[RE-wrenches] Mounting on rock

[RE Ellison]

On a roof ground mount you just need four holes the front one should be relatively level if you have to shim them with concrete or something or even steel plates that would work

The rears are adjustable legs so it’s no issue

Look at DPW roof ground mount you’ll see what I mean

Bob


> On Apr 12, 2018, at 9:53 AM, Aaron Mandelkorn <reosolar at gmail.com> wrote:
> 
> Thanks all.  The flange plate was what I was thinking.  It may be to difficult to level a ballast mounting roof system.  Engineering may be a little difficult I assume?
> 
> Aaron Mandelkorn
> President / Founder
> Renewable Energy Outfitters
> www.reosolar.com
> Off Grid Depot
> www.offgridnow.com
> 970-596-3744
> 
>    
> 
>> On Thu, Apr 12, 2018, 7:46 AM Mac Lewis <maclewis1 at gmail.com> wrote:
>> Hi Aaron,
>> 
>> Granite is a great substrate to mount to (once it's done). You could weld a large flange plate onto the bottom of your pole, and bolt it to the granite using anchor bolts. Rock climbers (including myself) drill into granite all of the time.  Bosch, among others, has a great drill and bit setup that works well. Glue in epoxies are a great way to keep moisture out of the hole for many years.
>> 
>> Ballast racks are available too but it seems like a shame not to attach to the granite in some way.
>> 
>> Good luck
>> 
>>> On Thu, Apr 12, 2018, 7:28 AM Aaron Mandelkorn <reosolar at gmail.com> wrote:
>>> Hi all,
>>> 
>>> I have a customer that requires a mounting option I have yet to encounter.  His site sits on top of of a massive hill of granite.  It is relatively flat.  Are there any mounting options that could work here?  We are only talking about (12) to (16) modules for an off grid array.  Is there anything that can bolt to rock?  I typically use dpw or Mt solar pole mounts but can't imagine how these options could work.  Any thoughts? 
>>> 
>>> Aaron Mandelkorn
>>> President / Founder
>>> Renewable Energy Outfitters
>>> www.reosolar.com
>>> Off Grid Depot
>>> www.offgridnow.com
>>> 970-596-3744
>>> 
>>>    
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