SECTION 09591

RESILIENT HARDWOOD FLOORING

PART 1 GENERAL

SECTION INCLUDES

[[Sheet vapor retardant] [Sheathing paper] on substrate surface.]

[Plywood sheathing and] sleepers on cushion blocks.

Hardwood flooring.

Surface sanding[.] [and finish coating.]

RELATED SECTIONS

Section [_____ - __________:] [[Recessed] concrete subfloor surface][.] [Formed depressions for deep floor [sockets][,] [inserts][,] [and] [_______________].]

Section [_____ - __________:] Wood subfloor surface.

Section [_____ - __________:] Adjacent floor finish edging abutting wood flooring.

Section 09561 - Hardwood Flooring - Adhesive Applied.

Section 09562 - Hardwood Flooring - Nailed.

Section 09570 - Wood Parquet Flooring.

[Section 09900 - Painting: Surface coating to flooring.]

REFERENCES

ALSC - American Lumber Standards Committee.

APA - American Plywood Association.

FS TT-W-571 - Wood Preservation: Treating Practices.

MFMA - Maple Flooring Manufacturers Association.

NFPA - National Forest Products Association.

RIS - Redwood Inspection Service.

SFPA - Southern Forest Products Association.

WCLIB - West Coast Lumber Inspection Bureau.

[WSFI - Wood and Synthetic Flooring Institute.]

WWPA - Western Wood Products Association.

SUBMITTALS

Submit shop drawings under provisions of Section [01300.] [01340.]

Submit shop drawings indicating floor joint pattern, grain direction, and termination details. Indicate provisions for expansion and contraction, base, base corner details, game insert or socket devices[,][.] [and] [_______________.]

[Indicate location, size, design, and color of colored game lines[.] [and] [crest.] [plaque.]]

Submit product data under provisions of Section [01300.] [01340.]

Submit product data for resilient blocks, floor materials [floor coating.] [game [insert] [socket] devices.]

Submit samples under provisions of Section [01300.] [01340.]

Submit [two] [_____] samples [_____x_____] inch ([___x___] mm) in size illustrating floor finish, color, [game line colors,] and sheen.

Submit [MFMA] [__________] certificate under provisions of Section [01400] [01405] that [products] [__________] meet or exceed [specified requirements.] [_______________.]

Submit [manufacturer's] [MFMA] [__________] installation instructions under provisions of Section [01300.] [01340.]

MAINTENANCE DATA

Submit maintenance data under provisions of Section [01700.] [01730.]

Include recommended cleaning and stain removal methods, materials, and waxes.

QUALITY ASSURANCE

Perform Work in accordance with the following:

Lumber Grading Agency: Certified by ALSC.

Plywood Grading Agency: Certified by APA.

[Conform to WSFI - [Cushioned Subfloor Flooring.] [Rubber Cushion-Sleeper Construction Wood Flooring.]]

Maintain [one] [_____] copy of [each] document on site.

QUALIFICATIONS

Manufacturer: Company specializing in manufacturing the products specified in this Section with minimum [three] [_____] years [documented] experience.

Installer: Company specializing in applying the work of this Section [with minimum [_____] years [documented] experience.] [approved by manufacturer.]

REGULATORY REQUIREMENTS

Conform to [applicable] [__________] code for flame spread rating of finished floor surface.

Provide certificate of compliance from [authority having jurisdiction.] [__________.]

DELIVERY, STORAGE, AND HANDLING

Deliver products to site under provisions of Section [01600.] [01610.]

Deliver materials in time to permit moisture content to stabilize to ambient conditions.

Store and protect products under provisions of Section [01600.] [01620.]

ENVIRONMENTAL REQUIREMENTS

Do not install wood flooring until wet construction work is completed.

Do not install flooring until moisture content of concrete subfloor has stabilized at [12] [_____] percent maximum and ambient air at installation space is not less than [65] [_____] degrees F ([18] [_____] degrees C).

Provide permanent heat, light, and ventilation prior to installation.

Maintain minimum room temperature [65] [_____] degrees F ([18] [_____] degrees C) for period of 2 days prior to delivery of materials during and after installation.

PART 2 PRODUCTS

MANUFACTURERS

[______________________________] Product [__________.]

[______________________________] Product [__________.]

[______________________________] Product [__________.]

Substitutions: Under provisions of Section [01600.] [01630.]

WOOD MATERIALS

Flooring: Species and grade stamped on underside of each piece, conforming to the following:

Species:	[White Hard Maple (Acer Saccharum).] Beech (Fagus Gradifolia).] [White Birch (Betula Alleghaniensis).]

Grade:	[First.] [Section and better.][Third and better.] [Third.]

Cut:	[Plain Sawn.] [_______________.]

Moisture Content:	[10 to 13] [_____] percent.

Actual Thickness:	[25/32] [33/32] [41/32] [_____] inch ([20] [26] [32.5] [_____] mm)

Actual Width:	[1-1/2] [2-1/4] [3] [3-1/4] [3-1/2] [_____] inches ([38] [57] [76] [83] [89] [_____] mm)

Edge:	[Tongue and Groove.] [__________.]

End:	[Tongue and Groove.] [__________.]

Length:	[Random.] [_____________________.]

Plywood Sheathing: APA Structural I, Grade [C-D,] [_____,] [sanded,] [unsanded,] [tongue and grooved edges and ends,] [_____] inch ([_____] mm) thick.

Sleepers: Softwood, pressure treated with wood preservative for moisture protection to [FS TT-W-571;] [__________;] conforming to the following:

Lumber Grading Rules:	[NFPA.] [RIS.] [SFPA.]

[WCLIB.] [WWPA.] [_____.]

Species:	[________________________.]

Grade:	[________________________.]

Maximum Moisture Content

After Treatment:	[15] [_____] percent.

Nominal Size:	[2 x 3] [__________] inch

([50 x 75] [_____] mm).

BASE MATERIALS

Ventilating Base: Molded rubber, [_____] inch ([_____] mm) high with a [_____] inch ([_____] mm) toe, ventilating type, with adhesives and accessories, [black] [brown] [_____] color[;] [as selected;] [__________] as manufactured by [____________________.]

****** [OR] ******

Ventilating Base: Extruded aluminum, [_____] inch ([_____] mm) high with a [_____] inch ([_____] mm) toe, ventilating type, with attachment accessories, [welded] [fabricated] corner intersections, [mill finish;] [anodized finish to [_____] color [as selected;]] [__________] as manufactured by [____________________.]

ACCESSORIES

Cushion Blocks: Resilient pads, [rubber] [PVC] [_____] material, [sealed] [unsealed] air [channels] [slots] [__________] for resiliency, compressible to 1/16 inch (1.5 mm) under a [40] [_____] psi ([275] [_____] KPa) load with full and immediate recovery.

Perimeter Springs: Flat spring steel, leaf shaped, with attachment clips, [0.093 x 1 x 9] [_____x_____x_____] inch ([_____x_____x_____] mm) size.

Divider Strip: [Angle,] [Tee,] [mill finish] [anodized] aluminum to [__________] profile[.] [recommended by manufacturer.]

Threshold: Extruded, [mill finish] [anodized] aluminum to [__________] profile[.] [recommended by manufacturer.]

Sheet Vapor Retardant: [8] [_____] mil ([0.2] [_____] mm) thick, black polyethylene, with 2 inch (50 mm) wide self adhesive, reinforced tape for lap joint sealing.

Sheathing paper: [Waxed Kraft paper] [[Asphalt impregnated] [Plain] building paper] [[4] [_____] mil ([0.10] [_____] mm) polyethylene.] [_______________.]

Nails: [Type recommended by flooring manufacturer.] [Hardened steel barbed type for use with a power driver.] [____________________.]

Sleeper Anchor: [____________________.]

Threshold: [____________________.]

Game [Socket] [Insert] Devices: [_______________.]

FINISHES

Floor Finish Coating: [Two component polyurethane,] [Varnish,] [_______________,] type recommended by flooring manufacturer.

****** [OR] ******

Floor Finish Coating: Refer to Section 09900.

Marking Paint: [____________________] type.

****** [OR] ******

Marking Paint: Refer to Section [09900.] [_____.]

PART 3 EXECUTION

EXAMINATION

Verify that surfaces are ready to receive work.

Verify that [recessed] subfloor surface is smooth and flat[.] [to a tolerance of [3/16] [_____] inch per 10 feet ([4] [_____] mm per 3 m) maximum.]

[Verify that concrete substrate moisture content is [15] [_____] percent maximum.]

Beginning of installation means installer accepts existing surfaces.

PREPARATION

Broom clean substrate.

INSTALLATION - FLOORING

Place [sheathing paper, lap edges and ends 2 inches (50 mm), staple in place.] [vapor retardant, lap edges and ends 6 inches (150 mm), tape seal and [staple] [spot glue] in place.]

Secure cushion blocks to underside of sleepers at [_____] inches ([_____] mm) oc and at each end.

Over the vapor retardant, lay sleepers end to end across short dimension of room at [12] [_____] inches ([300] [_____] mm) oc with joints staggered a minimum of 24 inches (600 mm). Shim sleepers to level line. [Place sheathing paper, lap edges and ends 2 inches (50 mm), staple in place.]

****** [OR] ******

Lay sleepers end to end across short dimension of room at [12] [_____] inches ([300] [_____] mm) oc with joints staggered a minimum of 24 inches (600 mm). Shim sleepers to level line. Place [sheathing paper, lap edges and ends 2 inches (50 mm), staple in place.] [vapor retardant, lap edges and ends 6 inches (150 mm), tape seal and staple in place.]

Provide [_____] inch ([_____] mm) expansion space for each foot of board surface width, at walls and other interruptions.

Install springs within perimeter expansion space voids at [24] [_____] inches ([600] [_____] mm) oc.

Place one layer of plywood sheathing over the sleepers. Lay at right angles to the sleepers and nail at [12] [_____] inches ([300] [_____] mm) oc. [Place a layer of sheathing paper over the sheathing lapping edges and ends 2 inches (50 mm), staple in place,]

****** [OR] ******

Place two layers of plywood sheathing over sleepers.	Lay the first layer at right angles to the sleepers and nail at [12] [_____] inches ([300] [_____] mm) oc. [Place sheathing paper between plywood sheathing layers lapping edges and ends 2 inches (50 mm), staple in place.] Lay the second layer at right angles to the first layer but with joints over and parallel to the sleepers. [Place sheathing paper over the plywood sheathing lapping edges and ends 2 inches (50 mm), staple in place.]

Lay flooring [strips] [planks] parallel to [length] [width] of room areas with joints set flush and tight.

[Predrill and blind] [Clip and] nail flooring [with a power driver] in accordance with manufacturer's instructions.

INSTALLATION - ACCESSORIES

Provide [divider strips] [threshold] [at centerline of door openings][.] [and] [where flooring terminates with other floor areas.]

Install base at floor perimeter to cover expansion space[.] [in accordance with manufacturer's instructions.] Miter inside and outside corners.

Install floor [sockets] [inserts] [cover plates] [and] [_______________] to a depth sufficient to ensure flush top surface with sanded floor surface.

FINISHING

Sand flooring to smooth even finish with no evidence of sander marks. Take precautions to contain dust. Remove dust by vacuum.

Mask off adjacent surfaces.

Apply [three] [_____] finish coats [and game lines] in accordance with floor finish manufacturer's instructions.

Apply first coat, allow to dry and buff with steel wool to remove irregularities. Vacuum clean and wipe with damp cloth.

Apply second [and successive] [coat.] [coats.] Allow to dry. Lightly buff with steel wool and vacuum clean.

[Apply colored game lines [2] [_____] inches ([50] [_____] mm) wide [and] [crest] [plaque] to [layout indicated on [Drawings.] [shop drawings.]] [_________________________.]]

Apply last coat of finish.

SCHEDULE

Gymnasium 103: White maple, equal length strip, staggered joint, fastened to two layers of plywood sheathing, nailed to sleepers, placed over vapor retardant, over concrete subfloor, three coat urethane finish with basketball and volleyball colored game lines.

Exercise 108: White birch, unequal length plank, nailed to sleepers, set on sheathing paper over plywood subfloor.

END OF SECTION