Interviewer instructions
If there is more than one type of floor material, the interviewer will record the main one. If there is not a significant main one, the interviewer will record the one of highest value. You do not need to ask this question if it is obvious by looking around. But if, for example, the floor is covered with grass, you should ask what material is below the grass. If the material below the grass is of higher value (for instance cement), you should report the material underneath.