Article No. (10) Implementation Procedure

1) Steps for Implementing Roof Waterproofing:

First: Preparation Before Waterproofing
• Thoroughly clean the roof: Remove dust, oils, and concrete debris. Wash the roof with water and allow it to dry completely.

• Inspect the roof: Ensure there are no honeycombs, cracks, or subsidence. Repair any defects before  starting the waterproofing  process.

• Repair cracks and joints: If present, use approved materials and follow industry standards.
• Apply a primer coat suitable for the type of waterproofing being used (bitumen). Allow it to dry according to the manufacturer’s instructions. Second: Application of the Roller Waterproofing Layer

• Construct a cement skirting board at the corner of the parapet, at least 5cm x 5cm.

• Lay two layers of bitumen waterproofing membrane, each 4mm thick, reinforced with 180mm material from Henkel or Daco. Attach the membrane to the walls using granular waterproofing membranes from Daco or Henkel, at a height of at least 20-30cm, reinforcing corners and joints with an additional layer. Supply and install aluminum skirting boards to secure the waterproofing.

Third: Waterproofing Testing

• Flood the surface with water for 24-72 hours. Ensure there are no leaks.

Fourth: Protection Layer

• Special protection boards with a density of 35 kg/m² and a thickness of 5cm.

• Supply and install aluminum strips to secure the waterproofing to the walls, filling them with silicone. • Install a permeable geotextile membrane (filter)

2) Steps for Bathroom Waterproofing:

First: Preparation Before Waterproofing

• Floor Cleaning: Remove dirt, oils, mortar residue, and wash the surface with water, leaving it damp but not waterlogged.

• Repairing Defects: Fill cracks and gaps with cement repair mortar and repair construction joints and junctions.

• Applying the Waterproofing Skirting: Create a cement skirting around the perimeter of the bathroom and pipes using cement mortar with added Sika and bonding agent, 3 cm thick.

• Floor Smoothing: Use Sika Smoothing Powder with added waterproofing bonding agent.
• Preparing Drainage Outlets: Install waterproofing rings around the drains, ensuring a tight seal and no gaps, using Sika Repair SF with bonding agent and a sealant. Second: Applying Cementitious Waterproofing (must contain waterproofing additives)
• Applying the first coat: Paint the floor and walls up to the skirting board height, reinforcing corners and joints.
• Applying the second coat: After the first coat has dried for approximately 4-6 hours. It should be applied perpendicular to the first coat (vertically).

Third: Testing and Post-testing
• Flood the bathroom floor with water for 48 hours and ensure there are no leaks.

• Protect the waterproofing work with a geotextile layer.

3) Steps for Implementing Tank Waterproofing:

• Floor cleaning: Remove dirt, oil, and mortar residue. Wash the surface with water and leave it damp but not waterlogged. Cut the grout lines 2 cm deep and fill them with CICO REPAIR FS followed by CICO BOND ACRYLIC.

• Repairing any hollow areas: Apply CICO REPAIR SF to any protruding areas, followed by CICO BOND ACRYLIC.

• Applying waterproofing skirting: Create a cement skirting around the perimeter of the bathroom and pipes using cement mortar with added Sika and bonding agents, 3 cm thick.

• Smoothing the floor: Apply CICO smoothing powder mixed with a waterproofing bonding agent.

• Preparing drainage outlets: Install waterproofing rings around the drains, ensuring a tight seal and no gaps, using CICO REPAIR SF with bonding agents and a sealant. Second: Epoxy Insulation Application
• Clean the tank and remove all impurities, mechanically sanding the walls.
• Apply CICO SMOOTHING POWDER twice around the entire perimeter of the tank, followed by CICO BOND ACRYLIC, and sand the walls.
• Apply the first and second coats of CICO COAT HB to the floor, walls, and ceiling.
Third: Testing and Post-Testing
• Flood the bathroom floor with water for 48 hours and ensure there are no leaks.

Second – Obligations to comply with technical specifications:

• Interior Painting of Walls and Ceilings (Plastering)

1) Ensure the plastering work is complete, completely dry, and free of moisture before starting painting.

2) Ensure the surface is level and free of any honeycombing or cracks. If any are present, repair them correctly according to industry standards.

3) Adhere to the drying time between paint coats as per the manufacturer’s instructions (Jotun Saudi Arabia).

4) Sand the walls with a stone sander to remove plaster residue and dust, and treat them before starting painting to achieve a smooth, even surface.

5) Apply a coat of Jotun Saudi Arabia interior sealer, repair any imperfections that appear after the sealer is applied, and sand again if necessary. 6) Apply two coats of Jotun Saudi Arabia’s Vionnet putty, then sand to achieve a smooth, even surface.

7) Apply one coat of Jotun Saudi Arabia’s Stucco interior putty, then sand to achieve a smooth, even surface.

8) Apply one coat of primer followed by two coats of Jotun Saudi Arabia’s Dursan 02 topcoat (quarter gloss for walls and matte for ceilings) according to the approved color scheme.

9) Ensure that all painting work is uniform and consistent, with no visible paint rollers.

• Interior Painting of Gypsum and Cement Board Ceilings

1) Clean the gypsum ceilings of dust and debris from previous work, ensuring the gypsum board is level and properly installed.
2) Seal all joints between gypsum board panels and install corner beads using joint tape. Repair all screw holes and surface imperfections.
3) Apply one coat of Jotun Saudi Arabia’s interior sealer, address any imperfections that appear after sealing, and reapply. Sanding as needed.

4) Apply two strokes of putty, followed by sanding, to achieve a smooth, even surface.

5) Apply a base coat and two coats of Jotun Saudi Arabia Dursan 02 Matte topcoat according to the approved color.

6) Ensure, after completion of all painting work, that it is uniform, the same color, and that there are no visible traces of paint rollers.

• Exterior Painting

1) Ensure that the plastering work is complete, completely dry, and free of moisture before starting painting.

2) Clean the exterior facades of dust, dirt, and salts, and ensure the plastering work is level.

3) Ensure the surface is level and free of honeycombing or cracks. If any appear, treat them correctly according to industry standards.

4) Apply a Jotun Jotashield Kali exterior sealer.

5) Apply a Jotashield Antix American spray coat according to the required specifications.

6) Apply two coats of Easy Coat topcoat according to the sample approved by Jotun.

7) After completion of all painting work, ensure that it is uniform, the same color, and that there are no visible traces of paint rollers. antiquities

Second: Technical Specifications

1. All wooden doors are 2.40 meters high.

2. Door core: 33 mm thick hollow chipboard.

3. Face: 6 mm thick MDF with Green Lam Formica or similar.

4. Edges: Beech wood on all four sides.

5. Frame: 42 mm solid beech wood.

6. Trims: 9 cm x 18 mm thick with Green Lam Formica or similar finish.

7. Top cladding: 11 mm thick MDF with Green Lam Formica or similar, 1100 mm high on both sides, as per specifications.

8. A 20 cm high stainless steel strip is installed under the door leaf on the inside of bathroom doors to protect it from moisture, if supplied by the first party. 9. The frame is installed and secured using galvanized brackets and dowels.

10. The gaps between the wall and the frame are filled with standard foam.

11. Four (4) stainless steel door hinges are installed, along with stainless steel screws for the hinges. The hinges are recessed into the wood to the exact dimensions specified (the hinge must be recessed into the wood, flush with it, and not protruding).

(Royal 120mm aluminum for sliding windows, 1.8mm profile thickness, Jotun paint according to the approved sample) (Alubco 45mm aluminum for hinged windows and fixed frames) and (Italian-made hinged window accessories from Regni, glass seals from Zamil, and Alfa seals for hinged windows) and (Italian-made sliding window accessories from Regni, wheels from Top Italy, Alfa shock absorbers, Alfa dustproofing brushes, and Zamil seals for sliding windows) and (Guardian 6mm tempered clear interior glass with a 12mm air gap between the panes, and Guardian 6mm tempered exterior glass) and (American-made silicone sealant, American-made aluminum mosquito nets, 6cm zinc fixing screws + plastic fasteners from Masdar) )

Second – Technical Obligations:

A. Air Conditioning Grilles and Drainage Pipes:

1. The second party shall install the longitudinal grilles (slot diffusers) according to the drawings and in accordance with industry standards, without using tie wire, and shall deliver them to the supervisor.

2. The second party shall connect the condensate drainage pipes from the units to the nearest drainage point, equipping them with U-traps. The drainage pipes used shall be of either Nipro or locally manufactured type and shall be at least 1 inch in diameter.

B- Copper Pipes:

1) The second party shall supply and install copper refrigerant pipes of the American Mueller brand, with the diameter specified in the air conditioner catalog. Each pipe shall be insulated with black Remoflex insulation, following all details in the catalog regarding length. If the pipe exceeds the permitted length, it shall be supplied with refrigerant. The pipes shall be encased in agreed-upon PVC sleeves both inside and outside the building. The insulation thickness shall be increased if necessary, especially on the roof exposed to sunlight. An oil filter shall be installed according to the supplier’s catalog if the pipe length is excessive. The control cable shall be extended with the pipes according to the specifications outlined in the catalog and approved by the electrical engineer.

2) Thermal insulation shall be supplied and installed for each refrigerant pipe, approved by the first party and the supervising engineer.

3) The insulation shall be supplied and sealed for the copper pipes with wide black tape, approved by the first party and the supervisor. 4) Supply and installation of 2-inch PVC protective sleeves for the refrigerant pipes along the entire length of the pipes, as determined by the first party and supervisor, or 2-inch black flexible plastic sleeves for the copper pipes in areas where PVC pipes cannot be used.

5) The second party shall provide the thermostat wiring with an approved cable and install the thermostat level at the top, 15 cm away from the electrical switches.

6) The second party shall supply and install copper pipes with diameters suitable for the required diameters of the different air conditioning units and shall not be entitled to claim any additional amounts due to variations in pipe diameters. Secondly,

c- Air Conditioning Units:

1) The second party shall install the indoor units at a distance of no less than 60 cm from the back wall for a 2-ton unit, 75 cm for a 3-ton unit, and no less than 90 cm for a 5-ton unit, adhering to the installation dimensions specified in the air conditioner catalog. 2) The second party is obligated to install the outdoor units on refrigerant-proof rubber bases, maintaining the correct spacing between them and other units and walls, as specified in the air conditioner catalog for each model and capacity.

3) The supply and installation of rubber bases for the outdoor units of the air conditioners is subject to the approval of the first party and the supervisor.

4) The supply and installation of air conditioner drainage pipes and fittings, extending to the nearest bathroom for concealed units or to the floor for split units, is subject to the approval of the first party and the supervisor.

5) The second party is obligated to charge the units with refrigerant, operate them, and calibrate and balance the air conditioning system.

C. Air Ducts and Exhausts:

1) Air ducts will be supplied and installed using galvanized sheet metal, SABIC brand, as approved by the first party and the supervising engineer.

2) Connections between sheet metal sections will be installed securely and according to industry standards, as approved by the first party.

3) Air ducts will be insulated with 1-inch thick thermal insulation with a density of 24 kg/m³, either Kymco or Iveco brand, as recommended by the project supervisor and approved by the first party and the supervisor. The insulation must be secured with high-quality duct tape, ensuring a maximum spacing of 50 cm between tapes and proper adhesion between the insulation and the duct’s outer wall. This must be approved by the first party and the supervisor.

4) A special American-made sealant will be applied between duct joints, as approved by the first party and the supervisor.

5) Acoustic lining will be installed inside the air ducts, equipped with flexible connections where it connects to air conditioning fans. This must be approved by the first party and the supervisor. 6) Air ducts are to be installed on angle brackets (C-channels) mounted on galvanized, toothed metal supports (8-10 mm thick), with a maximum distance of 2 meters between each support, according to our specifications and as approved by the client and the supervisor. They are to be installed in the concrete structure according to technical standards, ensuring compliance with the building’s structural plans. This must be coordinated with the contractor responsible for construction, architecture, electrical, plumbing, and civil defense works.

7) Supply and installation of air outlets (vents), as approved by the client and the supervisor.

8) Supply and installation of flexible connections between the ducts and the indoor unit. The contractor must strictly adhere to the specified heights for the ducts and pipes to avoid interference with other works. In case of conflict with other items or the finished floor level, they must be removed and reinstalled without any additional costs. 9) The sheet metal used for the air ducts must be galvanized sheet metal of SABIC type or equivalent quality, as agreed upon with the supervising engineer. Its thickness must be at least 0.6 mm, and the thickness will vary depending on the dimensions of the air ducts and in accordance with our specifications and workmanship standards.

10) The second party is obligated to apply joint sealant to the corners of the air ducts to prevent air leakage.

11) Supply and install dampers on the air outlets to calibrate the airflow according to the drawings.

12) The blanking box must be insulated internally with Aermoflex sound insulation at least 9 mm thick and externally with 1-inch glass wool insulation. The external insulation requirement may only be waived with the approval of the supervising engineer.

Second – Technical Specifications Obligations:

1. Supply of gypsum board and cement board of all types as follows:

o Gypsum boards (fireproof), (humidity-resistant), and (fire and moisture-resistant) with a thickness of (12.5) mm from Mada Company.

o Cement board with a thickness of (12.5) mm.

2. Supply of metal structures for gypsum and cement board ceilings as follows:

o Supply of all galvanized steel sections for gypsum ceilings (main channel, furring channel, angle) with a thickness of 0.06 mm.

o Supply of galvanized suspension bars (6) mm thick with copper connectors (6) mm, along with the necessary installation accessories (wire clips and U-clips).

o Supply of all galvanized steel sections for cement board ceilings (main channel, furring channel, angle) with a thickness of 0.07 mm.

3. Method of executing gypsum and cement board ceilings.

o Verify the levels against the consultant’s approved plans before starting work.

o Install perimeter wall angles (2.5 cm x 2.5 cm) at the approved thicknesses, securing them with screws and plastic anchors every 50 cm. Ensure the angle is level along the entire perimeter.

o Install galvanized steel rebar suspension brackets (6 mm thick) with copper anchors at the required height. The first bracket should be no more than 30 cm from the wall, and subsequent brackets should be no more than 60 cm apart.

o Install a number of nuts on each rebar, along with a U-clip and a nut, and then secure it to a C-channel for gypsum board and cement board ceilings using U-clips. o Attach the omega rebar to the C-channel using wire clips, ensuring they are present at all ends and joints of the gypsum board panels. The ceiling is leveled to ensure it is perfectly aligned. Then, the gypsum boards are installed and secured with screws using drills, ensuring the distance between screws does not exceed 20 cm. The screws are embedded in the gypsum and cement board to facilitate the application of joint compound.

Fire and moisture-resistant gypsum board must be used in kitchens, bathrooms, and throughout the villa.

4. Installation of necessary openings:

Lighting openings, air conditioning and ventilation openings, maintenance openings, etc.

5. Quality Commitments:

Guaranteeing the flatness of gypsum and cement board ceilings, ensuring there are no sagging, undulations, or cracks.