4. What is the predominant material of the exterior walls of the dwelling? (VivDV01))
(Read the question and select the appropriate option according to the response)

• If it deals with a private unoccupied household, this module doesn't apply and the system returns to the list of addresses.
• If it deals with a collective occupied dwelling, the system displays below the questions regarding the people that habitually reside in the household.
• If it deals with a private dwelling and it is detected that it is occupied, the system displays the questions that will be presented below.

What is the predominant material of the exterior walls of the dwelling?

Select the material used predominately in the construction of the exterior walls. If the construction is made of more than one material, make reference to the one used in greater proportion.

The options of the response are listed in order from materials of higher quality to materials of lesser quality.

The following clarifications will help you determine the nature of some of the materials:

• Masonry: bricks, , stones, or blocks with finishing: This also includes those materials that, for aesthetic and structural reasons give an "exposed brick" finished look
• Masonry: bricks, slabs, stones, or blocks without finishing: This is just like the last category but lacks the coating of the material like for example, "exposed brick," stone, plaster, among others

• Lightweight materials (wood or sheets/plates) with finishing: This deals with the flat or wavy sheets made of metal or fiber cement to which some type of thermic or anti-humidity insulator has been added. In general, the finishing isn't exterior but rather interior, for example, espuma plast.
• Lightweight materials (wood or sheets/plates) without finishing: this is just like the previous case, but without thermic or anti-humidity insulator. If the walls are wood, it should be classified as a lightweight material without finishing.
• Clay (sod, adobe, "fajina", (wood frame with soil stabilized with straw and other components): this is the humid mix of clay, sand, and straw dried by the sun.
• Waste Materials: Materials used previously for objectives other than those of the construction of dwellings, or deteriorated materials (wood, sheets/plates, tin plates, sackcloth, etc.). In the constructions that use this kind of materials, its parts are generally loose and the joints open to wind and rain penetration.
• Other: this consists of materials that cannot be classified by any of the previous categories. The major part of the cases that are presented are covered in the previous cases, so that this option will only be used in very exceptional cases.