PART 3 GENERAL BUILDING REQUIREMENTS, CONTROL AND …

1 PART 3 GENERAL BUILDING REQUIREMENTS, CONTROL AND REGULATION PART 3 Pages Chapter 1 GENERAL BUILDING REQUIREMENTS 3-1 Chapter 2 CLASSIFICATION OF BUILDINGS BASED ON OCCUPANCY 3-29 Chapter 3 CLASSIFICATION OF BUILDING CONSTRUCTION TYPE BASED ON FIRE RESISTANCE 3-83 Chapter 4 ENERGY EFFICIENCY AND SUSTAINABILITY 3-95 Appendices 3-105 2-iii Vol. 1 TABLE OF CONTENTS PART 3 GENERAL BUILDING REQUIREMENTS, CONTROL AND REGULATION Chapter 1 GENERAL BUILDING REQUIREMENTS SCOPE 3-1 TERMINOLOGY 3-1 LAND USE CLASSIFICATION 3-5 OCCUPANCY AND CONSTRUCTION CLASSIFICATION OF BUILDINGS 3-5 REQUIREMENTS OF PLOTS 3-7 GENERAL Requirements 3-7 Clearance from Overhead Electric Lines 3-7 Road.

2 Formation level and Plinth Levels 3-7 Boundary Wall 3-8 PLOT SIZES 3-8 MEANS OF ACCESS 3-8 Internal Access Road 3-8 Pedestrian Path or Walkway or Footpath 3-9 OPEN SPACES WITHIN A PLOT 3-9 GENERAL HEIGHT AND AREA LIMITATIONS 3-15 OFF STREET PARKING SPACES 3-17 STREET ENCROACHMENT 3-18 COMMUNITY OPEN SPACE AND AMENITIES 3-18 MINIMUM STANDARD OF A DWELLING 3-18 REQUIREMENTS OF PARTS OF BUILDINGS 3-18 Plinth and Formation Levels 3-18 Room Dimensions 3-18 Kitchen 3-19 Bathroom and Toilets 3-19 Stairways 3-20 Mezzanine Floor 3-21 Lofts 3-21 Cabins or Chambers 3-21 Store Room 3-21 Private Garage 3-21 Basement 3-21 Entrance to the BUILDING 3-22 Roof Drainage 3-22 Part 3 GENERAL BUILDING Requirements, CONTROL and Regulation 2-iv Vol.

3 1 Parapet 3-22 Septic Tank 3-22 LANDSCAPING 3-22 DAMP- proofing AND WATERPROOFING OF FLOORS AND WALLS 3-22 EXISTING BUILDINGS 3-23 BUILDINGS AND PLACES OF HISTORICAL OR ARCHITECTURAL VALUE 3-23 VENTILATION, LIGHTING AND SANITATION 3-23 AIR-CONDITIONING AND HEATING 3-24 PROVISION OF LIFTS AND ESCALATORS 3-24 SOUND INSULATION 3-25 THERMAL INSULATION 3-25 LIGHTNING PROTECTION OF BUILDINGS 3-25 RAT proofing AND TERMITE proofing OF BUILDINGS 3-25 REQUIREMENTS FOR BUILDINGS IN FLOOD PRONE AND COASTAL REGIONS OF BANGLADESH 3-25 Flood Prone Areas 3-25 Surge Prone Areas 3-26 REQUIREMENTS FOR BUILDINGS IN OTHER DISASTER PRONE AREAS 3-27 SPECIAL PROVISION FOR STORAGE OF DANGEROUS GOODS AND THEIR CLASSIFICATION 3-27 LIST OF RELATED APPENDICES 3-28 Chapter 2 CLASSIFICATION OF BUILDINGS BASED ON

4 OCCUPANCY OCCUPANCY CLASSIFICATION 3-29 CHANGE OF USE 3-35 MIXED OCCUPANCY 3-35 GENERAL REQUIREMENTS OF ALL OCCUPANCIES 3-36 Location on Property 3-36 Allowable Floor Areas 3-37 Permitted Types of Construction 3-37 GENERAL provision for High-Rise Buildings 3-38 Helipads 3-38 Universal Accessibility 3-39 REQUIREMENTS FOR OCCUPANCY A - RESIDENTIAL BUILDINGS 3-39 Construction, Height and Allowable Area 3-39 Location on Property 3-39 Access and Exit Facilities and Egress System 3-39 Lighting and Ventilation 3-39 Sanitation 3-39 Minimum Dimension of Habitable and Non-habitable Rooms 3-39 Part 3 GENERAL BUILDING Requirements, CONTROL and Regulation 2-v Vol.

5 1 Fire Detection, Alarm, Evacuation and Extinguishment 3-39 Shaft and Exit Enclosure 3-40 REQUIREMENTS FOR OCCUPANCY B - EDUCATIONAL BUILDINGS 3-40 Construction, Height and Allowable area 3-40 Location on Property 3-40 Access and Exit facilities and Egress System 3-40 Lighting, Ventilation and Sanitation 3-40 Minimum Dimensions of Class Rooms, Common Toilets and Staircases 3-40 Shaft and Exit Enclosure 3-40 Fire Detection, Alarm, Evacuation and Extinguishment System 3-40 REQUIREMENTS FOR OCCUPANCY C - INSTITUTIONAL BUILDINGS 3-41 Construction, Height and Allowable Area 3-41 Location on Property 3-41 Access and Exit Facilities and Egress System 3-41 Lighting, Ventilation and Sanitation 3-41 Shaft and Enclosure 3-41 Fire Detection, Alarm, Evacuation and Extinguishment System 3-41 REQUIREMENTS FOR OCCUPANCY D HEALTH CARE FACILITIES 3-41 Construction, Height and Allowable Area 3-41 Location on Property 3-41 Access and Exit Facilities and Egress System 3-41 Lighting, Ventilation and Sanitation 3-41 Shaft and Enclosure 3-41 Fire Detection, Alarm.

6 Evacuation and Extinguishment System 3-42 REQUIREMENTS FOR OCCUPANCY E BUSINESS 3-42 Construction, Height and Allowable Area 3-42 Location on Property 3-42 Access and Exit Facilities and Egress System 3-42 Lighting, Ventilation and Sanitation 3-42 Shaft and Enclosure 3-42 Fire Detection, Alarm, Evacuation and Extinguishment System 3-42 REQUIREMENTS FOR OCCUPANCY F MERCANTILE BUILDINGS 3-42 Construction, Height and Allowable Area 3-42 Location on Property 3-42 Access and Exit Facilities and Emergency Escapes 3-42 Lighting, Ventilation and Sanitation 3-42 Shaft and Enclosure 3-43 Part 3 GENERAL BUILDING Requirements, CONTROL and Regulation 2-vi Vol.

7 1 Fire Detection, Alarm, Evacuation and Extinguishment System 3-43 Special Hazards 3-43 REQUIREMENTS FOR OCCUPANCY G INDUSTRIAL BUILDINGS 3-43 Construction, Height and Allowable Area 3-43 Location on Property 3-43 Access and Exit Facilities and Egress System 3-43 Lighting, Ventilation and Sanitation 3-43 Shaft and Enclosure 3-43 Fire Detection, Alarm, Evacuation and Extinguishment System 3-44 Special Hazards 3-44 REQUIREMENTS FOR OCCUPANCY H STORAGE BUILDINGS 3-44 Construction, Height and Allowable Area 3-44 Location on Property 3-44 Access and Exit Facilities and Egress System 3-44 Lighting, Ventilation and Sanitation 3-44 Shaft and Enclosure 3-44 Fire Detection, Alarm, Evacuation and Extinguishment System 3-44 Special Hazards 3-44 REQUIREMENTS FOR OCCUPANCY I ASSEMBLY BUILDINGS 3-45 Construction, Height and Allowable Area 3-45 Location on Property 3-45 Access and Exit Facilities and Egress System 3-45 Lighting, Ventilation and Sanitation 3-45 Shaft and Enclosure 3-45 Fire Detection, Alarm.

8 Evacuation and Extinguishment System 3-45 Motion Picture Projection Rooms 3-46 Sports Facilities 3-46 Amusement BUILDING Fire protection System 3-47 REQUIREMENTS FOR OCCUPANCY J HAZARDOUS BUILDINGS 3-47 GENERAL 3-47 Special Provisions 3-49 Construction, Height and Allowable Area 3-50 Location on Property 3-52 Access and Exit Facilities and Emergency Escapes 3-53 Lighting and Ventilation 3-53 Sanitation 3-53 Shaft and Exit Enclosures 3-53 Part 3 GENERAL BUILDING Requirements, CONTROL and Regulation 2-vii Vol. 1 Fire detection, Alarm, Evacuation and Extinguishment system 3-53 Explosion CONTROL 3-53 Special Hazard 3-54 REQUIREMENTS FOR OCCUPANCY K GARAGE BUILDINGS 3-54 Construction, Height and Allowable Area 3-54 Location on Property 3-55 Access and Exit Facilities and Emergency Escapes 3-55 Lighting, Ventilation and Sanitation 3-55 Shaft and Enclosure 3-55 Fire Detection, Alarm, Evacuation and Extinguishment System 3-55 REQUIREMENTS FOR OCCUPANCY L UTILITY BUILDINGS 3-55 Construction.

9 Height and Allowable Area 3-55 Location on Property 3-55 Access and Exit Facilities and Egress System 3-55 Lighting, Ventilation and Sanitation 3-55 Shaft and Enclosure 3-55 Fire Detector, Alarm, Evacuation and Extinguishment System 3-56 Special Hazard 3-56 REQUIREMENTS FOR OCCUPANCY M MISCELLANEOUS BUILDINGS 3-56 GENERAL 3-56 Location on Property 3-56 Access and Exit Facilities and Emergency Escapes 3-56 Lighting, Ventilation and Sanitation 3-56 Shaft and Exit Enclosures 3-56 Fire Detection, Alarm, Evacuation and Extinguishment System 3-56 Chapter 3 CLASSIFICATION OF BUILDING CONSTRUCTION TYPES BASED ON FIRE RESISTANCE GENERAL 3-83 Classification by Type of Construction 3-83 Group I.

10 Non-combustible Construction 3-84 Group II. Combustible Construction 3-84 Separated Occupancy and Construction 3-88 Fire Zones 3-88 Permissible Types of Construction for Various Occupancies 3-89 Exterior Walls 3-89 Basement Floor 3-89 Restricting Horizontal and Vertical Spread of Fire 3-89 Part 3 GENERAL BUILDING Requirements, CONTROL and Regulation 2-viii Vol. 1 Exceptions to Fire Resistance Requirements 3-89 Shaft Enclosures 3-91 Expansion and Contraction Joints 3-91 Weather Protection 3-92 Members Carrying Walls 3-92 Parapets 3-92 Projections 3-92 Guards and Stoppers 3-92 Insulation 3-93 Atrium 3-93 Mezzanine Floors 3-94 Chapter 4 ENERGY EFFICIENCY AND SUSTAINABILITY SCOPE 3-95 Rationale for Sustainable/Green Buildings 3-95 DEFINITION 3-95 SITE SUSTAINABILITY 3-96 Mandatory Unpaved Area 3-96 Site Drainage and Run-Off Coefficient 3-96 Vegetation Plan 3-96 Irrigation Plan 3-96 Rain Water Harvesting System 3-97 BUILDING