SECTION 09680
CARPET
PART 1 - GENERAL
1.1 SUMMARY
A. Section Includes:
1. Preparation of surfaces to receive carpeting.
2. Carpet
a. Furnished by Owner, installed by Contractor
b. Stretch-in Installation, unless noted otherwise
3. Carpet Cushion
a. Furnished by Owner, installed by Contractor
4. Accessories, including tack strips, adhesives tapes and all other required accessories.
5. Transition edges
6. Carpet stair nosings
B. Related Documents:
1. Drawings and General Provisions of Contract, including General and Supplementary Conditions and other Division 1 Specification Sections, apply to this Section.
2. Seam Layout Drawings provided by Owner.
C. Related Sections:
1. Section 03300 - Cast-in-Place Concrete
2. Section 09650 - Resilient Flooring
1.2 REFERENCES
A. FS DDD-C-0095 Carpet and rugs, wool, nylon, acrylic, modacrylic, polyester, polypropylene
B. CRI 104 Carpet Installation Standard
1.3 SUBMITTALS
A. Submit “Letter of Conformance” in accordance with Section 01330.
B. A copy of the manufacturer's printed installation manual shall accompany Bid for review and approval by the Owner's Representative.
C. Shop Drawings showing layout and seaming diagrams. Indicate pile or pattern direction and locations and types of edge strips. Indicate columns, doorways, enclosing walls or partitions, built-in cabinets, and locations where cutouts are required in carpet. Show installation details at special conditions.
1.4 QUALITY ASSURANCE
A. Installer Qualifications: Firm with not less than 5 years of experience in installation of commercial carpeting of type, quantity, and installation methods similar to work of this Section, and is certified by the floor covering installation board, or can demonstrate compliance with its certification program requirements.
B. Successful vendor shall be responsible for field measurements to determine carpet layout.
C. All products shall comply with the Carpet and Rug Institute Indoor Air Quality Testing Program (Green Label).
D. Carpet Surface Burning Characteristics: Provide carpet identical to that tested for the following fire performance characteristics, per test method indicated below, by UL, ASTM, E 648, or other testing and inspecting organizations acceptable to authorities having jurisdiction. Identify carpet with appropriate markings of applicable testing and inspecting organization.
1. Test Method: DOC FF 1-70
2. Rating: Pass
E. The carpet contractor is responsible for reviewing carpet manufacturer's published installation instructions prior to installation. This includes understanding dye lots, pattern sequencing, pattern matching and any special instructions. Failure to abide by the manufacturer's instructions could result in a backcharge to contractor for corrections to the installation.
F. Contractor is responsible for damages to work performed by others including but not limited to telephone or television wires placed in front of the tack-strip running the perimeter of the room.
G. The installation contractor is responsible for verification of quantities within fourteen (14) days on new construction. The contractor shall provide take-offs of all carpet and padding, as required for a complete installation. No compensation will be allowed to the installation contractor for materials and labor that may be required to install additional carpeting because of incorrect quantity takeoffs.
1.5 DELIVERY, STORAGE, AND HANDLING
A. General: Comply with CRI 104, Section 5, “Storage and Handling”.
B. Do not deliver carpet until areas of building are ready for carpet installation. Provide protection from loss or damage.
C. All carpet, when delivered to the jobsite, shall have manufacturer's sealed registered number tags attached and intact. The registered tags are to be applied at the carpet mill and should bear complete information and specifications of the carpet. Manufacturer shall send at time of shipment a letter containing registration number and complete carpet specification.
D. Store materials in original undamaged packages and containers, inside well-ventilated, dry area protected from weather, moisture, soilage, extreme temperatures and humidity. Lay flat, blocked off ground. Maintain minimum temperature of 68 degrees F. (20 degrees C.) at least three days prior to and during installation in area where materials are stored. Never stack carpet more than two rolls high or stand up on roll ends on job site. Do not bend or fold carpet in storing.
E. Carpet shall never be stacked more than five (5) rolls high.
F. It is recommended that carpet be spread and allow to condition in the area it is to be installed 24 hours prior to installation
1.6 PROJECT CONDITIONS
A. General: Comply with CRI 104, Section 6.1, “Site Conditions, Temperature and Humidity”.
B. Do not commence with carpet installation until painting and finishing work is complete and ceilings and overhead work has been tested, approved, and completed.
C. In areas to receive carpet, room temperatures shall be maintained at 65-90 degrees F and with relative humidity ranging between 20 and 65 percent minimum for 72 hours prior to, during, and 72 hours following application. Materials shall be conditioned at application temperature and humidity at least 24 hours prior to application. Provide sufficient lighting for carpet installation.
D. Contractor shall provide method approved by the Owner's representative to mechanically exhaust all spaces to receive carpet to the exterior during installation and a minimum of 72 continuous hours, or length of time required by the manufacturer or Owner after installation.
E. Subfloor Moisture Conditions: Before installing carpet Contractor shall verify that Moisture emission rate of not more than 3 lb/1000 sq. ft./24 hours (14.6 kg/1000 sq. m./24 hours) when tested by calcium chloride moisture test in compliance with CRI 104, 6.2.1, with subfloor temperatures not less than 55 deg F (12.7 deg C), or as recommended by manufacturer.
F. Subfloor Alkalinity Conditions: Before installing carpet Contractor shall verify that a pH range of 5 to 9 when subfloor is wetted with potable water and pHydrion paper is applied.
1.7 WARRANTY
A. Stretch-in installation labor shall be guaranteed for one (1) year. Sixty days after installation, the Subcontractor is to re-stretch all carpet where necessary and as directed by Owner Representative.
1.8 EXTRA MATERIALS
A. Refer to Section 01850 for requirements. Provide 6% excess of each type, pattern and color.
B. Salvage scraps over 3 sq. ft. and over 1 ft. in width. Store as directed by Owner.
PART 2 - PRODUCTS
2.1 MATERIALS
A. Carpet: Refer to Materials Schedule on Drawings
B. No substitutions permitted
2.2 CARPET CUSHIONS
A. The following carpet cushion information is provided solely for use by the Contractor to determine locations.
2.3 ACCESSORIES
A. Seaming: Hot-melt seaming adhesive or similar product recommended by carpet manufacturer for taping seams and buttering cut edges at backing to form secure seams and prevent pile loss at seams.
PART 3 - EXECUTION
3.1 EXAMINATION
A. Examine substrates, areas, and conditions for compliance with requirements for maximum moisture content, alkalinity range, installation tolerances, and other conditions affecting carpet performance. Verify that substrates and conditions are satisfactory for carpet installation and comply with requirements specified.
B. Concrete Subfloors: Verify that concrete slabs comply with ASTM F 710 and the following:
1. Slab substrates are dry and free of curing compounds, sealers, hardeners, and other materials that may interfere with adhesive bond. Determine adhesion and dryness characteristics by performing bond and moisture tests recommended by the following:
a. Carpet manufacturer
b. Carpet cushion manufacturer
2. Subfloor finishes comply with requirements specified in Division 3 Section “Cast-in-Place Concrete” for slabs receiving carpet.
3. Subfloors are free of cracks, ridges, depressions, scale and foreign deposits.
4. Ensure floors are level with maximum surface variation of ¼” in 10’.
C. Proceed with installation only after unsatisfactory conditions have been corrected.
3.2 PREPARATION
A. General: Comply with CRI 104, Section 6.2, “Site Conditions; Floor Preparation,” and carpet manufacturer’s written instructions for preparing substrates indicated to receive carpet installation.
B. Use trowelable leveling and patching compounds, according to manufacturer’s written instructions, to fill cracks, holes, and depressions in substrates.
C. Remove coatings, including curing compounds, and other substances that are incompatible with adhesives and that contain soap, wax, oil, or silicone, without using solvents. Use mechanical methods recommended in writing by the following:
1. Carpet manufacturer
2. Carpet cushion manufacturer
3.3 INSTALLATION
A. Direct-Glue-Down Installation: Comply with CRI 104, Section 8, “Direct Glue-Down Installation”
1. In the case of direct glue-down, carpet glued to floor, no padding required, follow the manufacturers specifications.
B. Double-Glue-Down Installation: Comply with CRI 104, Section 9, “Double Glue-Down Installation”
C. Carpet with Attached-Cushion Installation: Comply with CRI 104, Section 10, “Attached Cushion”
D. Carpet with Preapplied Adhesive Installation: Comply with CRI 104, Section 10.4, “Pre-Applied Adhesive Systems”
E. Stretch-In Installation: Comply with CRI 104, Section 11, “Stretch-In Installation”
1. Install tack strip with adhesive, drill and pin, or nailing, or combination, where required for adequate strength.
2. Locate Tack strip 1/4 inch from wall to conceal carpet edge between stripping and base of wall. Strip entire perimeter of each carpeted space and at obstructions and cutouts.
F. Stair Installation: Comply with CRI 104, Section 12, “Carpet on Stairs”
G. Comply with carpet manufacturer’s written recommendations for seam locations and direction of carpet; maintain uniformity of carpet direction and lay of pile. At doorways, center seams under the door in closed position.
1. Level adjoining border edges
H. Do not bridge building expansion joints with carpet.
I. Cut and fit carpets to butt tightly to vertical surfaces, permanent fixtures, and built-in furniture including cabinets, pipes, outlets, edgings, thresholds, and nosings. Bind or seal cut edges as recommended by carpet manufacturer.
1. Check matching of carpet before cutting and ensure there is no visible variation between cut pieces.
2. Cut carpet, where required, in a manner to allow proper seam and pattern match. Ensure cuts are straight and true and unfrayed.
J. Carpet shall extend to the back of all toe spaces, under all millwork, cabinetwork, convectors, bookshelving, and similar items to the limiting planes of the floor surface. Where carpet terminates at a doorway, termination of carpet shall occur under the edge of the closed door, or at the side of the threshold where this is required. Cut and fit carpeting to all obstructions protruding from the floor surface, such as columns, pipes, thresholds, electrical, and telephone outlets, etc. All raw edges shall be latexed and securely and neatly tucked into place.
K. Maintain reference markers, holes, and openings that are in place or marked for future cutting by repeating on finish flooring as marked on subfloor. Use nonpermanent, nonstaining marking device.
L. Install pattern parallel to walls and borders.
M. Carpet shall be installed by experienced carpet layers in an approved manner, using the carpet manufacturer's recommended adhesive and procedures. Install carpet with pile running in the same direction, unless specifically directed to do otherwise.
N. Install carpet cushion seams at 90-degree angle with carpet seams.
O. The final carpet pattern, layout, edge binding locations shall be as directed and approved by Owner's Representative. All associated installation shall be by this Contractor.
3.4 SEALING CUT EDGES
A. To prevent fraying and raveling at all seams and transition areas, a continuous bead of seam adhesive must be applied to the first edge where the face yarn enters the backing.
B. On woven carpet, all cut edges at seams and transition areas must be secured with a latex seam adhesive immediately following the seam trimming.
3.5 SEAMING
A. Install pad and carpet seams in accordance with manufacturer's published instructions.
B. Locate pad seams at right angles to carpet seams. Where not possible to locate at right angles, locate pad seam minimum 6 inches away from carpet seams. Butt pad edges tightly together to form seams without gaps. Tape pad seams.
C. Maintain uniformity of carpet direction and lay of pile. At doors, center seams under doors; do not place seams in traffic direction at doorways.
D. Orcon Super 3S Wide tape will be used on all public area seams specifying hot melt tape.
E. The seaming iron with heat shield must be of proper size, matching the hot melt tape being used.
F. The proper head setting and exposure time must be used to assure proper transfer without creating damage to backing or pile yarn.
G. Orcon Super 3S tape will be used in Guest Rooms and suites where seams are specified.
H. Handsewing:
1. An overhand stitch placed no more than 1/2 inch apart and no less than 1/2 inch from the edge of the carpet is required.
2. A latex coating must be applied over the stitching.
3. The seam shall be allowed to dry at least eight (8) hours before stretching.
I. Where conflicts between Owner’s requirements and manufacturer’s requirements occur, use Owner’s requirements.
3.6 ACCESSORIES
A. Provide carpet edge guard where edge of carpet is exposed; anchor guards to substrate. Edge guard shall be used in all doorways or openings where no sill is installed or as required.
B. Stair Nosing: Coordinate with installation of carpet so that edge of the carpet is installed under edge of nosing or otherwise protected from unraveling.
3.7 ADJUSTING
A. Stretch-In Installation: Restretch carpet sixty days after Substantial Completion, as directed by Owner.
3.8 CLEANING AND PROTECTION
A. Comply with CRI 104, Section 15, “Protection of Indoor Installation”.
B. Remove and dispose of debris and unusable scraps daily.
C. Vacuum carpet daily using commercial machine with face-beater element. Remove spots and replace carpet where spots cannot be removed. Remove any protruding face yarn using sharp scissors. Knock down tacks at entries to baths and guest rooms (to protect feet).
D. Maintenance Materials: Deliver specified overrun (if any) and usable scraps of carpet to Owner's designated storage space, properly packaged (paper wrapped) and identified. Usable scraps are defined to include roll ends of less than 9'-0" length, and 3'-0" wide. Dispose of smaller pieces as "construction waste".
E. Protect carpet against damage from construction operations and placement of equipment and fixtures during the remainder of construction period. Use protection methods indicated or recommended in writing by carpet manufacturer.
END OF SECTION
09680 - 7 LK 00000