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DIAGNOSIS OF PAINTED WOOD CEILING PLANKS FROM AN EIGHTEEN CENTURY BUILDING (a) (b) (c) (d) Fig. 2 – Ceiling panel nº 1. Details (a) zone with detachment of the painting; (b) severe cracking; (c) moisture stain better seen in the back view and (d) insect damage and consequent loss of material The planned intervention in this panel, in what respects the conservation of the wooden substrate, will again involve the careful cleaning of the surfaces followed by spot impregnation, namely of the holes caused by metal elements, with an acrylic resin in organic solvent. Fig. 3 – Front view of ceiling panel nº 2 108
WOOD SCIENCE FOR CONSERVATION OF CULTURAL HERITAGE (a) (b) (c) Fig. 4 – Ceiling panel nº 2. Details of rear face (a) dust deposits and moisture stains; (b) dust deposits and corrosion stains; (c) bow, severe cracks and moisture stains 2.3. Ceiling panel nº3 This structure, of approximately 2.05 x 1.673 m, is formed by nine planks with polychromes and the usual decoration motifs of the “brutesco” in this case very similar to the ones applied in ceiling panel nº 1 (Fig. 5) . The planks, of Portuguese chestnut wood, are made mostly of heartwood in reasonable state of conservation though with problems similar to those described for ceiling panel nº 1. The loss of material was, in the case of this panel, more evident and had a stronger impact in the painted surface (Fig. 6). The planned intervention in this panel, in what respects the conservation of the wooden substrate, will involve again the careful cleaning of the surfaces and the subsequent use of the two complementary techniques described: application of small grafts of wood and consolidation of the unpainted surface with an acrylic polymer in organic solvent. 3. Future work The intervention described, done within the final year project of the Specialized Technical Courses carried out by FRESS, was considered important not only to preserve the interesting features of the panels but also to allow their display in future exhibitions planned for the Museum of Fundação Ricardo Espírito Santo Silva. The present paper dealt with the initial steps of the restoration of the wooden supports of three painted ceilings from the eighteen century. In parallel, measures were also taken to clean and restore the paintings. As conclusion of this work it will be necessary to build a new wood structure to support each panel. These new structures will be made in a softer wood to sustain the panel’s movements and to avoid further cracking and will allow their planned display. Acknowledgements To all students and teachers of the Specialized Technical Courses in “Conservation and Restoration of Wood and Wood Furniture” and in “Conservation and Restoration of Wood Paintings”. To Museum of Fundação Ricardo Espírito Santo Silva for allowing the use of the objects and to Instituto de Artes e Ofícios where all the restoration work is ongoing. 109
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Proceedings e report 67
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Wood science for conservation of cu
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SUMMARY Introduction ..............
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WOOD SCIENCE FOR CONSERVATION OF CU
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INTRODUCTION These proceedings of a
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(A) MATERIAL PROPERTIES
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SORPTION OF MOISTURE AND DIMENSIONA
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VIBRATIONAL PROPERTIES OF TROPICAL
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CREEP PROPERTIES OF HEAT TREATED WO
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MEASUREMENT OF THE ELASTIC PROPERTI
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ELASTIC PROPERTIES OF MINUTE SAMPLE
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4. Results Young's modulus (10^4 Mp
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PREDICTION OF LINEAR DIMENSIONAL CH
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DIMENSIONAL CHANGE OF UNRESTRICTED
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DIMENSIONAL CHANGE OF UNRESTRICTED
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AGEING OF WOOD - DESCRIBED BY THE A
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90 30 0 3,0E-03 - 2,0E 2,0E-03 - 1,
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4. Application HYGRO-LOCK INTEGRATI
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RESEARCH ON THE AGING OF WOOD IN RI
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RESEARCH ON THE AGING OF WOOD IN RI
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Xylarium Database RESEARCH ON THE A
Page 62 and 63: AGING WOOD FROM CULTURAL PROPERTIES
Page 64 and 65: AGING WOOD FROM CULTURAL PROPERTIES
Page 66 and 67: STRENGTH AND MOE OF POPLAR WOOD (PO
Page 68 and 69: STRENGTH AND MOE OF POPLAR WOOD ACR
Page 70 and 71: STRENGTH AND MOE OF POPLAR WOOD ACR
Page 72 and 73: PHOTODEGRADATION AND THERMAL DEGRAD
Page 79 and 80: ROMANIAN WOODEN CHURCHES WALL PAINT
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Page 85 and 86: DISINFECTION AND CONSOLIDATION BY I
Page 87 and 88: 3. Results and discussion WOOD SCIE
Page 105 and 106: FUNGAL DECONTAMINATION BY COLD PLAS
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Page 115 and 116: STUDIES ON INSECT DAMAGES OF WOODEN
Page 121 and 122: TERMITE INFESTATION RISK IN PORTUGU
Page 127 and 128: BIODETERIORATION OF CULTURAL HERITA
Page 131 and 132: 4. Causes of biodeterioration WOOD
Page 133 and 134: DEGRADATION OF MELANIN AND BIOCIDES
Page 139 and 140: MOULD ON ORGANS AND CULTURAL HERITA
Page 157 and 158: RESEARCH STUDY ON THE EFFECTS OF TH
Page 159 and 160: 4. Methodology WOOD SCIENCE FOR CON
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NON DESTRUCTIVE IMAGING FOR WOOD ID
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METHODS OF NON-DESTRUCTIVE WOOD TES
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MEASUREMENT AND SIMULATION OF DIMEN
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IN THE HEART OF THE LIMBA TREE (TER
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3. Conclusions WOOD SCIENCE FOR CON
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2. Materials and methods WOOD SCIEN
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3. Chemometrics WOOD SCIENCE FOR CO
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3. Results and discussion WOOD SCIE
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NIR SPECTROSCOPIC MONITORING OF WAT
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NUMERICAL SIMULATION OF THE STRENGT
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3. Methods and models WOOD SCIENCE
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SIMPLE ELECTRONIC SPECKLE PATTERN I
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5. Conclusions WOOD SCIENCE FOR CON
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Average r adiated presure field (dB
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EXPERIMENTAL AND NUMERICAL MECHANIC
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EFFECT OF THERMAL TREATMENT ON STRU
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The aims of this work are to: WOOD
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ultramarine [bad] titanium white [m
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4. Conclusions chrome yellow WOOD S
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Fig. 7 - A soaked lamella clamped i
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(D) CONSERVATION
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EUROPEAN TECHNICAL COMMITTEE 346 -
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THE WRECK OF VROUW MARIA - CURRENT
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ROMANIAN ARCHITECTURAL WOODEN CULTU
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RESSURREIÇÃO DE CRISTO - PANEL FR
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ON 18 TH- AND 19 TH- CENTURY SACRIS
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ON 18TH- AND 19TH- CENTURY SACRISTY
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DEFIBRING OF HISTORICAL ROOF BEAM C
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EXAMINATION AND CONSERVATION OF TWO
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EXAMINATION AND CONSERVATION OF TWO
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THE CONSEQUENCES OF WOODEN STRUCTUR
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CONSEQUENCES OF WOODEN STRUCTURES C
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WHAT ONE NEEDS TO KNOW FOR THE ASSE
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load (KN) Samples 6 5 4 3 2 1 WOOD
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STRUCTURAL BEHAVIOUR OF TRADITIONAL
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INVESTIGATION ON THE UTILIZATION OF
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3. Results and discussions WOOD SCI
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Abadlia ......................... 3
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ANNEX 1: FACTS ABOUT COST ACTION IE
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Keynote presentations WOOD SCIENCE
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