© 2012/EN Zep Solar, Inc. reserves the right to make specifications changes without any prior notice. All rights reserved.
www.zepsolar.com
Document #800-0351-001 Rev B
Page 13
ZS COMP INSTALLATION MANUAL FOR COMPOSITION SHINGLE ROOFS - U.S.
3.2 Using the Span Tables
In addition to the Zepulator online design tool, Zep Solar, Inc. provides complete Span Tables that
are included with the Engineering Certification Letters for each country. These tables represent
tested structural values for every combination of hardware that is approved for use with Zep Com-
patible roof mounted PV arrays. The Engineering Certification Letter may also be provided to build-
ing officials when submitting for a permit, or for use by independent engineering consultants.
Figure 3.4 Span Table Example (ZS Comp - U.S.)
Wind speed
Roof pitch
Specific option for
roof attachment
hardware
Roof zone
Snow load
Maximum allowable span
Terrain exposure
category
