Hygrothermic rehabilitation in the exterior panels of prefabricated buildings by external thermal insulation composite systems (ETICS) with rendering : two "case studies", located in the Lisbon Metropolitan Area-SAC and QM [Texto policopiado] / Alberto Cruz Reaes Pinto

Contém bibliografia, f. 340-346

Tese de doutoramento em Construction and Property Management, University of Salford, 2001

Summary:
I. Introduction, f. 1
1. Reasons for research, f. 8
2. Background, f. 11
3. Main problems, f. 16
4. Research methodologies, f. 19
5. Guide to thesis, f. 25
II. The Fiorio process, f. 28
1. General description, f. 29
2. Composite elements, f. 30
3. The manufacture of the elements, f. 44
4. Assembly on site, f. 49
5. The pathologies of the Fiorio process, f. 53
III. Development of industrialised construction, particularly prefabrication, f. 59
1. Reasons for industrialised construction development prefabrication, f. 62
2. First period from 1945-1974, f. 64
3. Second period from 1975-1997, f. 71
4. The pathologies, f. 80
5. Tendencies, f. 86
IV. Research methodologies, f. 93
1. Research methodologies, f. 98
V. The proposed conceptual framework, f. 121
1. Proposed conceptual framework, f. 122
2. Data collection from case studies, f. 125
3. Definition of the found pathologies, f. 218
4. Current solutions and their disadvantages, f. 220
5. Study of the rehabilitation of the exterior existing panels, f. 225
VI. Proposed model test and validation, f. 241
1. Proposed solution discussed with experts, f. 243
2. Final solution presentation to resolve external panels building pathologies, p. 259
VII. Conclusions and recommendations and further research, p. 271
1. Conclusions and found solution justification, f. 273
2. Recommendations and further research, f. 277

Abstract:
The use of new technologies and materials in the industrialised construction processes has led to an increase and worsening in the level of defects, especially those fundamentally linked to the hygrothermic comfort of the external walls. The aim of this research is, therefore, to analyse and study the behaviour of exterior panels of prefabricated buildings, built by the FIORIO process, three decades ago, with particular reference to the perspective of hygrothermic comfort. These buildings are part of two residential complexes - SAC and QM ("two case studies") located in Lisbon's metropolitan area.
The methodology of this research is developed to define the pathologies and test the solutions found, considering two case studies.
The proposed solutions will be potentially usable following testing and validation with experts' views and practical solution adopted on site. Two solutions were studied which differ from the position of the thermal insulation material in relation to the external walls. After a technical comparison of these two solutions chosen (final proposal) considers the thermal insulation from the outside position perspective.
The final solution for rehabilitation of the external walls of the SAC and QM buildings will be external insulation systems, which are totally from the existing walls and, bearing in mind, the counsel of ETA Guideline on ETICS (2000). This solution aims not only at the hygrothermal rehabilitation of the external walls of these buildings and their resultant energy rehabilitation but also the improvement of the global quality of the buildings so as to prolong their lifecycle.

With this research it is intended to contribute to future investigation in order to enhance the efficacy of those systems. Through the use of new composite materials of lesser thickness, with better global quality characteristics and the possibility of being re-usable and recyclable within a sustainable construction perspective, it is expected that improvement will be achieved. (Alberto Cruz Reaes Pinto)