Questions 45-55 should be filled out for households residing in Conventional residential unit (number 1 in Question 44)
52. Type of housing unit's framework
[] 20 Armed concrete
[] 30 Other
53. Principal construction materials used in the housing unit
[] 31 Brick and iron or stone and iron
[] 32 Brick and wood or stone and wood
[] 33 Concrete blocks (with any type of ceiling)
[] 34 Bricks only or stone and brick
[] 35 Wood only
[] 36 Sun-dried brick and wood
[] 37 Sun-dried brick and clay
[] 38 Other
35. General explanation about Questions 45 through 55
Fill these questions only for those households who live in a conventional residential unit (box 1 question 44) and leave it blank for households living in other types of units.
43. Type of housing unit's framework, Question 52
Ask the type of the structure of the building and mark the proper box. If the respondent is not able to identify the type of structure, help them with the following comments:
A unit's framework/structure is the joint complex (bases and columns and beams, etc.) that holds the housing unit.
In this census, the structures are categorized as follow:
[] 10, Metal: if the framework is set with iron beams, mark box 1. In this type, the beams are jointed and make an integrated framework which holds the weight of the structure.
Some visual features of a building with metal framework are as follows:
- In cases that some iron beams have been used in an "X" or "V" shape in side walls to improve the building against earthquake, it is usually visible in the walls.
- In cases that metal plates have been used in the joints of columns and beams to improve the frame, the signs are visible in the ceiling.
[] 20, Armed concrete: if the framework is made of armed concrete (concrete with reinforcement and bars) and is holding the weight of the structure, mark box 2. The most important features of an armed concrete frame are as follows:
- In 3 stories and more buildings, in the ground or lower levels, main beams are visible in the form of an exertion lower than the ceiling.
[] 30, Other: if the framework does not match the above mentioned ones, mark box 3, such as for buildings with a ceiling where metal has been used and has porter walls. In such buildings:
- The walls are usually thicker compared to the buildings with metal or concrete framework.
44. Principle construction materials used in the housing unit, Question 53
Fill this column only for the units for which you marked box 3 (other) in question 52 and leave it blank for other housing units. Ask the principle materials used in building walls and the ceiling of the housing unit and identify its type based on the following comments, marking one of the 1 to 8 boxes.
[] 31, Brick and iron, or stone and iron: in buildings made of brick and iron or stone and iron, the ceiling is made of iron beams and brick and the walls are made of brick or stone. The walls (instead of the metal columns in metal framed buildings) hold the weight of the structure. Therefore, these buildings are also called iron and brick (barrel vault) or stone and brick with porter walls. The walls are usually thicker than that of metal framed buildings.
[] 32, Brick and wood, or stone and wood: in buildings made of brick and wood or stone and wood, the ceiling is made of wood, lumber and brick, and the porter walls are of brick or stone. Therefore the weight of the ceiling transfers to the walls through the joints of columns and walls and the walls hold the weight of the building.
[] 33, Concrete blocks (with any type of ceiling): in these structures, concrete blocks are used in the walls. In the ceiling, joist or wood is used.
[] 34, Bricks only or stone and brick: in the walls and ceiling of these structures, brick or stone and brick are mainly used. The ceiling is built in a manner that enables it to not use iron beams or wood like domes.
[] 35, Wood only: in these structures which are more popular in humid areas, wood is largely used.
[] 36, Sun-dried brick and wood: the main material used in this kind of building is sun-dried brick. In these structures, sun-dried bricks and wood are used in the ceiling and sun-dried bricks or sun-dried bricks and wood together are used in the walls.
[] 37, Sun-dried brick and clay: these structures are mostly built by sun-dried bricks and the clay is used to keep the bricks together.
[] 38, Other: if the main material used in the building is none of the above mentioned, mark box 8.
Note: The materials used for the finished look of the building are not considered as the main material.