Soiling of building envelope surfaces and its effect on solar reflectance - Part III: Inter laboratory study of an accelerated aging method for roofing materials. - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Solar Energy Materials and Solar Cells Année : 2015

Soiling of building envelope surfaces and its effect on solar reflectance - Part III: Inter laboratory study of an accelerated aging method for roofing materials.

Sharon Chen
  • Fonction : Auteur
Haley E. Gilbert
  • Fonction : Auteur
Thomas W. Kirchstetter
  • Fonction : Auteur
Paul Berdahl
  • Fonction : Auteur
Erica Bibian
  • Fonction : Auteur
Laura S. Bruckman
  • Fonction : Auteur
Dominic Cremona
  • Fonction : Auteur
Roger H. French
  • Fonction : Auteur
Devin A. Gordon
  • Fonction : Auteur
Marco Emiliani
  • Fonction : Auteur
Justin Kable
  • Fonction : Auteur
Liyan Ma
  • Fonction : Auteur
Milena Martarelli
  • Fonction : Auteur
Riccardo Paolini
  • Fonction : Auteur
Matthew Prestia
  • Fonction : Auteur
John Renowden
  • Fonction : Auteur
Gian Marco Revel
  • Fonction : Auteur
Olivier Rosseler
  • Fonction : Auteur
Ming Shiao
  • Fonction : Auteur
Giancarlo Terraneo
Tammy Yang
  • Fonction : Auteur
Lingtao Yu
  • Fonction : Auteur
Michele Zinzi
  • Fonction : Auteur
Hashem Akbari
  • Fonction : Auteur
Ronnen Levinson
  • Fonction : Auteur
Hugo Destaillats
  • Fonction : Auteur

Résumé

A laboratory method to simulate natural exposure of roofing materials has been reported in a companion article. In the current article, we describe the results of an international, nine-participant interlaboratory study (ILS) conducted in accordance with ASTM Standard E691-09 to establish the precision and reproducibility of this protocol. The accelerated soiling and weathering method was applied four times by each laboratory to replicate coupons of 12 products representing a wide variety of roofing categories (single-ply membrane, factory-applied coating (on metal), bare metal, field-applied coating, asphalt shingle, modified-bitumen cap sheet, clay tile, and concrete tile). Participants reported initial and laboratory-aged values of solar reflectance and thermal emittance. Measured solar reflectances were consistent within and across eight of the nine participating laboratories. Measured thermal emittances reported by six participants exhibited comparable consistency. For solar reflectance, the accelerated aging method is both repeatable and reproducible within an acceptable range of standard deviations: the repeatability standard deviation sr ranged from 0.008 to 0.015 (relative standard deviation of 1.2–2.1%) and the reproducibility standard deviation sR ranged from 0.022 to 0.036 (relative standard deviation of 3.2–5.8%). The ILS confirmed that the accelerated aging method can be reproduced by multiple independent laboratories with acceptable precision. This study supports the adoption of the accelerated aging practice to speed the evaluation and performance rating of new cool roofing materials.

Dates et versions

hal-01264594 , version 1 (29-01-2016)

Identifiants

Citer

Mohamad Sleiman, Sharon Chen, Haley E. Gilbert, Thomas W. Kirchstetter, Paul Berdahl, et al.. Soiling of building envelope surfaces and its effect on solar reflectance - Part III: Inter laboratory study of an accelerated aging method for roofing materials.. Solar Energy Materials and Solar Cells, 2015, 143, pp.581-590. ⟨10.1016/j.solmat.2015.07.031⟩. ⟨hal-01264594⟩
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