Add_2_SECTION_12_36_00_COUNTERTOPS.pdf

MAHG10-1032

SECTION TABLE OF CONTENTS

DIVISION 12 - FURNISHINGS

SECTION 12 36 00

COUNTERTOPS

1.1 SUBMITTALS

Government approval is required for submittals with a "G" designation; submittals not having a "G" designation are for Contractor Quality Control approval. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Fabrication; G

Installation Drawings; G

SD-03 Product Data

Solid Polyster Resin Cultured Marble; G

Adhesives; G

Filler Material; G

Fasteners; G

Service Fixtures; G

Accessories and Hardware; G

04 Samples

Countertop; G

Backsplash; G

Manufacturer's Standard Color Charts; G

SD-08 Manufacturer's Instructions

Manufacturer's Instructions; G

1.2 DELIVERY, STORAGE, AND HANDLING

Deliver, store, and handle countertops and backsplash in a manner that will prevent damage and disfigurement.

Provide temporary skids under units weighing more than 300 pounds.

Section 12 36 00_1-5

1.3 DESIGN

Provide factory fabricated, prefinished Solid Polyester Resin Cultured Marble countertops to match existing sizes and in the Manufacturer’s Standand finishes of type, design, and configuration.

Construct countertops as specified and meet the requirements of KCMA A161.1 (2000 Performance & Construction Standards for Kitchen and Vanity Cabinets).

Accomplish fastenings to permit removal and replacement of individual units without affecting the remainder of the installation. Provide counters with watertight sink rim when indicated.

PART 2 PRODUCTS

2.1 GENERAL

Submit manufacturer's standard color charts for countertops showing the manufacturer's recommended color and finish selections.

Submit manufacturer's instructions for countertops including special provisions required to install equipment components and system packages. Include all special notices detailing impedances, hazards and safety precautions.

Provide the manufacturer's standard type countertops or as indicated on the drawings. Accomplish fastenings to permit removal and replacement of individual countertops without affecting the remainder of the installation.

2.2 MATERIALS

Provide fasteners conforming to the following:

Screws: ASME B18.6.1, Group, Type and Class as applicable

Anchoring Devices: FS FF-S-325, Group, Type, and Class as applicable Toggle Bolts: FS

FF-B-588, Type I, Class A, Style 2

Nuts: ASTM F594, corrosion-resistant steel

Bolts: ASTM A325, heavy, hexagon head bolts corrosion-resistant steel Nuts:

ASTM F836M, corrosion-resistant steel

Bolts: ASTM A325M, heavy, hexagon head bolts corrosion-resistant steel

Provide service fixtures as specified in the SOW conforming to the plumbing specification requirements (contractor to ensure compatibility):

2.3 COUNTERTOP AND BACKSPLASH FABRICATION

2.3.2 Solid Polyester Resin Cultured Marble Countertops

Construct countertop and backsplash with integral sink and lavatory of sheet material for sink/lavatory cutout; as shown. Use material of 3/4 inch thickness minimum, cast, and filled nonporous solid surfacing composed of polyester resin crushed marble, glass frit, mineral fillers and pigments. Material is to comply with IAPMO Z124.3 and the following performance requirement; Flammability: Class I, flame spread of 25 maximum, smoke developed of 100 maximum when tested in accordance with ASTM E84.

Section 12 36 00_2-5

2.5 ACCESSORIES AND HARDWARE

2.5.1 Mounting Adhesives

Provide structural-grade silicone or epoxy adhesives of type recommended by manufacturer for application and conditions of use.

Provide spacers, if required, of type recommended by adhesive manufacturer.

2.5.2 Joint Sealants

Use clear silicone sealant of type recommended by manufacturer for application and conditions of use.

Provide anti-bacterial type.

2.5.3 Solvent

Use a product recommended by adhesive manufacturer to clean surface of quartz surfacing to assure adhesion of adhesives [and sealants].

2.5.4 Cleaning Agents

Use non-abrasive, soft-scrub type kitchen cleaners.

2.6 COLOR, TEXTURE, AND PATTERN

Select color from manufacturers standard colors.

PART 3 EXECUTION

3.1 INSTALLATION

Inspect material for defects prior to installation. Ensure materials throughout bear labels with the same batch number. Visually inspect materials used for adjacent pieces to assure acceptable color match. Inspect in lighting conditions similar to those on the project. Repair or replace damaged materials in a satisfactory manner.

Install countertops plumb with cabinetry level to within 1/16 inch in 10 feet. Scribe and fit scribe strips to irregularities of adjacent surfaces. Gap openings exceeding 0.025 inch are not acceptable.

Secure countertops to cabinetry and wall construction using 1/4-inch diameter masonry anchors spaced 30 inches maximum on center.

Submit installation drawings for countertops. Ensure drawings include location of cabinets, details of cabinets related and dimensional positions, and locations for roughing in plumbing, including sinks, faucets, strainers and cocks.

3.1.1 Preliminary Installation and Adjustment

Install materials in accordance to manufacturer's recommendations. Lift and place to avoid breakage.

Position materials to verify that materials are correctly sized and prepared. Make necessary adjustments.

If jobsite cutting, grinding, or polishing is required, use water-cooled tools. Protect jobsite and surfaces against dust and water. Perform work away from installation site if possible.

Section 12 36 00_3-5

Gypsum drywall back walls which are not fire or acoustically rated may be routed up to half the thickness of the drywall to allow countertop to fit.

Shim countertop drainage adjacent to sinks and where drainage is required, slightly to insure positive drainage.

]3.1.2 Permanent Installation

After verifying fit, remove countertop and backsplash from position, clean substrates of dust and contamination, and clean countertop and backsplash back sides and joints with solvent.

Apply sufficient quantity of mounting adhesive in accordance with adhesive manufacturer's recommendations to provide permanent, secure installation.

Spacing of mounting adhesive will not exceed:

Horizontal Surfaces: 3 inch on center

Vertical Surfaces: 3 inch on center; provide temporary shims until adhesive cures.

Install surfacing plumb, level, and square and flat to within 1/6 inch in 10 feet.

3.1.3 Joints

Ensure joints between adjacent pieces of countertop are:

Flush, tight fitting, level, and neat.

Securely join with adhesive. Fill joints level with countertop/backsplash surface.

Clamp or brace countertop/backsplash in position until adhesive sets.

Joints between backsplashes and countertops: Seal joints with silicone sealer.

3.2 CLEANING

On completion of cabinet installation, touch up marred or abraded finished surfaces. Remove crating and packing materials from premises. Wipe down surfaces to remove fingerprints and markings and leave in clean condition.

3.3 INSPECTION

Examine casework grounds and supports for adequate anchorage, foreign material, moisture, and unevenness that could prevent quality casework installation.

Ensure that electrical and plumbing rough-ins for casework are complete. Do not proceed with installation until defects are corrected.

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Section 12 36 00_4-5