Lightweight, self-ballasting photovoltaic roofing assembly
- Berkeley, CA
A photovoltaic roofing assembly comprises a roofing membrane (102), a plurality of photovoltaic modules (104, 106, 108) disposed as a layer on top of the roofing membrane (102), and a plurality of pre-formed spacers, pedestals or supports (112, 114, 116, 118, 120, 122) which are respectively disposed below the plurality of photovoltaic modules (104, 106, 108) and integral therewith, or fixed thereto. Spacers (112, 114, 116, 118, 120, 122) are disposed on top of roofing membrane (102). Membrane (102) is supported on conventional roof framing, and attached thereto by conventional methods. In an alternative embodiment, the roofing assembly may have insulation block (322) below the spacers (314, 314', 315, 315'). The geometry of the preformed spacers (112, 114, 116, 118, 120, 122, 314, 314', 315, 315') is such that wind tunnel testing has shown its maximum effectiveness in reducing net forces of wind uplift on the overall assembly. Such construction results in a simple, lightweight, self-ballasting, readily assembled roofing assembly which resists the forces of wind uplift using no roofing penetrations.
- Research Organization:
- Powerlight Corporation
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FG01-95EE15638
- Assignee:
- PowerLight Corporation (Berkeley, CA)
- Patent Number(s):
- US 5746839
- OSTI ID:
- 871520
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
self-ballasting
photovoltaic
roofing
assembly
comprises
membrane
102
plurality
modules
104
106
108
disposed
layer
top
pre-formed
spacers
pedestals
supports
112
114
116
118
120
122
respectively
below
integral
therewith
fixed
thereto
supported
conventional
roof
framing
attached
methods
alternative
embodiment
insulation
block
322
314
315
geometry
preformed
wind
tunnel
testing
shown
maximum
effectiveness
reducing
net
forces
uplift
overall
construction
results
simple
readily
assembled
resists
penetrations
attached thereto
photovoltaic modules
assembly comprises
photovoltaic module
conventional methods
alternative embodiment
roofing membrane
roofing assembly
integral therewith
disposed below
fixed thereto
photovoltaic roofing
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