Paul Berdahl

Energy Analysis
Lawrence Berkeley National Laboratory
1 Cyclotron Road
MS 70R0108B
Berkeley, CA, 94720, USA
+1-510-486-5278 (Phone)
+1-510-486-7303 (Fax)
PHBerdahl@LBL.gov
Lawrence Berkeley National Laboratory
1 Cyclotron Road
MS 70R0108B
Berkeley, CA, 94720, USA
+1-510-486-5278 (Phone)
+1-510-486-7303 (Fax)
PHBerdahl@LBL.gov
Paul Berdahl is a Staff Scientist, Materials Specialist, and expert on roofing technology.
Publications
"Soiling of building envelope surfaces and its effect on solar reflectance—Part I: Analysis of roofing product databases." Solar Energy Materials and Solar Cells. 2011;95:3385-3399.
"Measuring solar reflectance—Part I: Defining a metric that accurately predicts solar heat gain." Solar Energy. 2010;84:1717-1744.
"Measuring solar reflectance—Part II: Review of practical methods." Solar Energy. 2010;84:1745-1759.
"A novel technique for the production of cool colored concrete tile and asphalt shingle roofing products." Solar Energy Materials and Solar Cells. 2010;94:946-954.
Evaluation of titanium dioxide as a photocatalyst for removing air pollutants. Vol. CEC-500-2007-112.; 2008. California Energy Commission, PIER Energy-Related Environmental Research Program CEC-500-2007-112.
"Surface roughness effects on the solar reflectance of cool asphalt shingles." Solar Energy Materials and Solar Cells. 2008;92:482-489.
"Weathering of roofing materials - an overview." Construction and Building Materials. 2008;22:423-433.
"Methods of creating solar-reflective nonwhite surfaces and their application to residential roofing materials." Solar Energy Materials and Solar Cells. 2007;91:304-314.
Cool color roofing materials.; 2006.
Potentials of urban heat island mitigation. Vol. 1.; 2005.
"Effects of soiling and cleaning on the reflectance and solar heat gain of a light-colored roofing membrane." Atmospheric Environment. 2005;39:7807-7824.
"Solar spectral optical properties of pigments--Part I: model for deriving scattering and absorption coefficients from transmittance and reflectance measurements." Solar Energy Materials and Solar Cells. 2005;89:319-349.
"Solar spectral optical properties of pigments--Part II: survey of common colorants." Solar Energy Materials and Solar Cells. 2005;89:351-389.
Cool colored roofs to save energy and improve air quality. Vol. 1.; 2004.
"Spectral emissivity of anodized aluminum and the thermal transmittance of aluminum window frames." Nordic Journal of Building Physics. 2003;3:1-12.
"Aging of reflective roofs: soot deposition." Applied Optics. 2002;41:2355-2360.
"Reflective surfaces for cooler buildings and cities." Philosophical Magazine Part B. 1999;79:1457-1476.
"Preliminary survey of the solar reflectance of cool roofing materials." Energy and Buildings. 1997;25:149-158.
"Building energy efficiency and fire safety aspects of reflective coatings." Energy and Buildings. 1995;22:187-191.
