The Experts below are selected from a list of 63 Experts worldwide ranked by ideXlab platform

J De Brito - One of the best experts on this subject based on the ideXlab platform.

  • application of the factor method to the prediction of the service life of ceramic external wall Cladding
    Journal of Performance of Constructed Facilities, 2015
    Co-Authors: M M Galbusera, J De Brito, A. Silva
    Abstract:

    AbstractThe main goal of this study is to use the factor method to evaluate the service life of ceramic external Cladding. An interesting possibility is that a tool may be developed to aid the planning of maintenance operations, to reduce costs, and to ensure a better performance of the Cladding System. The method relies on field work data on the state of repair of the facades, based on a survey of 195 facades in the Lisbon area. The factors affecting durability are singled out and quantified through several scenarios with the aim of optimizing the weighting coefficients. The degradation model has provided consistent results for most of the variables influencing the Cladding’s loss of performance. Adequate knowledge on the durability of a component allows correctly designing the details and planning the maintenance operations that the component requires. These in turn are part of a broader perspective that involves reductions in costs and environmental impact, exactly the challenges that service life pred...

  • service life prediction models for exterior stone Cladding
    Building Research and Information, 2011
    Co-Authors: A. Silva, J L Dias, P L Gaspar, J De Brito
    Abstract:

    The use of service life prediction tools can allow a more rational management of the maintenance of a building and its components by supporting reduced life cycle costs of constructed assets. A study was conducted to evaluate the degradation of facades of buildings located in Lisbon, Portugal, and in which visual in-situ inspections of 140 stone Cladding facades were completed. Based on this information, different models were proposed to describe the degradation of masonry stone-clad buildings and a novel approach to predicting service life was developed. A description is provided for the use of artificial neural networks to predict the service life of stone Cladding of the type that is directly adhered to a building substrate. With the use of artificial neural networks an analytical expression was established to estimate the degradation of this type of Cladding System. The viability of this method was then compared with other methods used for service life prediction including multiple linear regression a...

A. Silva - One of the best experts on this subject based on the ideXlab platform.

  • application of the factor method to the prediction of the service life of ceramic external wall Cladding
    Journal of Performance of Constructed Facilities, 2015
    Co-Authors: M M Galbusera, J De Brito, A. Silva
    Abstract:

    AbstractThe main goal of this study is to use the factor method to evaluate the service life of ceramic external Cladding. An interesting possibility is that a tool may be developed to aid the planning of maintenance operations, to reduce costs, and to ensure a better performance of the Cladding System. The method relies on field work data on the state of repair of the facades, based on a survey of 195 facades in the Lisbon area. The factors affecting durability are singled out and quantified through several scenarios with the aim of optimizing the weighting coefficients. The degradation model has provided consistent results for most of the variables influencing the Cladding’s loss of performance. Adequate knowledge on the durability of a component allows correctly designing the details and planning the maintenance operations that the component requires. These in turn are part of a broader perspective that involves reductions in costs and environmental impact, exactly the challenges that service life pred...

  • service life prediction models for exterior stone Cladding
    Building Research and Information, 2011
    Co-Authors: A. Silva, J L Dias, P L Gaspar, J De Brito
    Abstract:

    The use of service life prediction tools can allow a more rational management of the maintenance of a building and its components by supporting reduced life cycle costs of constructed assets. A study was conducted to evaluate the degradation of facades of buildings located in Lisbon, Portugal, and in which visual in-situ inspections of 140 stone Cladding facades were completed. Based on this information, different models were proposed to describe the degradation of masonry stone-clad buildings and a novel approach to predicting service life was developed. A description is provided for the use of artificial neural networks to predict the service life of stone Cladding of the type that is directly adhered to a building substrate. With the use of artificial neural networks an analytical expression was established to estimate the degradation of this type of Cladding System. The viability of this method was then compared with other methods used for service life prediction including multiple linear regression a...

L M Chu - One of the best experts on this subject based on the ideXlab platform.

  • thermal performance of a vegetated Cladding System on facade walls
    Building and Environment, 2010
    Co-Authors: C Y Cheng, Ke K S Cheung, L M Chu
    Abstract:

    An experimental approach is used to assess the effect of vegetation on the thermal performance of a vertical greening System, which comprised of turf-based vertical planting modules, on an elevated facade wall of a public housing apartment. Despite temperature fluctuations in the various compartments external and internal to a concrete wall, the vegetated Cladding reduced interior temperatures and delayed the transfer of solar heat, which consequently reduced power consumption in air-conditioning compared with a building envelope with bare concrete. Vegetation cover led to a different pattern of temperature fluctuations on wall surfaces, which may affect the comfort of occupants even after sunset. The cooling effect which was closely associated with the area covered by living plants and moisture in the growth medium, demonstrated the value of maintaining a healthy vegetation cover beyond visual amenity. Marked variation in moisture distribution along the vertical profile of the growth medium highlighted a concern rarely addressed in planting on ground. Substrate moisture measured at randomly selected locations would underestimate the water stress in some plants and impair their survival.

Douglas Taylo - One of the best experts on this subject based on the ideXlab platform.

C Y Cheng - One of the best experts on this subject based on the ideXlab platform.

  • thermal performance of a vegetated Cladding System on facade walls
    Building and Environment, 2010
    Co-Authors: C Y Cheng, Ke K S Cheung, L M Chu
    Abstract:

    An experimental approach is used to assess the effect of vegetation on the thermal performance of a vertical greening System, which comprised of turf-based vertical planting modules, on an elevated facade wall of a public housing apartment. Despite temperature fluctuations in the various compartments external and internal to a concrete wall, the vegetated Cladding reduced interior temperatures and delayed the transfer of solar heat, which consequently reduced power consumption in air-conditioning compared with a building envelope with bare concrete. Vegetation cover led to a different pattern of temperature fluctuations on wall surfaces, which may affect the comfort of occupants even after sunset. The cooling effect which was closely associated with the area covered by living plants and moisture in the growth medium, demonstrated the value of maintaining a healthy vegetation cover beyond visual amenity. Marked variation in moisture distribution along the vertical profile of the growth medium highlighted a concern rarely addressed in planting on ground. Substrate moisture measured at randomly selected locations would underestimate the water stress in some plants and impair their survival.