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Recent content by BufordTJustice

  1. BufordTJustice

    Determining Maximum Load for Flat Roof for Solar Panel Installation

    All- Another quick question (which I think is simpler)--- I do have another flat roof area which could be used for the solar panels. Initially, I didnt think I could fit the number of panels desired in the area available, but upon more detailed measurement, I can get very close to my 11.7...
  2. BufordTJustice

    Determining Maximum Load for Flat Roof for Solar Panel Installation

    dcarr--- You've done this before :-) The process as you've just described it is how I now know it will flow (in my area anyway). The building department will take all the manufacturers info for the PV equipment/mounts, etc and all I need to do is gain structural verification of the roof load...
  3. BufordTJustice

    Determining Maximum Load for Flat Roof for Solar Panel Installation

    From what I have found so far (in many places of FL at least), an expedited permitting process is being used for PV installations which, if the installation meets certain simple criteria, additional engineering is not required. Basically, it appears that if the total roof load to be added is <5...
  4. BufordTJustice

    Determining Maximum Load for Flat Roof for Solar Panel Installation

    Sail- As I look into this stuff more, Im finding that type of letter is available from all of the manufacturers of these types of mounts (and mechanical ones as well), state by state. I suppose the efforts they've placed onto these systems is not surprising (as the companies who manufacture...
  5. BufordTJustice

    Determining Maximum Load for Flat Roof for Solar Panel Installation

    Hokie66- Im not posting here too much about the fact that I am also looking at the mechanically attached approach as well. That method is rather self explanatory and the uplift/downforce info is readily available (so I haven't needed any additional help with it). As such, Im certainly not...
  6. BufordTJustice

    Determining Maximum Load for Flat Roof for Solar Panel Installation

    Ill have the same calcs coming from another supplier shortly as well......Ill be curious to see if they are similar. Im guessing theyll be more or less the same.
  7. BufordTJustice

    Determining Maximum Load for Flat Roof for Solar Panel Installation

    Well, whats cool is that Unirac provides this letter with the design (which likely helps with the EOR concern, as theyve already provided the EOR of sorts). Of course, one still has to look at the structure onto which these mounts are placed.
  8. BufordTJustice

    Determining Maximum Load for Flat Roof for Solar Panel Installation

    Here are the assumptions for the design. Does anyone see anything here that may not fly with the building department? RM10 U-BUILDER PRODUCT ASSUMPTIONS RM10 – Ballasted Flat Roof Systems Building and System Occupancy/Risk Category II Building Height ≤ 60 ft. Roof Slope ≥ 2.4°...
  9. BufordTJustice

    Determining Maximum Load for Flat Roof for Solar Panel Installation

    All- Im working with a local truss engineer to sturdy up my trusses a bit. But, it looks like the average load for the ballasted solar mount arrangement is only going to come in at ~6 psf including the panels. What do you guys think of this? Ill of course be digging into this more...
  10. BufordTJustice

    Determining Maximum Load for Flat Roof for Solar Panel Installation

    kamrt- Thanks for the info.....I think the firms name might be "AG". Ill drop them a line.
  11. BufordTJustice

    Determining Maximum Load for Flat Roof for Solar Panel Installation

    Thanks for the reply kmart30. As this construction appears to be not something I can look up online in a table, do you have any firms around Tampa Bay that youd know of who could provide an analysis of this roof support to confirm it can hold the designed ballast weight?
  12. BufordTJustice

    Determining Maximum Load for Flat Roof for Solar Panel Installation

    I think the wind tunnel testing is correct. The brochure on the product makes note of this (but doesnt mention specific ballast amounts).
  13. BufordTJustice

    Determining Maximum Load for Flat Roof for Solar Panel Installation

    Yeah...I shouldn't have joked around about the cat 5 thing. That was inappropriate in a tech discussion. My intent was, in a tongue and cheek fashion, to implicitly recognize that in a cat 5 storm, my house would not be likely to be standing, so the mounting means for the panels would be not...
  14. BufordTJustice

    Determining Maximum Load for Flat Roof for Solar Panel Installation

    Lomaraandil- I verified the ~32 lb/block for the ballasts. I too thought this seemed too low, but they are only 4x8x16.

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