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All components for incorporation into the Works shall be in metric units. However, when metric components are not available, their equivalent in imperial units may, subject to the approval of the SO Rep, be used and such a substitution shall not constitute a variation to the Contract.

1.2.2 Materials And Workmanship

As directed, furnish the SO Rep with approved documents to prove that materials are as specified.

The documents shall include but not be limited to any or all of the following, such that the authenticity of the materials can be easily ascertained :

(i) shipping documents

(ii) serial numbers

(iii) warranty certificates

In the event that any documents submitted are not original copies, they shall be duly certified by the originating parties. No information within the documents shall be tampered with, unless it is clearly discernible that the items are not related to the materials specified in the Contract.

Where specific brand and model number are specified, or where alternative brands and model numbers are offered by the Contractor and accepted by the SO Rep, it shall be deemed that the finished products are entirely of original make by the registered manufacturer and fully supported by the Manufacturer's warranty. In the event that any alteration is made to the goods by a local agent or any other intermediary, the approval of the SO Rep shall be sought and the result of the alteration shall be fully supported by the Manufacturer such that the Manufacturer's warranty is maintained.

All references to local or foreign standards and/or Codes of Practice shall be deemed to be inclusive of the prevailing amendments to these standards and/or Codes of Practice.

Samples of materials shall be submitted to the SO Rep for approval before order is placed with the supplier.

Such approval by the SO Rep shall not relieve the Contractor of its obligations under the Contract.

The Contractor shall ensure that the materials are free from any defects, damages or any other flaws.

1.2.3 Credit Terms And Conditions For Employer's Materials

For materials directly supplied by the Employer, a 2-month credit facility from the date of delivery may be allowed. The Employer reserves the right to deliver the materials to the Contractor's site or other designated locations even if he fails to re-confirm his earlier purchase order to the Employer. The cost of the materials so delivered shall be deducted by the Employer from the Contractor by deduction from monies due or becoming due to the Contractor or as a debt due by the Contractor to the Employer.

The Employer reserves its sole and unfettered discretion to withdraw such credit facilities without any prior notice to the Contractor under any circumstance as it deems fit, including but not limited to where a garnishee order is served on the Employer in respect of any contracts the Contractor has with the Employer or where a petition in bankruptcy or winding up order is presented by or made against the Contractor. Under no circumstances shall the Employer be liable to the Contractor's claim for any cost, expense, profit and loss arising out of or in consequence of the withdrawal of such credit facility.

Where such credit facility is withdrawn, the Contractor has to pay the Employer in cash for all materials he has ordered for the Works before the Employer will deliver the materials to the Site or allow the Contractor to collect the materials.

Where the garnishee order is discharged or withdrawn or made absolute or where the petition in bankruptcy or winding up order is withdrawn, the Contractor may apply to the Employer in writing, with documentary proof, to have the credit facility reinstated. The Employer shall have the absolute right to decide whether or not to reinstate credit facility to the Contractor and the Employer is under no obligation to provide any explanation if it decides not to reinstate the credit facility.

1.2.4 Reserved

1.2.5 Approval Of Samples And Trade Names

Where trade names or catalogue numbers are specified in the Specifications and/or shown in the Drawings, they are intended only to serve as a guide to the respective type and quality of material required. Other material proposed by the Contractor may be used subject to the prior approval of the SO Rep. In this respect, the Contractor shall submit samples of the proposed material to the SO Rep for approval.

When a sample is approved by the SO Rep and subsequently work is carried out in accordance with this approved sample, any cost difference resulting from the higher price of the approved sample as compared with the price of the material as required and/or as shown shall not be payable to the Contractor, unless the change of material is ordered by the SO Rep.

With the exception of lighting luminares, where the requirements for cost recovery are provided for differently, in the event that the price of the approved sample is lower than that of the material as required and/or as shown, the cost difference shall be recovered by the Employer by way of contract variation in accordance with the following table :

Recovery (or Non-Recovery) by the Employer from the Contractor in the event that the price of the approved material is lower than that of the material as required and/or as shown

S/N Material as required and/or as shown

Material proposed by Contractor

and approved by the SO Rep Cost Adjustment

1. On the HDB Materials List On the HDB Materials List No cost recovery

2.

3.

4.

On the HDB Materials List

Not on the HDB Materials List

Not on the HDB Materials List

Not on the HDB Materials List

On the HDB Materials List

Not on the HDB Materials List )

For lighting luminaires, in the event that the price of the approved sample is lower than that of the material as required and/or as shown, the cost difference shall be recovered by the Employer by way of contract variation regardless of whether or not the approved sample and/or the material as required and/or as shown are shown in the HDB Materials List.

For the purposes of this subclause only, the applicable HDB Materials List shall be the prevailing HDB Materials List applicable at the time the Contractor submits the material for approval by the SO Rep.

Where cost recovery is required, the basis of such adjustment shall be the difference between the price of the proposed material and that of the material as required and/or as shown (where one type of material is specified) or that of the cheapest of the materials as required and/or as shown (where more than one type of material is specified).

The Contractor shall point out to the SO Rep all items in the approved sample which do not comply with the Specifications and/or Drawings.

Notwithstanding approval of the sample by the SO Rep, the Contractor shall be liable for any items in the sample which do not comply with the Specifications and/or Drawings and which the Contractor has failed to point out to the SO Rep.

Where the Contract requires the Contractor to obtain materials from the HDB Materials List or where it is specified that materials provided are subject to the approval of the SO Rep, such requirements shall not in any way affect, vary or relieve the Contractor's obligations under the Contract.

The Contractor shall ensure that the materials used or selected by them:

(a) are free from defects, damages or faults;

(b) are of merchantable quality and fit for their intended purpose; and (c) comply with the Specifications and/or Drawings.

1.2.6 Sample Unit And Quality Standards 1.2.6.1 Sample Unit

The Contractor shall provide at his own costs and expenses, for the inspection, testing and approval of sample units for each of the different dwelling unit types as instructed by the SO Rep. These sample units shall be truly representative of the actual units to be constructed in every respect inclusive of all architectural details, architectural and structural features, finishes, services, fittings, etc.

The Contractor shall comply with the Quality Standards specified under this clause for setting up of sample units and sample panels. The specifications, drawings or details shall be read in conjunction with the quality standards specified under this clause. In case of discrepancies between the specifications, drawings or details and the quality standards specified under this clause, the Contractor shall obtain approval from the SO Rep before proceeding with the works.

The approved sample units shall be used as reference for the standard and quality of workmanship and materials that are acceptable to the SO Rep. The Contractor shall ensure that the completed Works (including works that are not listed in the quality standards specified under this clause) are at least of the same standard and quality as that in the sample units.

The Contractor shall commence to construct the sample units when the structural works of the first building block reaches the fifth (5th) storey floor slab. The contractor shall complete the sample units within three (3) months from the aforesaid commencement date for inspection and approval by the SO Rep.

The Contractor shall maintain the sample units to a clean, neat and tidy condition at all times.

Adequate artificial lightings shall be provided where possible and as directed by SO Rep all at the Contractor’s cost and expense.

Notwithstanding the approval of the SO Rep in respect of these sample units, the Contractor shall not be released from any of his duties and obligations as required of him under the Contract.

1.2.6.2 Quality Standards For Architectural Works

S/N ITEMS QUALITY STANDARDS

1. Column/ Wall (Plaster or skim finish)

• Walls meet at right angles (deviation not to exceed 4mm over 300mm)

• Surface unevenness not more than 3mm over 1.2 m

• No stain marks, paints drips and any visible damage

• No crack

• No hollow sound when tapped with a hard object

• Straightness of corners and joints 2. Ceiling /Beam (Skim

finish) • Beams meet at right angles (deviation not to exceed 4mm over 300mm)

• Surface unevenness not more than 3mm over 1.2 m

• No crack

• Straightness of corners and joints

• Surface should be visually even with no waviness or patches due to patching works

3. Metal Gate and Frame

• Verticality (tolerance of max 3mm)

• Evenly painted, no stain or scratches

• No dent, rust or mortar dropping

• Inner frame align with outer frame with consistent gap

• Welding at joints ground even or flushed

• Consistent gap between gate and unit slab (between 45mm to 55mm)

1.2.6 Sample Unit And Quality Standards (Cont’d) 1.2.6.2 Quality Standards For Architectural Works (Cont’d)

S/N ITEMS QUALITY STANDARDS

4. Door • Alignment/level with walls

• No visible gaps between door frame and wall

• Door surface and joints properly sanded down and with consistent varnish finish (including on top and bottom of door leaf )

• Both leaves aligned when close (offset not more than 2mm)

• Consistent gap between door & frame (not more than 5mm)

• Warp not more than 2mm

• Ease in opening and closing

• No stain marks and any visible damage

• Door and frame corners maintained at right angles

• No sign of corrosion and any visible damage in ironmongery or metal frame

• Consistent gap between door & finished floor (between 3mm to 10mm)

• Door gap between door frame & finished floor to comply to FSSD’s requirements for fire-rated door

• Consistent gap between door and unfinished floor level (between 45mm to 55mm)

• Verticality (tolerance of max 3mm)

• Gap between HS door and unfinished floor level (not less than 60mm)

5. Wall Tiles • No mortar stains or paint drips

• No hollow sound when tapped with a hard object

• Consistent colour tone

• Consistent and neat pointing

• Consistent joint size

• Lippage between 2 adjacent tiles not more than 1mm. For homogenous tiles, the lippage between 2 adjacent tiles not more than 0.8mm

• Surface unevenness not more than 3mm over 2m

• Alignment of joints with floor tiles where applicable 6 Floor:

a) Unfinished floor

• Surface unevenness not more than 10mm within the unit

• No foot print or indentation

• No mortar dropping

• No faeces stains

b) Screed Finish • Ponding not deeper than 3 mm

• No crack

• No hollow sound when tapped with a hard object

• Surface unevenness not more than 3mm per 1.2m

• No stain marks and any visible damage

• Surfaces should not be unduly rough or patchy

• Consistent skirting thickness and no gap between wall &

skirting

1.2.6 Sample Unit And Quality Standards (Cont’d) 1.2.6.2 Quality Standards For Architectural Works (Cont'd)

S/N ITEMS QUALITY STANDARDS

6 c) Floor Tile • Surface unevenness for dry areas (without fall) not more than 3mm over 2m

• Falls in wet areas should be in the correct direction towards floor traps or discharge points

• Consistent colour tone

• Consistent skirting thickness

• Consistent joint size

• No mortar stains or paint drips

• No hollow sound when tapped with a hard object

• Lippage between 2 adjacent tiles not more than 1mm. For homogenous tiles, the lippage between 2 adjacent tiles not more than 0.8mm

• Consistent drop between kitchen and unfinished living room floor (between 45mm and to 50mm)

• Alignment of joints with wall tiles where applicable d) Timber floor • No cracks and warpage

• Timber strips to rest firmly on screed with no hollow sound when tapped

• No gaps in between timber strips (joint width not more than 0.5mm at localized areas)

• Edges of the floor to be properly sealed

• No unevenness between timber strips

• Surface unevenness (not more than 3mm per 1.2m)

• Consistent skirting thickness and no gap between wall &

skirting

• Uniformity in timber strip tone

• Surfaces are evenly varnished with no patchiness resulted from touch up works

• No stain marks and any visible damage

7. Windows • Alignment /level with wall openings (offset not more than 5mm)

• No visible gap between window frame and wall

• No sign of rainwater leakage

• Ease of opening and closing

• When closed, tight fit with no gap

• No mortar droppings and paint drips on frames and glazing

• Window leaf and frame corners maintained at right angles

• Neat joint between window and wall internally and externally

• Consistent gap between window leaf and frame (not more than 5mm)

• No dents, scratches or visible damage

• Accessories firmly secured and functioning

• Glazing clean, evenly sealed with gasket for aluminium windows

• Glazing no chips, cracks, scratches, mortar droppings, paint drips

8 Painting • No obvious brush line

• Surfaces are evenly painted

• Good opacity, no patchiness resulted from touch up works

• Free from peeling, blistering and chalkiness

• No tonal variation, discoloration and fading

1.2.7 PSB Quality Certificate

Where two or more alternative materials are proposed by the Contractor under subclause 1.2.5

"Approval Of Samples And Trade Names", the SO Rep may at his sole discretion give preference to the use of a material that is approved under any of the PSB quality certification schemes.

1.2.8 Storage Facility For Cement

Where storage of cement is required, the Contractor shall provide adequate storage facilities at the Site to accommodate cement up to two weeks' requirements for the Works.

The store to accommodate the cement shall be constructed so that each consignment of cement can be separately stacked. Each consignment of cement shall also be used in the same sequence as they are delivered, that is, on a "first-in first-out" basis.

The Contractor shall ensure that the cement stored at the Site is kept dry and properly protected against loss or damage at all times.

1.2.9 Precautions Against Materials Being Taken Out Of Site

The Contractor shall be responsible for the safe custody of cement and all other materials delivered to the Site and shall therefore ensure adequate protection and prevention of such materials from being taken out of the Site. The SO Rep will not accept any excuse for materials taken out of the Site by the Contractor, his foreman or other individual even without the knowledge of the Contractor who is deemed to have provided for proper control against such malpractice. If it is established that cement or any other material is taken out of the construction Site without specific written approval from the SO Rep, this shall be deemed to be an irregularity and inter-alia, the right of the Contractor to compensation for price fluctuations for all materials shall lapse.

1.2.10 Ready-Mixed Concrete from Approved Suppliers

The Contractor shall obtain ready-mixed concrete from any of the pre-approved suppliers. Provide the name and address of the ready-mixed concrete suppliers to the SO Rep. The use of ready-mixed concrete shall be subject to the terms and conditions set by the SO Rep. All Delivery Orders for ready-mixed concrete delivered to the Site shall be endorsed by the Employer's Resident Technical Officer and submitted to the SO Rep.

Failure to inform the SO Rep or non-compliance with the terms and conditions set by the SO Rep for the use of ready-mixed concrete shall, inter-alia, result in the Contractor forfeiting his right under the Contract to claim compensation for price fluctuations for all materials.

1.2.11 Water

Water approved by the SO Rep shall be used for building purposes except where specified in Clause 4.3 "Water". The Contractor shall pay for all charges and temporary plumbing required.

1.2.12 SUPPLY OF CONCRETING MATERIALS

1.2.12.1 Supply Of Concreting Materials From The Employer

Notwithstanding other provisions in the Specifications, the Contractor shall have the option to purchase the following concreting materials from the Employer:

(a) Ordinary Portland Cement

(b) 20mm Granite Aggregate

(c) Concreting Sand

For the purpose of this clause, these materials to be supplied by Employer shall hereinafter be referred to as the “Protected Materials” and their respective quantities indicated by the Contractor shall hereinafter be referred as the “Protected Quantity” for the purpose of this clause only.

.

1.2.12.2 Quantity To Be Supplied

The Contractor shall indicate the respective quantities of the above materials to be purchased from the Employer in Annex D – Part A of the Form of Tender, subject to the Maximum Protected Quantity specified therein. The Maximum Protected Quantity indicated in Annex D – Part A of the Form of Tender does not include the quantity of concreting materials required for precast concrete components that are supplied by the Employer.

The Contractor shall place his orders directly with the Employer and comply strictly with the

"Conditions For The Supply Of Materials From The Employer" as stipulated in Appendix A13. The Contractor shall be deemed to have included all costs and expenses to be incurred by him in compliance with the requirements stipulated in this clause in the Contract Sum.

The SO Rep reserves the right to allocate the monthly quantity to the Contractor as well as to nominate the Employer’s supplier. The Contractor shall absorb the total quantity allocated to him. If the Contractor's requirement is more than the Employer's capacity to supply, the SO Rep may direct the Contractor to supplement his requirement from other sources. In this event, the Contractor shall

The SO Rep reserves the right to allocate the monthly quantity to the Contractor as well as to nominate the Employer’s supplier. The Contractor shall absorb the total quantity allocated to him. If the Contractor's requirement is more than the Employer's capacity to supply, the SO Rep may direct the Contractor to supplement his requirement from other sources. In this event, the Contractor shall

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