Expanding Industry Insights | Solar Panels and Expanded Metal Series

Expanding Industry Insights | Solar Panels and Expanded Metal Series
03/22/18  |  Blog
Volume 1, Issue 4


Choosing the right product to protect rooftop solar panels


Solar Panel Skirting Spring has returned! Snow is melting, flowers are blooming, and the sun has returned. With more daylight, the busy season for solar installations has begun.

In our previous solar panels blog, we explained why you should add a protective skirting around the base of rooftop arrays- primarily to prevent damage from nesting animals and birds. In this blog, we will explain the advantages of using expanded metal over other options for protective skirting:


Strong and Secure
Expanded metal is manufactured from one sheet. Instead of punched to produce the openings, it is simultaneously cut and stretched with no joints or welds that can separate.

Cost Advantage
Since it is cut and stretched instead of punched to produce the openings, the typical yield of finished product from raw material is 3-1, and oftentimes greater. In addition, since no post-manufacturing processes such as welds or additives are required, costs are further reduced over other options such as woven or welded wires.

Decortive Designs
Expanded metal designs are not limited to a standard diamond-shaped pattern. Unlike other options that are limited to one design, there are many decorative patterns available to complement existing architectural elements. It can also be powder coated, painted, or be formed from different metals such as aluminum, steel, and copper.

For close to 60 years, Wallner Expac has been listening to and partnering with industry representatives to create solutions. We have the proven knowledge and skills to design and manufacture expanded metal for multiple industries and specialized applications. With five global manufacturing plants, state-of-the-art tool room and an on-site Engineering and Design Team, we provide a full range of creative and metal forming services.

For more information or to request a copy of the Solar Panels info sheet, contact Manuel Menchaca, Sr. Marketing Manager at or 909.481.8800.

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