Roofing products, photovoltaic roofing elements and systems using them
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 3, 2015
Grant Date -
Jan 26, 2012
app pub date -
Jun 17, 2011
filing date -
Jun 25, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
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.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully