Table 1.

Dwelling requirements evaluated.

Requirement issued by Health Ministry Decree [14]	Description
Poor ventilation and illumination	Window/floor surface ratio lower than 1 : 8
Damp	Presence of damp on vaults and walls
Incomplete/absent services	Absence or incomplete presence of bathrooms, kitchens, running water
Unhygienic dwelling	Presence of signs of damp not treatable with simple surface maintenance, scarce window/floor surface ratio, presence and quality of the heating systems, and room floor-size
Overcrowded dwellings	No. of individuals residing in the dwelling in relation to its surface area higher than the value envisaged by articles 2-3 of the 1975 Ministerial Decree