PSI - Issue 5

Patrícia C. Raposo et al. / Procedia Structural Integrity 5 (2017) 1102–1107 Patrícia C. Raposo et al. / Structural Integrity Procedia 00 (2017) 000 – 000

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damaged). The study of the origin of the water problems in the masonry walls, was made through a network of regularly spaced distributed observation points, where were measured the temperature and humidity for each building façade. 2.1.1. West facade In Fig. 2 is presented the network used in the measurement of temperature and water content in the West facade. In Table 1 are presented the values of temperature and relative humidity (RH) measured at the network points (Fig. 2). This last table shows that the temperature values of this façade, between points, are similar. Point P2 (23 °C) has the highest temperature and point P10 (22.2 °C) the lowest. The temperature at 50 cm of the wall is slightly lower than the temperature next to the wall surface, but in this case the lower value is located in point P5 (22.1 °C). The highest RH occurs at point P8 (27 %).

Table 1. Results for the west facade (adapted from: [8]).

Measuring points

°C

°C at 50cm

% RH

P1 P2 P3 P4 P5 P6 P7 P8 P9

22.6 23.0 22.6 22.4 22.3 22.5 22.4 22.3 22.5 22.2 22.4 22.5 22.5 22.6 22.7 22.5 22.3 22.3

22.2 22.6 22.3 22.2 22.1 22.3 22.2 22.3 22.3 22.3 22.3 22.3 22.3 22.4 22.5 22.3 22.4 22.3

0 0 0 0 0 0 5 8 0 0 0 0 0 0

27

P10 P11 P12 P13 P14 P15 P16 P17 P18

Fig. 2. Location of the network points of the west facade (image from: [8]).

7.5

27 12

2.1.2. East facade

The network points created for the east façade are showed in Fig. 3. Table 2 presents the obtained values for temperature and RH. The temperature in the wall had similar values between points, with point P11 (22.6 °C) with the highest temperature and point P7 (22.2 °C) with the lowest. The temperature at 50 cm, presents values, close to the surface’s values, being the highest value in point P14 (22.5 ºC) and lowest at points P2 and P4 (22 ºC). The RH maximum value occurs in the point P8 (8 %) and the lowest (0 %) at points P6 and P14.