Table 1: Pathology by the lack of insulation in the vertical envelope.

Lack of Insulation Located	Pathology
On the opaque part of the façade	Interstitial condensation due to the dew point temperature being reached inside the outer sheet of the enclosure. It usually happens in combination with the absence of adequate ventilation in the air chamber (if any). Surface condensation on the inside of the building, in damp spaces (kitchens, bathrooms, etc). This effect occurs in combination with inadequate ventilation. As a positive effect, the lack of insulation causes the incorporation of the total mass of the enclosure to the inner mass (providing a greater thermal inertia).
Where the façade is in contact with the structure (pillars and slabs)	Surface condensation on the inside of the enclosure, in the areas of thermal bridges produced by direct contact of the structure with the façade and the interior environment. This effect usually occurs in combination with the absence of adequate vapor barriers and/or the absence of ventilated air chambers. Cracks produced on the outer sheet and/or inner partition of the façade, caused by the daily cycles of expansion-contraction of the structure.
Openings – Windows and doors (usually due to the use of single glass or blind boxes which are too permeable to air)	An excessive loss of energy in heating and/or cooling, both due to the high thermal transmittance and to excessive flow of air -from the outside- entering through faulty seals and joints poorly solved. Water condensation on the inside of the enclosure. Moisture on the inside of the enclosure, at the bottom of the opening produced by the condensation in the joinery.