The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 03, 2015
Filed:
Jun. 17, 2011
Robert L. Jenkins, Honey Brook, PA (US);
Husnu M. Kalkanoglu, Swarthmore, PA (US);
Gregory F. Jacobs, Oreland, PA (US);
Wayne E. Shaw, Glenn Mills, PA (US);
Peter Chihlas, Lansdale, PA (US);
Robert L. Jenkins, Honey Brook, PA (US);
Husnu M. Kalkanoglu, Swarthmore, PA (US);
Gregory F. Jacobs, Oreland, PA (US);
Wayne E. Shaw, Glenn Mills, PA (US);
Peter Chihlas, Lansdale, PA (US);
CertainTeed Corporation, Valley Forge, PA (US);
Abstract
The present invention relates more particularly to roofing products for use with photovoltaic elements, and to photovoltaic systems that include one or more photovoltaic elements joined to a roofing substrate. In one aspect, the invention provides a roofing product including: a bituminous roofing substrate having a top surface; and roofing granules embedded in the top surface of the roofing substrate, wherein in at least one over-pressed zone of the roofing product, the roofing granules are embedded so that (a) the over-pressed zone exhibits a 0.20 gram loss or less in a rub test as described in ASTM D-4977; or (b) in the over-pressed zone the average granule embed volume fraction is at least 0.5; or (c) in the over-pressed zone, the average distance between the top of the roofing granules and the top surface of the bituminous roofing substrate is 1.0 mm or less.