Norms for Measuremen of Built up Area 1) Basement - Payble Area - 100% 2) Built - up Area of each floor ( excluding , service duct , shaft , ducts, staircase , and refuge area) - Payble Area - 100% 3) Refuge area within the building perimeter - Payble area- 70% 4) Refuge area outside building perimeter ( Cantilever projection which requires staging else 50%) - Payable Area - 100% 5) Electrical duct ( 100% of slab casted only ) - Payble Area - 100% 6) Fire fighting duct ( 100% of slab casted only ) - Payble Area - 100% 7) Plumbing duct ( 100% of slab casted only ) - Payble Area - 100% 8) Lift machine room - Payble area- 100% 9) Staircase - Payble Area - 100% 10) Paving around building 20' if applicable - Payble Area - 0% 11) Lift wells - Payble Area - 50% 12) Decks - Payble area- 50% 13) Flower beds - Payble Area - 50% 14) UG/ OH tank - Payable area- 0% 15) Voids / Cut outs / Chajja/ Elevation features/ canopy - 0% 16) Double height areas ( above 4.5m up to 6.25m) - Payble area- 125% 17) Double height areas ( above 6.25m up to 9.0m) - Payble area- 150% 18) Double height areas ( above 9.0m up to 11.25m) - Payble area- 175 % 19) All areas which have a top and bottom slab but have FTF height lesser than 2.1m - Payble Area - 50% This may vary according to builders choice.
Cladding materials are used to enhance aesthetic appeal of walls, kitchen slab, stairs, roofs, ceiling, etc. Slate, granite, marble, clay tiles, mosaic, glass, wall papers etc. are the commonly used cladding materials in buildings.
Wire meshes embedded with cement and baby jelly is known as ferrocement. They are used for making door/window frames and shutters, partition walls, signboards, furnitures and even boats.
These are synthetic materials made of nylon, PVC, polypropylene etc. They last long even when buried under soil. Geotextiles, geogrids, geomembranes and geocomposites are commonly used geosynthetics. These materials are used for soil stabilization.
It is a product produced by mixing polymeric diol or triol with a silicon surfactant and a catalyst. This has elasticity of rubber, combined with the toughness of metal. It is used for making gaskets, tiers, bushings, shoe soles, pipes, waterproofing chemicals, etc.
It is a thermosetting polymer. It possesses excellent mechanical and adhesive properties. It is used with paints also.
It is a general-purpose crystal polysterene. It can be cut easily with knife or saw. It contains 3–6 million discrete cells/litre. It has insulating efficiency against heat, sound, humidity and shock. It is used as packing material and display board.
• Preventing passage of water from one side of a surface to other side under normal hydrostatic pressure is known as waterproofing while damp-proofing is to prevent transfer of water by capillary action. • Bituminous materials, integral compounds, epoxy based materials, slurry coat and elastomeric materials are various waterproofing materials.
Sealants are the substances used to seal cracks or joints between wall and window frames, glazing and window frame or between roofing sheets. Elastomeric sealants are most efficient. They are based on silicon, acrylic or polysulphide.