CARPET FLOORING WORKS

1.0 OBJECTIVE

1.1 To define the requirements and procedure for carpet flooring works under  the contract no GTC.101/ED/01 Engineering, Procurement, Installation and Commissioning (EPIC) of Ras Laffan Utilization Project –Buildings and utilities and support service Phase 1-Utilities.

2.0 SCOPE

2.1 Applicable to all the office buildings at Service Base Area, Service Berth Area, F.S.O Marine area and Telecom Building.

3.0 REFERENCE

3.1  Project Approved Drawings

• Qatar Petroleum standard Spec. Vol. 1, Section 9.27, 9.49, 9.50, 9.51.
  • British Standard BS  5808

4.0 PROCEDURE

4.1 MATERIAL APPROVAL:

 4.1.1   Carpet material such as carpet, carpet tiles, under lay, etc. should be       approved by QP engineer.

4.2 GENERAL REQUIREMENT:

• Before carpet-laying work commences, it has to be ensured that the building is weather tight.

• All the wet trades have finished their work. All the painting works should be finished and dry.

• All the socket out lets, duct covers and the like around which carpet needs to be cut have been fixed.

• The substrate on which the carpet is laid should be dry and clean.

• Carpet shall be cut and fitted to all socket outlets and other fixtures and shall be cut in all the doorways and recesses. It shall not be pieced in.

• Where practicable, room coverings shall start with a full width of carpet by the side of door.

4.3 INSTALLATION OF CARPETS WITH TACKLES FIXINGS

• Unless the manufacturer’s specially recommends or otherwise, all the carpet other than foam backed and fiber bonded carpet, shall be fixed by means of tackles strip (gripper).

• All carpets of one type, color and pattern shall be from the same batch.

• The underlay shall be installed so that its seams do not shadow through the carpet and do not coincide with those of the carpet when laid in the same direction. Uneven edges shall be overlapped and cut through.

• The seams of rubber and rubber-based underlays shall be joined with approved tape as per manufacturer’s recommendations.

• The underlay shall be fixed along its perimeter in accordance with the manufacturer’s recommendations.

• The underlay shall cover the treads and risers of stairs and shall be fixed to prevent movement and wrinkling.

• Seams in carpet shall be joined by approved heat bonded tape or as per manufacturer’s recommendations. Care shall be taken to ensure that:

1. The joints are strong enough to permit the carpet to the stretched and not break down under use.
2. The pile is laying in the same direction.
3. The pile is not caught down into the seam.
4. The seams are straight.
5. The carpet shall be laid with the seams parallel to one main axis of the room.

• The gripper shall be fixed around the perimeter of the area to be covered leaving a gap approximately two thirds of the thickness of the carpet which shall be stretched into position over the gripper using a knee kicker or power stretcher as appropriate to form a neat rolled edge.

• Binder bar shall be used at all free edges of carpet and double binder bar shall be used where carpets of a different type, color or pattern meet.

• Single or double binder bar appropriate shall be used at all doorways situated under the centre line the door leaf .

• At stairs the pile of the carpet shall be towards the bottom. Gripper shall be fixed to the bottom of all risers and to the adjacent horizontal surface of the tread.

4.4 INSTALLATION OF CARPET WITH ADHESIVES

• Fiber bonded, high density foam backed carpet and carpet where the manufacturer specifically so recommended shall be fully bonded to the sub floor using QP approved peel up adhesive applied in accordance with the manufacturer recommendations.

• Joints in the carpet shall be bonded with a joining adhesive recommended by the manufacturer of the carpet  and shall parallel to one main axis of the room.

• Where applicable care shall be taken to ensure that:

1. The pile is laying in the same direction.
   1. The pattern matches where a repeating motif occurs.
   1. The pile is not caught down into the joint.
   1. The joints are straight.

• Adhesive marks shall be removed from the carpet and other exposed surfaces as the work proceeds.

• At stairs the pile of the carpet shall be towards the bottom. The carpet shall be folded under any exposed edges and fixed to each tread as one continuous piece unless a nosing is provided

• Edge trim or dividing strips shall be used at all free edges of carpet and double binder bar shall be used where carpets of a different type, color or pattern meet.

• On completion of the installation , all loose rap ends shall be trimmed , the carpet shall be cleaned with a beater type vacuum  cleaner  and covered with clean dust sheets, hardboard, ect, as necessary to prevent damage from dust and traffic until handover.

• All carpets shall be installed by skilled operatives only, so that it is flat and sufficiently taut to ensure that movement of furniture over the surface does not cause rucking to take place.

5.0 Records :

• Materials Approval

• Inspection reports.

• Checklist.