty.] .4 Maintain tight joints at tile and plank interfaces, leaving no more than 0.4 mm space between units. .5 Provide expansion void at perimeter and at vertical interfaces of width and in accordance with manufacturer=s recommendations and to minimum NFCA requirements using temporary spacers / blocking if and as required. .6 Apply flooring units to adhesive with uniform pressure but avoid working adhesive into joints. As installation progresses [and after installation], roll flooring with roller to ensure full adhesion. .7 Remove expansion spacers, install expansion strip if recommended by flooring manufacturer, and install base to cover expansion space. |
3.6 Installation of Bases and Trims:
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.1 Install wood base (and quarter round if required) over expansion void at perimeter of flooring secured to walls using [nails] [screws and plugs] in accordance with NFCA requirements. Ensure base does not contact floor surface and is not secured to it.
.2 Install protective edgings / reducer strips and bamboo thresholds to all exposed bamboo flooring edges and interfaces with other flooring materials and fasten as recommended by the manufacturer and to NFCA requirements. .3 Install metal thresholds at openings and where indicated and attached to adjacent rigid floor surface. Threshold to act as ramp between floor surfaces over expansion space. |
3.7 Site Finishing:
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.1 Site finish bamboo flooring only after
it has been installed and is in place for at least seven (7) days to allow
adhesive to set. Ensure that building
temperature and relative humidity and moisture content of flooring is
maintained within installation parameters before commencing finishing
operations.
.2 Prepare installed bamboo flooring for finishing in accordance with manufacturers requirements. Where required, lightly sand and remove indentations, grease, oil and other defects using multiple grits of sandpaper, scraping, and even sponging and then sanding, including filling prior to third sanding. Perform final sanding or buffing depending on type of finish. .3 Vacuum clean and carry out final review to ensure surfaces contain no glue, marks, oil or uneven sanding. .4 Apply stain in accordance with stain manufacturer's instructions to match pre-approved sample of stained finish. .5 Apply sealer / finish coats to bamboo flooring using method and application rate in strict accordance with manufacturer=s written recommendations to achieve a [matte / satin] [semi‑gloss] [gloss] finish to match pre-approved sample of finished flooring. Unless otherwise noted apply not less than three coats of finish. .6 Where required by finish, buff, sand, and vacuum flooring after each application of finish in strict accordance with finish manufacturer's recommendations. .7 Site finish wood mouldings (base, base shoe, quarter round, reducer strips, etc.) to match finished flooring. |
3.8 Clean-Up:
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.1 On completion remove waste, vacuum clean, and inspect flooring installation for apparent defects and adjust as required. Such cleaning does not include final cleaning for Substantial Performance.
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3.9 Protection:
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.1 Avoid static loads on newly installed flooring until adhesives have thoroughly set.
.2 Do not permit any traffic over installed flooring until site-finish coats have dried and cured (for a minimum period of seven (7) days unless otherwise specified by coating manufacturer.). .3 The overall responsibility for the protection of completed flooring to acceptance by the Owner shall be the responsibility of the General Contractor who shall reasonably prohibit all other work and traffic over flooring and provide a temporary breathable protective covering acceptable to the manufacturer. Do not use non-breathable sheet or film covering that could cause condensation to form. .4 Subsequently remove protective covering and dispose of same and make good defects to flooring installation caused by other trades. |
3.10 Refinishing:
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.1
When refinishing is necessary and the floor has been maintained
properly, it can easily be recoated by a process of cleaning, light abrasion
and a reapplication of an appropriate finish material compatible with existing
finish.
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END OF SECTION