RESPONSE OF WATTLE AND DAUB WALLS TO CONDENSATION PROBLEMS RESPOSTA DAS PAREDES DE QUINCHA AO RISCO DE CONDENSAÇÃO RESPUESTA DE LOS MUROS DE QUINCHA AL RIESGO DE CONDENSACIÓN

CUITIÑO-ROSALES, MARIA GUADALUPE; ESTEVES-MIRAMONT, ALFREDO; NAJAR, LAURA ELIZABETH

Habitat Sustentable

Universidad del Bío Bío

Año: 2022 vol. 12 p. 84 - 97

The response of earthen walls to humidity is a relevant issue when evaluating surface and interstitial condensation. This article analyzed the behavior against the humidity of three buildings with wattle and daub walls, taking into account the different layers of mud plaster and Castilla reeds. First, these were evaluated using the Iram 11.625 Standard and with the outdoor design data temperature, the indoor design temperature, and the thermal properties of the materials, obtaining the surface and dew temperature values for each case. It was observed that surface condensation did not occur in any case and for interstitial condensation, in all cases, in the layer close to the exterior reed there was the possibility of condensation, which can be optimized by using insulation on the outer or inner face depending on the climatic conditions. Based on in situ measurements with hobo dataloggers, indoor and outdoor temperature and relative humidity records were taken for winter. Surface and dew temperature curves were plotted and it was observed that in all cases the dew temperature values are lower than the surface temperature, verifying the lack of surface condensation.