Questionnaire Text

Questionnaire form view entire document: text image

Part 3. Information on housing

55. What is the main construction material of the pier (or the pivot or the load-bearing wall) of this dwelling/flat?

[] 1 Durable material (concrete, brick or stone, steel or iron or durable wood)
[] 2 Undurable materials (wood of low quality or bamboo, soil, other)

Questionnaire instructions view entire document: text image

Part V: Instructions on how to question and record information on the census form

Part 3: Information about housing
The DTV collects information about the housing situation of the household. Do not collect housing information for specific demographics.

Question 55: What is the main material for columns (or pillars, or load-bearing walls) of this house/apartment?
A column (or pillar, or load-bearing wall) is a structural element built to support a roof (or ceiling, or beam).

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The determination of the quality of timber used to make columns (or pillars, or load-bearing walls) is based on Vietnam's current classification of timber groups, in which durable timbers are those belonging to groups I, II, III, IV, V; low quality, fragile timber are those belonging to groups VI, VII and VIII or young trees, with a diameter of less than 10 cm. Details of timber species are presented in the "Nationwide unified provisional classification of timber types table" in Appendix 13.

Some column materials are specified as durable materials, including: reinforced concrete, brick/stone, and durable iron/steel/wood.

Some materials for making columns are specified as temporary materials, including: low-quality wood/bamboo, earth, ...

In case the household regularly lives in 2 or more houses on the same lot, the main material for making columns is taken from the main house.