Solar panel fixing brackets

Discussion in 'Solar Power' started by stevec, Aug 17, 2015.

  1. stevec

    stevec Funster

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    I intend to install two 130W panels (bau-tech2012) measuring 1295 by 675mm. How many fixing brackets do I need? My last panel (120W) I used one on each corner and two on the long sides. These were the plastic prefabricated types. I see some panels fitted with four pieces of aluminium angle. Would this be ok on panels this size?. Just wondering how much surface area is needed to hold effectively.
     
  2. jac-in-a-box

    jac-in-a-box Funster

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    I recently fitted a pair of panels to my roof, the panels were similar in size to yours (1340 x 675)
    Used four aluminium angle brackets per panel 3"x 2"x 6" - with the 2" side being fixed to the roof with Sikaflex 221? and screws for extra security...perhaps not totally necessary but for piece of mind I felt it was worth it.
    Fitted brackets to panels with M6 stainless steel button screws and nyloc nuts, 2 bolt sets per bracket...none if it is going anywhere!
     
  3. Techno

    Techno Funster Life Member

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    Don't use screws and sikaflex! complete folly @Drexxer
     
  4. vwalan

    vwalan Funster

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    i used ally angle on mine years ago . but in recent years ask at a double glazing fitting company . you can get off cuts of nice plastic angle about 3ins wide . makes great mounts . drill and pop rivet to panels . then bond to your roof . even if they charge its only about 12 quid for a 5metre length.
     
    Last edited: Aug 17, 2015
  5. Techno

    Techno Funster Life Member

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    I use Aluminium angle and rivets. Generally the frame is more than strong enough to support the glass with no flexing. I would use 150mm long at each end and just put a short bracket in the middle say 50mm. Solid!

    These are 1200 long units
    [​IMG]
     
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  6. TheBig1

    TheBig1 Funster Life Member

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    ali angle is the cheapest and most secure. dont be frightened to put extra on as if the panels continually flex it will shorten their life span.
    I can pick up 2.4m lengths of 50x50x3mm for £12.50 locally
     
  7. Techno

    Techno Funster Life Member

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    Last edited: Aug 17, 2015
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