Should you go with a rail or rail-less PV mounting system on your next installation? Depending on who you ask, you will get strong opinions for both. The real key is knowing what you need, what you prefer and the attributes of your available choices.

Reasons for Rail

For starters, it is easier to start. Rails involve a lower learning curve. You can get a crew trained on system installation fairly quick, and part of the reason for this is a more forgiving layout. If on a straight-forward roof, your layout time is reduced.

In fact, all rackless systems don’t use rails. That’s a time savings, but if the number of attachments is higher, if the parts costs are higher, the overall costs are higher — not lower, Installers should carefully account for all parts, including roof attachments.

Some of the benefits aren’t inherent in the general rail system, but have been built in to select products. PV Racking, for example, has eliminated the need for clamps on the roof, which increases the speed of installation and save 20 to 30 percent in labor time. Its elongated L-Foot allows for faster and easier rail alignment too.

Reasons for Rail-less

As you might expect, the benefits of a rail-less solution come from not having rails. I know, I really blew the cover off that one, but it’s worth understanding those benefits: Rail-less products are compact, easy to handle and cheaper to ship.

Rail-less mounting can be much quicker, but installers must know what they are doing as there can be a steeper learning curve. Rail-less is also good for mounting in landscape, but less ideal for portrait orientation.

All systems have their pluses and minuses, and depending on the job at hand or your business plan, either could be the right solution for you and your customers. So, when, where and why would you go in one direction or anothers? Art Sign as one of the best professional solar mounting structure manufacturer and designer,we will always recommend the best PV mounting solutions to you.

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