Important rooftop maintenance


Important RoofTop maintenance

> > we can inspect modules for signs of degradation
       (color changes, fogged glazing, de-lamination,
       warping, or water leaks), cracked glazing, and/or
       bent frames)

> > we can check all roof-top connections

> > we can tighten all roof-top mounting hardware
      (it can loosen up, thanks to the wind always
      tugging back & forth, trying to lift those many
      long flat panels; wind force on the roof is far
      different than that at ground level)

> > we can inspect exposed wiring for rodent & other
      damage (see left photo below)


> > we can check for rust, galvanic corrosion, and
      electrolysis (see right photo above)

> > we can secure any wiring loose under the modules

> > we can clip any new interfering vegetation growth

> > we can inspect that the cable-ties are UV-resistant
      and are weather-resistant.

> > we can verify that cables are not exceeding
       acceptable bend-radius and that they have any
       needed drip-loop prior to entry points.

> > we can inspect module-to-module ground connections

> > we can apply restorations or sealants

> > we can verify proper required air-flow clearance
       between the modules and the roof

> > we can verify that there are sufficient support legs    
      ('standoffs') under the panels and their racking
      --the correct number for some areas is not enough
      for windier areas; panels may exceed their
      flex-limit without sufficient stiffening (support legs)

> > we can inspect the sealants applied around all     
      rooftop penetrations

> > we can clean away cooling-inhibiting dust and dirt
       from the electrical combiner box and from the
       DC-to-AC inverter(s)


Roof Danger Factor:

Height, power lines, heat, glass sheets--

not a place to send a maid,
a window-washer,
a student, or a handyman!





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