3. Exterior walls: predominant materials
[] 1 Masonry, bricks, blocks of cement, ticholos (bricks with holes), stones
[] 2 Wood, sheets of zinc, fibro-cement
[] 3 Mud (lumped, terron [earth with grass], adobe, fagina [wood lathe and mud])
[] 4 Tin or waste material
[] 5 Other
Title III. External walls: Predominant materials
123. With previous meticulous observation and with the aid of inhabitants of a dwelling who in many cases can give the appropriate information, register the material of which the exterior walls of the dwelling are principally constructed.
124. The following explanations will help to determine the nature of some of the materials mentioned in the four headings under this title:
a) Sheets of zinc are sheets of galvanized steel;
b) Flat undulated sheets of asbestos-cement [fibro] are also known by the name of the factory brand, like "dolmenit", "fibrolit", etc.;
c) Ticholos are bricks with holes.
125. Any other material that is not specified among the four headings above should be registered under "Other".
126. Waste materials have been defined in an above section.
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127. Make the respective notation with a sign ("X") in the corresponding box.