KOI | GENERAL SPECIFICATIONS FOUNDATIONS AND TRENCHES 1. EXCAVATIONS: The architect, in consultation with the contractor, shall determine on site the final levels, heights of plinths, depths of foundation trenches and number of steps. Foundation trenches to be dug to a suitable depth and to be not less than 650mm wide for external and internal walls. Sides of trenches to be trimmed to full width from top to bottom and bottom of trenches to be level. Piling depths & diameters to be determined by the engineer. 2. CONCRETE: Concrete to be 25Mpa strength as supplied by Ready-Mix Companies. Concrete in foundations to be not less than 250mm thick to the widths shown on the working drawings. Surface beds to be not less than 100mm thick. 250mm micron polythene sheeting laid under surface bed – as Eng Spec. Mesh Ref 193 laid in surface bed. Vertical waterproofing to all external walls. 3. TERMITE PROOFING: Approved Termite Poison to be applied under surface bed.
6. LINTELS: The contractor shall, at his discretion, use pre-stressed concrete lintels or brick force above all door and door openings and windows. 7. SUPERSTRUCTURE WALLS EXTERNALLY Main Building and Outbuildings: 220mm cement bricks. 8. DOOR & FRAMES: Front Door: 813 x 2740 mm or as per plan (wooden). External Door: 813 x 2740 mm timber doors and frames. Internal Doors: 813 x 2740 mm timber frame and door. 9. WINDOW AND SLIDING DOORS: Windows: powder coated aluminium or architect alternative choice. Sliding Doors: powder coated aluminium or architect alternative choice. 10. WINDOW SILLS: External: Plastered sills to architect’s detail Internal: * Bathroom and Kitchens: Plastered or tiled sills to Architect’s detail * Balance of house: Plastered sills to Architect’s detail * Garage: Plastered sills to Architect’s detail.
4. FOUNDATION WALLS: To be built with cement stock bricks to Eng Specifications.
ROOF/ROOF COVERING
SUPERSTRUCTURE
11. ROOF CONSTRUCTION/COVERING: To engineers specifications.
5. DAMP PROOFING: Place and build in 375-micron polythene or other suitable damp proofing material under all superstructure walls and window sills as shown in drawings. Derbigum to retaining walls. To be determined by the engineer.