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Sealant Aging and its Correlation with Facade Reflectance

Abstract

A highly reflective facade may enhance the durability of sealant joints. This study investigates that reflective facades reduce thermal movement loading to sealant joints due to less fluctuations of surface temperature, and therefore lower fatigue damage of sealant joints. Cumulative fatigue damage was calculated to less than 1.6% in the first year. This damage considering only the first year is not that large, however, serious fatigue damage would ensue from the accumulated deterioration of sealants during a longer period, e.g. 10–25 years. It is therefore recommended that the facade solar reflectance should be made as high as possible.

Category

Academic article

Language

English

Author(s)

  • Takeshi Ihara
  • Arild Gustavsen
  • Bjørn Petter Jelle

Affiliation

  • SINTEF Community / Architecture, Materials and Structures
  • Norwegian University of Science and Technology
  • Japan

Year

2014

Published in

Construction and Building Materials

ISSN

0950-0618

Volume

69

Issue

Oct

Page(s)

390 - 402

View this publication at Norwegian Research Information Repository