Architecture Light and Ventilation Principles
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Architecture Light and Ventilation Principles

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Questions and Answers

What is the primary intent of the rule mentioned?

  • To restrict the use of windows
  • To increase the height of buildings
  • To limit the size of buildings
  • To ensure adequate light and ventilation (correct)

    • Which of the following is NOT listed as a variable affecting light and ventilation?

  • Setbacks
  • Room colors (correct)
  • Window sizes
  • Ceiling heights

    • How is site occupancy measured according to the content?

  • By considering only the building's height
  • At ground level and excluding courts and yards (correct)
  • Including all courts and yards
  • At the top of the building

    • What formula represents the relationship between PSO, TOSL, USA, and ISA?

    <p>TLA = PSO + TOSL</p> Signup and view all the answers

    What minimum value is indicated in the formulas provided?

    <p>USA</p> Signup and view all the answers

    Which of the following factors directly contributes to the adequacy of light in a building?

    <p>Size of the windows</p> Signup and view all the answers

    Which variable would most likely affect the ventilation in a building?

    <p>Ceiling heights</p> Signup and view all the answers

    What is the maximum value mentioned in the formulas provided?

    <p>ISA</p> Signup and view all the answers

    Which type of lot is typically defined as being surrounded by streets on all sides?

    <p>Corner through lot</p> Signup and view all the answers

    What characterizes a corner lot?

    <p>It must be adjacent to two intersecting streets.</p> Signup and view all the answers

    Which lot type is likely to have only one street abutting it?

    <p>Interior lot</p> Signup and view all the answers

    What is the defining feature of a corner through lot abutting three or more streets?

    <p>It has multiple entries from different streets.</p> Signup and view all the answers

    Which lot type generally offers the least accessibility to the public?

    <p>End lot</p> Signup and view all the answers

    Which lot type does not usually allow for significant development due to limited accessibility?

    <p>End lot</p> Signup and view all the answers

    What distinguishes an inside lot from an interior lot?

    <p>An inside lot is surrounded by other properties.</p> Signup and view all the answers

    Which of the following lot types is NOT expressly defined in the content?

    <p>Double lot</p> Signup and view all the answers

    What does the term 'yard' refer to in a building context?

    <p>The required open space between the outermost face of the building and the property lines.</p> Signup and view all the answers

    How is 'setback' defined?

    <p>The width of the yard.</p> Signup and view all the answers

    What is the minimum dimension required for courts?

    <p>2.00m</p> Signup and view all the answers

    What is the minimum area required for a court?

    <p>4.00sqm</p> Signup and view all the answers

    What is the minimum width for the passageway connecting inner courts to a street or yard?

    <p>1.20m</p> Signup and view all the answers

    Which of the following describes the relationship between a yard and a setback?

    <p>A setback is part of the yard.</p> Signup and view all the answers

    Which of these statements about courts is accurate?

    <p>Inner courts need a minimum area of 4.00sqm.</p> Signup and view all the answers

    What is stated about the open space around buildings?

    <p>It must follow specific yard and setback requirements.</p> Signup and view all the answers

    What is the minimum area required for a court?

    <p>3.00 sqm</p> Signup and view all the answers

    What is the maximum height allowed for a separation wall?

    <p>2.00 m</p> Signup and view all the answers

    In what type of dwelling units can front yards be used for parking?

    <p>Single-family dwelling units</p> Signup and view all the answers

    How much can the minimum dimension be reduced to in cluster living units?

    <p>1.50 m</p> Signup and view all the answers

    What is the maximum allowable extension above the roof line for a firewall?

    <p>400 mm</p> Signup and view all the answers

    Which zoning classification is NOT allowed for front yard parking?

    <p>Basic R-1</p> Signup and view all the answers

    If a carport is roofed, it is considered part of what?

    <p>The building footprint</p> Signup and view all the answers

    What is the minimum extension required for a firewall from building edges?

    <p>600 mm</p> Signup and view all the answers

    Which types of doors are prohibited as exit doors?

    <p>Revolving doors</p> Signup and view all the answers

    What is the maximum allowable height difference between the floor and landing at an exit door for Group A or B occupancies?

    <p>200mm</p> Signup and view all the answers

    What is the minimum required width of a corridor?

    <p>1.10m</p> Signup and view all the answers

    How much can a door reduce the required width of a corridor when fully opened?

    <p>200mm</p> Signup and view all the answers

    What is the maximum length for dead ends in a corridor?

    <p>6.00m</p> Signup and view all the answers

    What is the maximum reduction in corridor width allowed by doors in any position?

    <p>½</p> Signup and view all the answers

    What is the maximum allowable height difference between the floor and landing at an exit door in general situations?

    <p>50mm</p> Signup and view all the answers

    Which of the following is NOT permitted as an exit from a building?

    <p>Overhead doors</p> Signup and view all the answers

    Study Notes

    Light + Ventilation

    • Every building must have sufficient light and ventilation, and this should be considered during design, construction, and equipping phases.
    • The amount of light and ventilation needed depends on factors like setbacks, site occupancy, room sizes, ceiling heights, window sizes, and courts.

    Site Occupancy

    • Site occupancy is measured at ground level excluding courts, yards, and light wells.
    • Total Land Area (TLA) = Primary Site Occupancy (PSO) + Total Open Space Land (TOSL)
    • TOSL = Unusable Site Area (USA) + Internal Site Area (ISA)
    • USA is the minimum value, while ISA is the maximum value.
    • Refer to Table VII.1 on page 131 for specific USA and ISA values.

    Lot Types

    • The Code defines seven types of lots:
      • Inside lot
      • Interior lot
      • Corner lot
      • Through lot
      • Corner through lot
      • Corner through lot abutting 3 or more streets
      • End lot

    Yards and Setbacks

    • Yard: The required open space between a building's outer face and the property lines.
    • Setback: The width of the yard.

    Courts

    • Minimum court dimension: 2.00m
    • Minimum court area: 4.00sqm
    • All inner courts need to be connected to a street or yard by a passageway at least 1.20m wide.

    Joining Of Courts

    • In cluster living units with adjacent courts, the minimum dimension can be reduced to 1.50m.
    • Minimum area per court remains 3.00sqm.
    • Maximum height of a separation wall between courts: 2.00m.

    Parking Spaces and Carports

    • If a carport has a roof, it counts as part of the building footprint and not the TOSL.

    Front Yards As Parking

    • Front yard parking is allowed only for single-family dwellings classified as:
      • Basic R-2
      • Basic R-3
      • R-4

    Fire Wall Extensions

    • Above the roof line: 400mm
    • Under the eaves: 300mm
    • From the building edges: 600mm

    Prohibited Doors

    • The following doors are prohibited as exit doors:
      • Revolving doors
      • Sliding doors
      • Overhead doors

    Floor Level Change At Doors

    • There needs to be a floor or landing on each side of an exit door.
    • Maximum floor/landing difference from the door threshold: 50mm downwards.
    • Exception: For Group A or B occupancies, a door may open over the top step as long as:
      • The landing is no more than 200mm from the floor level.
      • The door does not swing over the top step.

    Corridors

    • Minimum corridor width: 1.10m
    • This width needs to be unobstructed, except for trim, handrails, and open doors (these can reduce the width by a maximum of 200mm).
    • Doors in any position cannot reduce the width by more than half.

    Dead Ends

    • Maximum dead end length: 6.00m

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    Description

    Explore the essential principles of light and ventilation in building design. This quiz covers site occupancy, lot types, and the significance of yards and setbacks. Test your knowledge of how these factors influence architectural planning.

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