Interviewer instructions
Write "X" in the box opposite the kind of material used in the construction of the roof. This item can be answered through observation but if you are in doubt, ask the respondent on the material used mainly for the roof.
If two or more kinds of roofing materials are used, report the material used in most part of the roof. Thus, for a house with different kinds of roofs, report the material used in the main portion of the housing unit (usually containing the living room/sala and bedrooms). Specify the kind of construction material used for the roof if it is not one of the aforementioned categories.
Bamboo, when used as a roofing material, is included in the category for Wood. On the other hand, housing units in structures such as culverts, bridges, and others should have an "X" mark in the box opposite Makeshift/ salvaged/improvised materials.