A. Scope
This specification covers the supply and installation of the kitchen cabinets with all necessary accessories intended to be used for the works in accordance with the drawings, approved working drawings and to the satisfaction of the Engineer.
Work under this section shall include but shall not be limited to the following:
Floor and wall units with shelves, drawers, doors, hardware, etc.
Work top and sink units including all accessories and associated works.
Cooker hood re-circulating type with grease and carbon filters.
B. Manufacture
Kitchen cabinets shall be as indicated below:
Carcasses shall be of 18mm thick MDF of Canadian Origin. All doors shall be 18mm thick MDF, PVC coated of Italian origin with rounded edges on all four sides. Units shall be assembled using white glue and wooden dowels. The base unit shall rest on adjustable aluminium legs and rubber shoes. Clip on type PVC skirting shall be provided. All hinges of 180 and 90 degrees to be clip-on and self-closing type. All hinges shall be of 180° opening unless it is not possible. Wall brackets shall be adjustable in three directions. Drawer sides shall run on steel epoxy coated runners with special plastic rollers. Knobs and handles shall be to the approval of the Engineer.
Cooker hood shall be proprietary make re-circulating type through grease and carbon filters.
Cooker hoods shall be provided for apartments only. Unless otherwise indicated the length of the cooker hood shall be 900mm and as approved by the Engineer.
C. Worktop and sink
Worktops shall be of 30mmm thick granite “Grey Sardo”. The dimensions and shape shall be as detailed on drawings and to the approval of the Engineer. The Contractor shall submit shop drawings for the same along with the necessary supports accompanied by calculations justifying the thickness, stability and sufficiency for the approval of the Engineer.
Sinks shall be of Carysil of Acrysil Ltd. with mixers, bottle traps fittings and fixtures complete of configuration and as indicated on drawings.
D. Installation
The installation of the kitchen cabinets, worktops with sink units shall be carried out in accordance with the approved drawings and the manufacturer’s written directions to the satisfaction of the Engineer.
E. Working Drawings
Detailed working drawings for the design of the Kitchen cabinets, based on the specification and drawing shall be submitted to the Engineer for approval prior to order. The drawings, when approved by the Engineer, shall constitute an integral part of the Contract Documents.
6000.12 DOORS, CUPBOARDS & OTHER ARCHITECTURAL WOODWORK
A. Submittals
B. Production Data: Manufacturer’s technical data for each type of wood door, including details of core and edge construction, trim for openings and factory –finishing specifications shall be submitted.
C. Fire-retardant materials: Manufacturer’s instructions for handling, storing, finishing and installation of fire-retardant treated material shall be included with the submittal.
Certification that fire-retardant treated materials comply with the requirements indicated, and will not aesthetically and structurally be impaired by the treatment shall be provided.
D. Shop Drawings: Shop drawings indicating location and size of each door, elevation of each kind of door, details of construction, location and extent of hardware blocking, factory finishing and other pertinent data shall be submitted.
Doors and frames shall comply with tolerance requirements of BS, AWI and other International Standards for pre-fitting.
Dimensions and alignment of hardware mortises in frames shall be verified before proceeding with factory pre-machining.
E. Examination: The Contractor shall examine installed door frames prior to hanging to verify that frames comply with requirements for type, size, location & swing and are installed plumb and level. Doors with defects shall be rejected.
Installation shall not be commenced until unsatisfactory conditions have been corrected.
F. Adjusting and Protection: Doors which do not swing or operate freely shall be re-hung or replaced. Damaged doors shall be refinished or replaced.
Wood doors shall be protected from damage during construction activities.
Doors shall be protected as recommended by door manufacturer to ensure that wood doors are without damage or deterioration at time of issue of the Substantial Acceptance Certificate.
G. Quality Assurance
Manufacturer/Fabricator: Firm with not less than 5 years successful experience on projects of similar size and quality to that shown and specified.
Fire retardant treatment: Fire-retardant treats those items required by applicable codes to be treated and those items shown or specified as “Fire retardant Treated Wood” or similar designation.
Fire retardant marking: Each unit of fire-retardant treated wood and plywood shall be marked with producer’s label and a label showing grade and rating. Mark shall be on surface which will not be exposed after installation.
H. Project Conditions
Woodwork shall not be installed until required temperature and relative humidity have been stabilized and will be maintained in installation areas.
It shall be ensured that the moisture content of installed woodwork is maintained within 1.0 percent of optimum moisture content, from date of installation through remainder of construction period. The fabricator of woodwork shall determine optimum moisture content and required temperature and humidity.
I. Basic Materials And Fabrication Methods
General: Except as otherwise indicated, the following requirements shall be complied with.
Wood moisture content: Kiln-dried (KD) lumber with an average moisture content range of 6% to 11% shall be provided for interior work. Temperature and relative humidity shall be maintained so that moisture content values for woodwork at time of installation does not exceed 10%.
Fire Retardant Treatment: The Contractor shall provide fire-retardant treated lumber and plywood which comply with applicable standards for pressure impregnation with fire-retardant chemicals and with the following requirements.
Flame spread, fuel contribution and smoke developed ratings of 25 or less, with no increase in flame spread and no evidence of significant progressive combustion upon continuation of test for additional 20minutes.
Fire retardant treatment which is relatively insoluble in water, will not adversely affect color and finishes indicated, and permits milling of lumber after treatment and kiln drying by a certified plant.
Kiln-dry treated woodwork to required moisture content after treatment. Twisted, warped, bowed or otherwise damaged or defective wood shall not be used.
Fire-retardant particle board panels with surface-burning characteristics of 20 for flame spread and 25 for smoke developed when tested in accordance with ASTM E 84 shall be provided.
Solid Wood: AWI Section 100, grade 1. Colour and finish shall match samples on file with the Engineer.
Plywood: Veneer core, minimum 20mm thick unless otherwise noted, interior grade using exterior type waterproof glue.
The Contractor shall provide “A” face plies of 1.0 mm plain sliced, clear, paint grade veneers for exposed and semi-exposed surfaces to receive “painted finish”.
The Contractor shall provide plywood for “painted” finish with “V” type hardwood edge banding on exposed edges and on all edges of adjustable shelves. Edges band shall be pressure glued to core with mitered corners.
Panel products: AWI Section 200, particleboard core plywood, with face veneers matched as indicated.
Transparent finish; grade I per AWI Section 200-S-8. Colour and finish shall match samples on file with the Engineer.
Opaque finish: Species of hardwood veneer of Grade II per AWI Section 200-S-8 which, when finished will not show any grain, or defects when used with opaque finish.
Lumber: AWI Section 100 with the following requirements:
Panels with fire-retardant chemicals incorporated at time of manufacture to achieve surface-burning characteristics of 20 for flame spread and 25 for smoke developed when tested in accordance with ASTM E 84 shall be provided.
Miscellaneous products:
Fasteners:
Wood Screws: Type, size, material and finish as required for the condition of use.
Nails: Type, size, material and finish as required for the condition of use.
Anchors: Type, size, material and finish as required for the condition of use.
Staples: Type, size to provide sufficient strength to hold upholstered fabric taut and in place without sagging.
Adhesive for laminating plastic laminate surfaces: Melamine, phenol-resin, or resorcinol-resin; type, grade and class best suited for the purpose.
J. Fire Rated Doors
It shall be responsibility of the Contractor to provide doors of fire rating indicated on drawings to the approval of the Civil Defense Authorities and the Engineer, in additions to meeting the relevant standards. All door sets shall follow the fire zoning and shall be of appropriate rating to the location they are situated in.
The details shown on drawings are for purpose of architectural finish and layout only and not for achieving the required ratings.
The construction of the door shall be as required to meet the required rating with the approval of the Engineer and the concerned authorities.
Any approval accorded by the Engineer shall not relieve the Contractor of ay of his contractual obligations and responsibilities.
K. Workmanship – General
All fabrication shall be made from field measurement with provision for scribing as required to meet built-in conditions.
Work of this section shall be coordinated with work of other trades.
Units shall be fabricated in largest practicable sections. Trial fit shall be made in the shop, disassembled for shipment and reassembled with concealed fasteners as required.
Relative humidity and temperature conditions shall be maintain during fabrication, storage and finishing operations matching that of the areas of installation.
The details shown indicated the required type of construction. Modifications to conform to manufacturer’s standards, requirements of concerned authorities and standards may be considered providing they comply with the Contract documents, maintain the profiles shown and are subject to acceptance by the Engineer.
Reinforcing as required shall be provided to ensure a rigid assembly. Exposed surfaces shall be free of dents, tool marks, warpage, buckle, glue, and open joints or other defects. All joints, corners and miters shall be fitted accurately.