The construction material of the roof and wall provides information of the construction, replacement and improvement of housing units.

This indicator provides data in evaluating construction statistics, programme implementation, and for estimating the investment, past and future, in housing construction. It also determines how many of the households are housed in structurally acceptable housing units. Structural acceptability of housing units implies that these are made of durable construction materials that will safeguard the household occupants from adverse climatic effects and provide protection and privacy.

Cross out the circle 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.

The kinds of construction materials of the roof are as follows:

If two or more kinds of materials are used, report the material most used. Thus, for a house with different kinds of roofs, report the material used in the main portion (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 categories mentioned above it.
Bamboo when used as roofing is included in category of Wood.

Housing units in structures such as culverts, bridges, etc. should have a marked circle opposite Makeshift/salvaged/improvised materials.