| Value | Category |
|---|---|
| 1 | No walls. |
| 2 | Cane/palm/trunks. |
| 3 | Dirt/Mud/Dung |
| 4 | Bamboo with mud. |
| 5 | Stone with mud. |
| 6 | Uncovered adobe |
| 7 | Plywood |
| 8 | Cardboard |
| 9 | Reused wood. |
| 10 | Cement |
| 11 | Stone with lime/cement. |
| 12 | Bricks |
| 13 | Cement blocks |
| 14 | Covered adobe. |
| 15 | Wood planks/shingles |
| 77 | Other__ |