Materiales de Construcción, Vol 68, No 329 (2018)

Defect characterization, diagnosis and repair of wood flooring based on a field survey

A. Delgado
Instituto Superior Técnico (IST) - Universidade de Lisboa, Portugal

C. Pereira
CERIS-ICIST, Dept. of Civil Engineering, Architecture and Georresources, Instituto Superior Técnico (IST) - Universidade de Lisboa, Portugal

J. de Brito
CERIS-ICIST, Dept. of Civil Engineering, Architecture and Georresources, Instituto Superior Técnico (IST) - Universidade de Lisboa, Portugal

J. D. Silvestre
CERIS-ICIST, Dept. of Civil Engineering, Architecture and Georresources, Instituto Superior Técnico (IST) - Universidade de Lisboa, Portugal


A statistical characterization of defects in 35 buildings and 98 wood floorings (softwood and hardwood floors, and laminated and engineered wood floors), their diagnostic methods and repair solutions is presented. An expert system for inspecting wood flooring, comprising the classification of defects, their most probable causes, diagnostic methods and repair techniques, was used. Results include age, affected area, severity and frequency of defects and their main causes, as well as appropriate diagnostic methods, preventive and curative repair solutions most prescribed and the most significant correlations. Scratches were detected in more than five sixths of the sample, highly associated with exterior mechanical actions, and with an inadequate finishing layer. Wearing of the finishing layer was detected in a quarter of the inspected floorings. Accordingly, the application of a suitable finishing layer and, alternatively, its replacement are the most prescribed repair techniques.


Wood; Weathering; Decay; Durability; Characterization

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Delgado, A.; de Brito, J.; Silvestre J.D. (2013) Inspection and diagnosis system for wood flooring. J. Perform. Constr. Fac. 27 [5], 564–574.

Ferraz, G.T.; de Brito, J.; Freitas, V.P. de; Silvestre, J.D. (2015) Integrated technical management systems: inspection and repair of non-structural elements. ALCONPAT Journal 5 [2], 129–140.

Gaião, C.; de Brito, J.; Silvestre, J.D. (2011) Inspection and diagnosis of gypsum plasterboard walls. J. Perform. Constr. Fac. 25 [3], 172–180.

Pereira, A.; Palha, F.; de Brito, J.; Silvestre, J.D. (2011) Inspection and diagnosis system for gypsum plasters in partition walls and ceilings. Constr. Build. Mater. 25 [4], 2146–2156.

Sá, G.; Sá, J.; de Brito, J.; Amaro, B. (2014) Inspection and diagnosis system for rendered walls. Int. J. Civil Eng. 12 [2], 279–290.

Silvestre, J.D.; de Brito, J. (2009) Ceramic tiling inspection system. Constr. Build. Mater. 23 [2], 653–668.

Neto, N.; de Brito, J. (2011) Inspection and defect diagnosis system for natural stone cladding (NSC). J. Mater. Civil Eng. 23 [10], 1433–1443.

Amaro, B.; Saraiva, D.; de Brito, J.; Flores-Colen, I. (2013) Inspection and diagnosis system of ETICS on walls. Constr. Build. Mater. 47, 1257–1267.

Walter, A.; de Brito, J.; Grandão Lopes, J. (2005) Current flat roof bituminous membranes waterproofing systems - inspection, diagnosis and pathology classification. Constr. Build. Mater. 19 [3], 233–242.

Garcez, N.; Lopes, N.; de Brito, J.; Silvestre, J.D. (2012) System of inspection, diagnosis and repair of external claddings of pitched roofs. Constr. Build. Mater. 35, 1034–1044.

Garcia, J.; de Brito, J. (2008) Inspection and diagnosis of epoxy resin industrial floor coatings. J. Mater. Civil Eng. 20 [2], 128–136.

Silva, C. da; Coelho, F.; de Brito, J.; Silvestre, J.; Pereira, C. (2017) Inspection, diagnosis and repair system for architectural concrete surfaces. J. Perform. Constr. Fac. 31 [5], 04017035.

Santos, A.; Vicente, M.; de Brito, J; Flores-Colen, I.; Castelo, A. (2016) Inspection, diagnosis, and rehabilitation system of door and window frames. J. Perform. Constr. Fac. 31 [3], 04016118.

Gaião, C.; de Brito, J.; Silvestre, J.D. (2012) Gypsum plasterboard walls: inspection, pathological characterization and statistical survey using an expert system. Mater. Construcc. 62 [306], 285–297.

Van den Bulcke, J.; de Windt, I.; Defoirdt, N.; de Smet, J.; Van Acker, J. (2011) Moisture dynamics and fungal susceptibility of plywood. Int. Biodeter. Biodegr. 65 [5], 708–716.

COAM (Colegio Oficial de Arquitectos de Madrid) (1991) Pathology, conservation and rehabilitation of buildings (in Spanish), Volumes 1, 3 and 4, Colegio Oficial de Arquitectos de Madrid, Spain.

Esteban, L.; Casasús, A.; Oramas, C.; de Palacios, P. (2002) Wood and its technology (in Spanish), Ediciones Mundi-Prensa, Fundación Conde del Valle de Salazar AiTiM, Madrid, Spain.

Hiziroglu, S. (2004) Dimensional changes in wood. NREM-5009, Oklahoma State University, Division of Agricultural Sciences and Natural Resources, USA.

Keskin, H.; Tekin, A. (2011) Abrasion resistances of cellulosic, synthetic, polyurethane, waterborne and acid hardening varnishes used woods. Construc. Build. Mater. 25 [2], 638–643.

Kim, S., Kim, H.-J. (2006) Anti-bacterial performance of colloidal silver-treated laminate wood flooring. Int. Biodeter. Biodegr. 57 [3], 155–162.

Makepeace J. (1993) The encyclopaedia of wood, Facts on file, New York, USA.

Merino, F. (1998) Pathology and intervention techniques, Volume 3 - Structural elements. Cap. III - Recovery of wood structures. Pathology of wood (in Spanish). Departamento de Construcción y Tecnología Arquitectónicas, Universidad Politécnica de Madrid, Editorial Munilla-Lería, Madrid, Spain, 255–276.

Baar, J.; Debnáriková, V.; Rademacher, P. (2015) Influence of surface damage on moisture behavior and decay susceptibility of film faced plywood. Pro Ligno 11[4], 253–259.

Neto, N.; de Brito, J. (2012) Validation of an inspection and diagnosis system for anomalies in natural stone cladding (NSC). Constr. Build. Mater. 30, 224–236.

Chong, W.-K.; Low, S.-P. (2005) Assessment of defects at construction and occupancy stages, J. Perform. Constr. Fac. 19 [4], 283–289.

Ransom, W.H. (1987) Building failures: diagnosis and avoidance. Spon Press, Second edition, UK.

Minne, E.; Crittenden, J.C. (2015) Impact of maintenance on life cycle impact and cost assessment for residential flooring options. Int. J. Life Cycle Ass. 20, 36–45.

Ishak, S.N.H.; Chohan, A.H.; Ramly, A. (2007) Implications of design deficiency on building maintenance at post-occupational stage. J. Build. Apprais. 3 [2], 115–124.

Nejad, M.; Shafaghi, R.; Ali, H.; Cooper, P. (2013) Coating performance on oil-heat treated wood for flooring. Bioresources 8 [2], 1881–1892.

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