Is Ballast Mounted Solar Right For Your Flat Roof?

Solar panels on the roof of a building.

When choosing solar, there are so many options. Types and brands of solar panels, different wattages of solar panels, string inverters vs. micro-inverters, warranties, racking systems, etc. . . . . . . . . It’s enough to make your head spin!

Among these many, often overwhelming options is racking. Whjat racking system is best for your home or business? Here in New Mexico, many homes are constructed with flat roofs. They help make New Mexico, well, look like New Mexico! But flat roofs have many problems, as you may already know if you have one. The major problem is leaking, because like many of the flat roofs, they were not originally constructed and/or roofed properly, or they have not been maintained properly.

If you have a flat roof and are have considered solar, you may be hesitant to install solar because you are afraid it will create further roofing issues. Many folks believe that you have to penetrate the roof with traditional solar standoffs in order to install solar on flat roofs. In some cases this is still the best option if loading and weight is of concern. However, solar ballast mounts have come a long way, and provide a penetration free solution to your home.

Solar ballast mounting systems typically consist of metal ballast block trays, weighed down with ballast block, which holds the solar panels in place using weight. Since they are weighed down rather than screwed or fastened down to the roof surface, no new penetrations (read: future leak points) need to occur for the solar installation. And if installed by a qualified installer with proper preparation, a ballast mount solar install will not typically interfere with exiting roof warranties you may have.

So if your flat roof has kept you from looking into solar, rest assured there are options for you. Installing solar on your flat roof is now possible without the worry of creating leaks or other issues on your troublesome flat roof.