1.0 GENERAL
1.1 This particular specification document is to be read in conjunction with the Architectural Drawings, Bills of Quantities and other documentation issued to the Contractor. The materials and finishes proposed is subject to selection and approval of the S.O and Client. All finishes and fixing including assembly is subject to approval of shop drawings and Contractor's PE endorsement where necessary and to be as per standards and codes applicable in Singapore.
1.2 Where trade names or catalogue numbers are mentioned in this Specification or the Bills, the reference is intended only as a guide to the type of article quoted or material required. Subject to the approval of the S.O, the Contractor may substitute any article or material similar and equal to those described by reference to trade names or catalogue numbers. All proprietary materials or processes specified in this Specification or the Bills of Quantities are to be used or carried out strictly in accordance with the manufacturer's instructions and recommendations.
1.3 The Contractor is to highlight any discrepancy or deviation in the document and seek clarification and approval from the S.O prior to fabrication of the works.
2.0 ABBREVIATIONS
Throughout the Specification and other Documents, the following abbreviations have been used: m - Linear metre m2 - Square metre m3 - Cubic metre mm - Millimetre mm2 - Square millimetre No - Number oz - Ounce (avoirdupois) lb - Pound (avoirdupois) Cwt - Hundredweight kg - Kilogramme
Ton - Metric Tonne
o
C - Degree Celcius
N - Newton
W - Watt
BS - The 'British Standard' (including any amendment or re- enactment) issued by the British Standards Institution current as of the date of submission of tender.
CP - The 'British Standard Code of Practice' (including any amendment or re-enactment) issued by the Council for Codes of Practice of the British Standards Institution current as of the date of submission of tender.
AS - Australian Standards
DIN - Deutschae Industrie Norm (German Industrial Standards)
SS - The 'Singapore Standard' (including any amendment or re- enactment) issued by the Singapore Productivity and Standards Board current as of the date of submission of
tender.
BCA - Building Construction Authority of Singapore PSB - The Singapore Productivity and Standards Board FSB - Fire Safety Bureau
ISO - International Standardisation Organisation
3.0 SCOPE OF WORKS
The Contractor to also read this document in conjunction with architectural, structural and M&E drawings provided and to include all necessary works that are required to be done to complete this Package.
3.1 Non Fire Rated Timber Doors
a) Non Fire Rated Timber Doors including Ironmongery b) Non Fire Rated Timber Door Frames.
c) Other Related Accessories. 3.2 Fire Rated Timber Doors
a) Fire Rated Timber Doors including Ironmongery b) Fire Rated Timber Door Frames.
c) Other Related Accessories. 3.3 Non Fire Rated Metal Doors
a) Non Fire Rated Metal Doors including Ironmongery b) Non Fire Rated Metal Door Frames.
c) Other Related Accessories. 3.4 Fire Rated Metal Doors
a) Fire Rated Metal Doors including Ironmongery b) Fire Rated Metal Door Frames.
c) Other Related Accessories.
4.0 SAMPLES
4.1 All samples for all of the scope of work including name of manufacturer and country of origin is to be submitted for S.O’s approval by the Contractor. The Contractor is to submit test reports, certificates for products and materials used and method statement for the installation works, for S.O’s approval.
4.2 Contractor to allow for early installation of mock-up of doors at locations as may be directed by the S.O. The Contractor to submit revised door and ironmongery schedule during the course of project if there are changes and to submit as -built door and ironmongery schedule and drawings at the end of the project.
5.1 Metal door frames shall be manufactured by approved manufacturer and shall be produced from 2mm thick coated steel sheet press-formed and individually produced where necessary to suit the exact application requirement by way of frame profile types, door size and hardware preparation.
The materials used for manufacturing doorframes shall provide excellent resistance to rusting as well as a good base for paint finishes.
5.2 Metal door frames shall be produced to suit all authority requirement including BS 1245 and for fire doors BS 459 :Part 3.
5.3 All frames shall be fully reinforced and prepared to accept hinges and lockstrike plates as specified for the individual requirement as against samples on templates provided by the hardware supplier and the need for drilling, tapping or cutting on site should be obviated whenever possible.
5.4 Frames shall be produced in knockdown form with butt joints for simple bolted assembly or mitre-joints in knockdown form or welded construction. All corner joints shall have all edges tight with trim faces mitred and continuously welded and stops mitred.
5.5 Frames shall be supplied in knockdown form for easy and economical transportation, storage and erection. All frames shall have knock off spreaders at bottom of frame for protection until installation.
5.6 Metal doorframe shall be provided with one welded-in floor anchor and four adjustable fixing lugs to each jamb. All strike jambs shall be provided with neoprene seal or rubber buffers. All hinges shall be screwed to the reinforced treaded steel plates of sufficient thickness concealed in the metal frames. Plaster guards shall be installed at the back of all ironmongery cut-out. Reinforcement for strikes, flush bolts, closures and holders and surface reinforcement for hinges shall not be less than 7 gauge steel. 5.7 All hollow metal door frames shall be punched for silencers to be supplied by the ironmongery. Each single door shall receive three (3) silencers; each leaf in each pair of door shall receive four (4) silencers. Backs of all hollow frames shall be filled in solid with cement and sand (1:6) infill.
5.8 Metal door frames shall be finished in powder coat paint as specified under the section for painting works.