[RE-wrenches] Snow-frame damage

Wed Aug 28 19:40:35 EDT 2019

See this a lot in our area (Western slope of the Sierra). Snow/ice builds
up on the mud sill and eventually rips the frame off. We've actually been
writing a clause into our contracts for folks in high snow load areas. Some
spots exceed 400psf. It's crazy.

On Wed, Aug 28, 2019 at 4:34 PM Blake Gleason <blake at sunlightandpower.com>
wrote:

> In my photo (not the greatest - sorry!), the middle modules have unbroken
> glass.  The one on  the left has a severely bent bottom frame section, and
> the one on the right has a completely failed (torn away) bottom frame
> section.  The other modules in the photo have failed bottom frame sections
> AND glass/laminate creeping out through the (missing) bottom frame.  I
> believe the glass on those two shattered after it started creeping out of
> the frame ...
>
> On Wed, Aug 28, 2019 at 4:22 PM Ray <ray at solarray.com> wrote:
>
>> Is it possible the snow load broke the glass, then the snow shear/ ice
>> dam tore the bottom edge off?  or just the ice dam pulls the bottom edge
>> off?  Just haven't seen that type of damage here in Colorado/ New Mexico/
>> Wyoming.  I think its much drier here overall, so perhaps our snow is
>> lighter weight.  Heavy Spring Snows seem to melt off but with climate
>> changes, we might start seeing new types of damage.
>>
>> Ray Walters
>> Remote Solar
>> 303 505-8760
>>
>> On 8/28/19 4:29 PM, Blake Gleason wrote:
>>
>> Snow ripping out module frames (on the roof):
>>
>> [image: IMG_7134.jpg]
>>
>> On Mon, Aug 26, 2019 at 2:37 PM frenergy <frenergy at psln.com> wrote:
>>
>>> I've got a customer that is pushing me to lower the bottom edge of a
>>> multipole rack array to make it less visible from his house (which is .6
>>> miles away!).  Its 4 PVs in landscape, I currently have it designed with
>>> the lower edge at 3.5 feet off the ground which is actually questionable
>>> with the 2-3 feet of snow we get here sometimes. Flat ground, 25 degree
>>> pitch.
>>>
>>>             If anybody has pics (or words of wisdom) of the bottom edge
>>> of a PV frame being ripped of due to snow not being able to shed properly
>>> from *this **type of installation (or pole mount would help)*, I would
>>> appreciate the help.
>>>
>>> Bill
>>>
>>> Feather River Solar Electric
>>> Bill Battagin, Owner
>>> 4291 Nelson St.
>>> Taylorsville, CA 95983
>>> 530.284.7849
>>> CA Lic 874049www.frenergy.net
>>>
>>>
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>>
>> --
>>
>>
>> *Blake Gleason, PE* | Employee-Owner |
>>
>> *Director of Innovation & Technical Excellence *
>>
>>
>> 510.845.2997 x128
>>
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>
> --
>
>
> *Blake Gleason, PE* | Employee-Owner |
>
>
> *Director of Innovation & Technical Excellence*
>
>
> 510.845.2997 x128
>
> Follow us on Facebook
> <https://www.facebook.com/pages/Sun-Light-Power/119675658118322?ref=hl>,
> LinkedIn <https://www.linkedin.com/company/sun-light-and-power> or our
> website <https://sunlightandpower.com/>.
>
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-- 

Loren Ortiz
Technical PV Design Specialist - Commercial/Residential/Off-Grid

loren at cal-solar.com californiasolarco.com

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