USACE / NAVFAC / AFCESA / NASA UFGS-09 64 23 (April 2006)
--------------------------
Preparing Activity: USACE Replacing without change
UFGS-09645 (November 2003)
UNIFIED FACILITIES GUIDE SPECIFICATIONS
References are in agreement with UMRL dated January 2009
SECTION 09 64 23
WOOD PARQUET FLOORING
04/06
NOTE: This guide specification covers the requirements for wood parquet flooring
systems.
Edit this guide specification for project specific requirements by adding, deleting,
or revising text. For bracketed items, choose applicable items(s) or insert
appropriate information.
Remove information and requirements not required in respective project, whether
or not brackets are present.
Comments and suggestions on this guide specification are welcome and should
be directed to the technical proponent of the specification. A listing of technical
proponents, including their organization designation and telephone number, is
on the Internet.
Recommended changes to a UFGS should be submitted as a Criteria Change Request
(CCR).
PART 1 GENERAL
NOTE: On the drawings, show:
1. Location and extent of wood parquet flooring.
2. Where flooring is to be installed on concrete slab, indicate elevation of
the top(s) of concrete slab.
3. Locations of equipment, columns, and other permanent obstructions adjoining
flooring and around which flooring is to be laid.
4. Floor pattern that differs from conventional checkerboard pattern and is
not defined by file sample.
5. Profile of shoe mold.
1.1 REFERENCES
NOTE: This paragraph is used to list the publications cited in the text of
the guide specification. The publications are referred to in the text by basic
designation only and listed in this paragraph by organization, designation,
date, and title.
Use the Reference Wizard's Check Reference feature when you add a RID outside
of the Section's Reference Article to automatically place the reference in the
Reference Article. Also use the Reference Wizard's Check Reference feature
to update the issue dates.
References not used in the text will automatically be deleted from this section
of the project specification when you choose to reconcile references in the
publish print process.
The publications listed below form a part of this specification to the extent referenced. The publications are
referred to within the text by the basic designation only.
[APA - THE ENGINEERED WOOD ASSOCIATION (APA)APA E30(2005) Engineered Wood Construction Guide][ASTM INTERNATIONAL (ASTM)ASTM D 226(2006) Standard Specification for Asphalt-Saturated Organic Felt Used in Roofing and WaterproofingASTM E 1333(1996; R 2002) Determining Formaldehyde Concentrations in Air and Emission Rates from Wood Products Using a Large ChamberASTM E 648(2008a) Standard Test Method for Critical Radiant Flux of Floor-Covering Systems Using a Radiant Heat Energy Source][HARDWOOD PLYWOOD AND VENEER ASSOCIATION (HPVA)HPVA EF(2002) American National Standard for Engineered Wood Flooring][NOFMA: THE WOOD FLOORING MANUFACTURERS ASSOCIATION (NOFMA)NOFMA Grading Rules(1999) Official Flooring Grading Rules]1.2 SUBMITTALS
NOTE: Review submittal description (SD) definitions in Section 01 33 00 SUBMITTAL
PROCEDURES and edit the following list to reflect only the submittals required
for the project. Submittals should be kept to the minimum required for adequate
quality control.
A “G” following a submittal item indicates that the submittal requires Government
approval. Some submittals are already marked with a “G”. Only delete an existing
“G” if the submittal item is not complex and can be reviewed through the Contractor’s
Quality Control system. Only add a “G” if the submittal is sufficiently important
or complex in context of the project.
For submittals requiring Government approval on Army projects, a code of up
to three characters within the submittal tags may be used following the "G"
designation to indicate the approving authority. Codes for Army projects using
the Resident Management System (RMS) are: "AE" for Architect-Engineer; "DO"
for District Office (Engineering Division or other organization in the District
Office); "AO" for Area Office; "RO" for Resident Office; and "PO" for Project
Office. Codes following the "G" typically are not used for Navy, Air Force,
and NASA projects.
Choose the first bracketed item for Navy, Air Force and NASA projects, or choose
the second bracketed item for Army projects.
Government approval is required for submittals with a "G" designation; submittals not having a "G" designation
are for [Contractor Quality Control approval.][information only. When used, a designation following the "G"
designation identifies the office that will review the submittal for the Government.] The following shall be
submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:
SD-03 Product Data
Hardwood Parquet Flooring
Manufacturer's descriptive data, documentation stating physical characteristics and flame
resistance, and installation instructions.
SD-04 Samples
Hardwood Parquet Flooring
[Two] [_____] samples of each type of parquet flooring. Samples shall be minimum 300 x 300
mm 12 x 12 inches.
SD-07 Certificates
Flooring Materials[; G][; G, [_____]]
Statement from the manufacturer attesting that the materials meet the specified requirements.
The statement must be dated after the award of the contract, must state the Contractor's name
and address, must name the project and location, and must list the specific requirements being
certified.
SD-08 Manufacturer's Instructions
Adhesive
Finish
Premolded cork strips
Polyurethane coating
Wax Finish
Include manufacturer's material safety data sheets for adhesives, finishes, and other materials
which may be considered hazardous because of toxicity, flammability, or reactivity.
SD-10 Operation and Maintenance Data
Flooring Materials[; G][; G, [_____]]
Data Package 1 in accordance with Section 01 78 23 OPERATION AND MAINTENANCE DATA.
1.3 DELIVERY AND STORAGE
Deliver materials to the building site in original, unopened packages, bundles, or containers. Protect materials
against dampness during shipment and after delivery. Store materials under cover in a well ventilated building
where materials will not be exposed to extreme changes of temperature and humidity. Do not store materials in
buildings under construction until all wet-applied building materials are dry. Do not open packages, bundles,
or containers until the flooring is to be installed. Remove rejected material from Government property.
1.4 ENVIRONMENTAL CONDITIONS
NOTE: Control of temperature and humidity prior to laying flooring is necessary
to prevent buckling and cupping. Since climatic conditions vary due to geographical
location and the trend is toward natural ventilation for energy conservation,
it is imperative to check with flooring manufacturer and local installers to
determine correct temperature and humidity ranges for the project area.
Store the parquet flooring in the building or space where the parquet flooring is to be laid for a minimum of
3 days to allow absorbed moisture to evaporate. Separate the wood parquet so that all pieces are exposed to
the air during this 3-day period to allow uniform acclimation. Maintain the temperature of the building or space
between [21 and 10] [[_____] and [_____]] degrees C [70 and 50] [[_____] and [_____]] degrees F, and maintain
the relative humidity between [30 and 65] [[_____] and [_____]] percent. Maintain the preceding temperatures
and humidity conditions throughout the installation period.
1.5 SCHEDULING
Parquet flooring work shall be scheduled after completion of any other work which would raise the moisture content
of the flooring or damage the finished surface of the flooring.
1.6 WARRANTY
Manufacturer's standard performance guarantees or warranties that extend beyond a one-year period shall be provided.
PART 2 PRODUCTS
2.1 FLOORING MATERIALS
NOTE: Selection of the type of flooring to be used should be based on the appropriate
project design requirements, availability, and relative cost. The method of
specifying the pattern is optional, but the "file sample" is recommended for
projects for which the design is sensitive.
Acrylic impregnated hardwood floors are recommended for commercial type facilities.
Prefinished urethane and stain/wax prefinishes are normally for residential
or light commercial usage.
Choice of critical radiant flux level as it applies to building type and area
of application will be made in accordance with the latest edition of MIL-HDBK
1008B or NFPA 101. Wherever the use of Class II (0.22 watts) finish is required,
Class I (0.45 watts) will be permitted.
Critical radiant flux will be a minimum average of 0.45 watts when used in corridors
in bachelor enlisted quarters, bachelor officer quarters, hospital, child care
centers, temporary lodging facilities, and new construction detention and correctional
facilities. Generally the critical radiant flux will be a minimum of 0.22 for
corridors of other type facilities. Where an approved automatic sprinkler system
is installed, Class II interior floor finish may be used where Class I floor
finish is required, and where Class II is required, no critical radiant flux
rating is required. Omit sentence if not applicable.
Hardwood parquet flooring shall conform to NOFMA Grading Rules. [The flooring shall match the color and pattern
of the sample on file at the office of the Contracting Officer.] [Pattern shall be [_____] [as indicated].]
Flooring shall contain no more than 0.02 parts per million of formaldehyde when tested in accordance with ASTM E 1333
. Hardwood flooring in corridors and exits shall have a minimum average critical radiant flux of [0.22] [0.45]
watts per square centimeter when tested in accordance with ASTM E 648.
2.1.1 Laminated Block Flooring
NOTE: The species are listed in descending order of wear resistance and hardness.
Limit the species, based on quality required and compatibility with color desired
or selected for the file sample. Size of units will depend on pattern selected
and should be stated.
HPVA EF, plain face, factory finished. Fabricate face veneer of each block from [hard maple,] [red oak,] [white
oak,] [birch,] [ash,] [beech,] [walnut,] [or] [cherry]. Flooring units shall be [_____] mm inches by [_____]
mm inches.
2.1.2 Slat Block Flooring
NOTE: The species are listed in descending order of wear resistance and hardness.
Limit the species, based on quality required and compatibility with color desired
or selected for the file sample. Size of units will depend on pattern selected
and should be stated.
APA E30, unfinished, Select and Better Grade, fabricated from [hard maple,] [teak,] [red oak,] [white oak,] [ash,]
[walnut,] [or] [cherry]. Provide finishing at the site as specified herein. Flooring units shall be [_____]
mm inches by [_____] mminches.
2.1.3 Solid Block Flooring
2.1.3.1 Grading
NOTE: The species are listed in descending order of wear resistance and hardness.
Limit the species, based on quality required and compatibility with color desired
or selected for the file sample. Size of units will depend on pattern selected
and should be stated.
[[Red oak] [or] [white oak] fabricated into [prime] [Standard and Better]] [or] [[hard maple,] [beech,] [or]
[birch] fabricated into [First] [Second and Better]] Grade blocks, free from defects and discolorations. Blocks
shall be graded in accordance with the rules of the association governing the grading of the species used.
2.1.3.2 Construction
NOTE: Quarter-sawn oak and edge-grain maple wear better, but the plain-sawn
and flat-grain cuts are adequate and should be allowed for most projects.
[Oak shall be quarter-sawn [or plain-sawn].] [Maple shall be edge-grain [or flat-grain].] Fasten the strips
composing each block together tightly in a manner that will maintain the integrity of the block. Each block
shall have a standard flooring tongue or corresponding matching grooves on each of the four edges, so arranged
that the blocks can be laid in the conventional checkerboard pattern with the strips of each block at right angles
to the strips of the adjacent blocks. The back of each strip in the block may be flat or channeled. Face edges
of blocks shall not be beveled.
2.1.3.3 Dimensions
NOTE: When red or white oak is specified, specify tolerances of plus or minus
0.80 mm (1/32 inch) in length and plus or minus 0.40 mm (1/64 inch) in width.
When other species are specified, use first bracketed phrase.
Blocks shall be 228.6 mm 9 inches square [plus or minus 0.40 mm 1/64 inch in length and width] [plus or minus
0.80 mm 1/32 inch in length and plus or minus 0.40 mm 1/64 inch in width] and shall be not less than 19 mm 3/4-inch
thick. The length of the face diagonals of each block shall be within 0.80 mm 1/32 inch to ensure squareness.
2.1.3.4 Moisture Content
Not less than 5 percent or more than 12 percent at time of shipment.
2.1.3.5 Finish
[Apply finish at the factory.] [Ship flooring to the site with a smooth surface without applied finish. Provide
finish specified herein at the site.]
2.1.4 Premolded Cork Strips
Cork strips shall be the same depth as the flooring and of width recommended by flooring manufacturer.
2.1.5 Accessories and Supporting Materials
2.1.5.1 Wax Finish
As recommended by flooring manufacturer.
2.1.5.2 Asphalt Saturated Felt
ASTM D 226.
2.1.5.3 Adhesive
Waterproof, suitable for use with [subflooring] [underlayment] used, and as recommended by flooring manufacturer.
2.1.5.4 PRIMER
Primer shall be of a type recommended by flooring manufacturer.
2.1.5.5 Shoe Molds
[Hard maple,] [red oak,] [white oak,] [ash,] [beech,] [birch,] [walnut,] [or] [cherry]. Shape and size as indicated.
Shoe molds shall be prefinished to match flooring.
2.2 FLOORING SYSTEMS
NOTE: Select flooring system to be used.
2.2.1 Flooring on Concrete Slabs
The system shall consist of the application of block flooring on concrete slabs by means of adhesive.
2.2.2 Flooring on [Subflooring] [Underlayment]
The system shall consist of the application of block flooring on [subflooring] [underlayment]. The provision
of [subflooring] [underlayment] is specified in Section [_____]. The application of block flooring shall be
by means of [nails] [adhesive].
PART 3 EXECUTION
3.1 PREPARATION OF SURFACES
NOTE: If flooring is to be applied on slab-on-ground construction, site grading
and drainage should be such that water will not collect under slab. A polyethylene
vapor barrier of not less than 0.15 mm (6 mils) thick and at least 150 mm (6
inches) of porous fill consisting of clean, washed gravel graded from 19 to
38 mm (3/4 inch to 1-1/2 inch) sizes should be specified in Division 3. A single-ply,
asphalt-saturated felt or 0.15 mm (6 mil) polyethylene film set in asphalt may
be applied to top of slab if acceptable to flooring manufacturer. Add to this
paragraph, if warranted.
3.1.1 Concrete Slabs
Do not install flooring on surfaces that are unsuitable for proper installation. Before work is begun, defects
such as rough or scaling concrete, low spots and high spots, and uneven surfaces shall be corrected, and all
damaged portions of concrete slabs shall be repaired. If concrete curing compounds or surface sealers have been
applied to the concrete slabs, the compounds and sealers shall be removed from the slabs by an approved method.
Concrete slabs shall be level [within tolerance specified in the Section [03 31 00.00 10 CAST-IN-PLACE STRUCTURAL
CONCRETE][03 30 00 CAST-IN-PLACE CONCRETE]] [within a tolerance of 2 mm/meter 0.25 inch per 10 feet.]
3.1.2 [Underlayment] [Subflooring]
Repair damaged portions, and replace defective boards with sound boards; renail loose or warped boards, and drive
protruding or loose nails flush.
3.1.3 Adhesive-Applied Wood Flooring on Concrete Slab
Clean concrete floor slabs that are to receive flooring. Remove spots of [paint,] [plaster,] [masonry droppings,]
grease, dirt, and other foreign matter.
3.1.4 Nailed Wood Flooring on [Subflooring] [Underlayment]
Cover [subflooring] [underlayment] over which nailed wood flooring is to be laid with a layer of asphalt saturated
felt. Lap all edges at least 50 mm 2 inches.
3.1.5 Adhesive-Applied Wood Flooring on [Subflooring] [Underlayment]
Prepare [subflooring] [underlayment] in accordance with the printed instructions of the flooring manufacturer.
3.2 INSTALLATION
Do not install flooring until other work that might cause damage to flooring has been completed, until all wet
work is completed and has cured for [14] [_____] days, and until exterior openings are closed. New concrete
slabs to receive flooring shall have a 60-day minimum cure before application of flooring. Perform flooring
installation, including sanding and finishing, in conformance with manufacturer's printed instructions. Provide
mechanical ventilation of area receiving flooring as required to maintain concentrations of toxic gases and explosive
vapors below permissible levels.
3.2.1 Flooring on Concrete Slabs
Apply block flooring on concrete slabs in accordance with the flooring manufacturer's printed instructions.
3.2.2 Flooring on [Subflooring] [Underlayment]
NOTE: Wood or plywood subflooring or hardboard underlayment should be specified
in Section 06 10 00 ROUGH CARPENTRY of the project specifications.
[In applying wood blocks with nails, lay blocks with close joints when nailing to [subflooring] [underlayment].
Drive blocks firmly together, and blind-nail each block.] [In applying block flooring with an adhesive, use
the materials and follow the methods stipulated in the manufacturer's printed instructions.]
3.2.3 Expansion Spaces
Provide expansion spaces at walls and partitions. Expansion spaces shall be of size as recommended by flooring
manufacturer. Install premolded cork strips in expansion spaces in accordance with flooring manufacturer's directions.
[3.2.4 Shoe Molds
Nail shoe molds to baseboards. [Baseboards are specified in Section [_____].]
]3.3 SANDING AND FINISHING [SLAT] [SOLID] BLOCK FLOORING
NOTE: Coordinate these requirements with Section 09 90 00 PAINTS AND COATINGS
of the project specifications.
If prefinished flooring is used, delete this paragraph.
3.3.1 Sanding
Sand and buff floors to smooth and level surface, free of sanding marks and in proper condition to receive the
finish specified. After final sanding and buffing, vacuum or tack floors in accordance with finish manufacturer's
recommendations. Wipe off foot marks.
3.3.2 Finishing
After final sanding and buffing have been completed, apply two coats of finish; use polyurethane coating recommended
by flooring manufacturer for type and specie of wood flooring specified.
When floors are dry, apply two coats of wax, unless otherwise recommended in writing by manufacturer of flooring.
Spread at rate of 0.07 L/10 square meters one gallon per 1,500 square feet. Within 15 to 30 minutes after wax
application, polish floors with weighted floor brush or electric polisher.
3.4 PROTECTION
After completion of laying [and the finishing and drying] of floors, cover flooring immediately with nonstaining
kraft building paper. Edges of paper shall be lapped and taped. At project completion and acceptance, carefully
take up and remove the protective paper.