3 ms·
Minor nitpick, but if you use flush semi-flexible panels vs rigid ones their efficiency is 10-17% vs 16-23%. Flush ones are way easier to install, basically gl
by dzhiurgis 4y ago
Minor nitpick, but if you use flush semi-flexible panels vs rigid ones their efficiency is 10-17% vs 16-23%.
Flush ones are way easier to install, basically glued on, while rigid ones need some sort of support system.
- elcritch 4y agoOne big downside of semi-flexible panels are how susceptible they are to damage from hail. One big storm can kill 40-50% of their efficiency. Here’s some test results: https://www.energy.gov/sites/prod/files/2014/01/f7/pvmrw13_ps2_westpak_brown.pdf https://www.energy.gov/sites/prod/files/2014/01/f7/pvmrw13_p...
- rootusrootus 4y agoThe flush ones don't last nearly as long, either. AFAIK most manufacturers, and most aftermarket installs as well are using rigid panels mounted with z-brackets. More effort to install, but gluing flexible panels to a membrane roof wasn't what I wanted to do either.