do you have to lead flash | on ElectriciansForums

Discuss do you have to lead flash in the Solar PV Forum | Solar Panels Forum area at ElectriciansForums.net

Joined
Mar 11, 2010
Messages
689
Reaction score
77
Location
Midlands
HI all,

doing first install,

we are just fitting the hangers today, my question is do you have to lead flash the roofer im working with says there is no need. i took some photos

[ElectriciansForums.net] do you have to lead flash[ElectriciansForums.net] do you have to lead flash[ElectriciansForums.net] do you have to lead flash

what you think

Cheers Grand
 
I do on Rosemary as a matter of course, some of the older clay tiles crack the moment you stare at them! You can bet a hairy one that once the rail is on and your lifting the panels up the little tile underneath the hook will crack and all you will hear is that anoying noise as the broken bit slips down the roof and you shout out loud F*&%^%%^ Hell!!
 
so whats the best thing to do, flash the tile thats under the bracket. i dont mind because i can see it will only take 5 mins, also roofer asked what gaugue i wanted as there was alot in the price, can you get the thinest??

cheers for reply
Grand
 
code 3 - Price per Kg, depends on supplier, i used 150mm wide. I flashed under and over on mine, but had different hooks to you.
 
Yup, code 3. Get loads of the stuff on rosemary installs. I would lead under and over also. The tiles need very little persuasion to fall to bits and judging by your installs there will be a fair bit of pressure on the tile just where you don't want it as soon as the winds gets up.

Neat looking install though.
 
@BiggsSolar advice is spot on.

This is what I've been waiting for - it's even Eurocode 5 compliant (Happy Bunny !!) :hurray: The only solar roof anchors designed for UK roofs
 
Yeah, we saw those at Power Of Three. Look good but I still don't like the idea of them on rosemary tiled roofs. I like to have a bit of movement on the bracket before the downforce touches the tile below. Maybe a bit overcautious but I worry about the long term pressure on the tile. I prefer a higher bracket which I can lead over and that allows this kind of tolerance.
 
I had a good look at these too and asked the same questions, they are designed so that (on tiles) they don't need flashing, from what I recall the slate ones still will.

From what I recall, because they are designed to need no cutting, the hook length was designed so that it went to at least the batten below, so that there shouldn't be any stress on a tile/slate between the battens.

With rosemary / plain tiles, one of the variables may be how much camber / curve the tile has along its length.

As soon as I get the opportunity we're going to test them out (after all my rants what else can I do!!).

I've asked for a set of installation instructions, so I'll let you know what comes back.
 
From the dti draft
For above roof PV systems the array fixing brackets should not affect the weather tightness of the roof they are fitted to. For example, systems attached to tile roofs should be designed and installed such that the fixing brackets do not displace the tiles and cause gaps more than naturally occurs between the tiles. Fixing methods must not subject roof coverings to imposed loads which may degrade their primary purpose of maintaining weather-tightness.

[This is what I've been waiting for - it's even Eurocode 5 compliant (Happy Bunny !!) :hurray: The only solar roof anchors designed for UK roofs/QUOTE]

Having followed the link to your site and seen the video I cant see how the brackets will comply with the above quotes. Please explain how they will. (a pm will do if you don't want to on the open forum)
 
The full installtion instructions (MCS012 requirement) are being prepared at the moment, complete with how to install in complience with the Eurocdes and LABC guidelines.
 

Reply to do you have to lead flash in the Solar PV Forum | Solar Panels Forum area at ElectriciansForums.net

News and Offers from Sponsors

  • Article
Join us at electronica 2024 in Munich! Since 1964, electronica has been the premier event for technology enthusiasts and industry professionals...
    • Like
Replies
0
Views
275
  • Sticky
  • Article
Good to know thanks, one can never have enough places to source parts from!
Replies
4
Views
773
  • Article
OFFICIAL SPONSORS These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then...
Replies
0
Views
779

Similar threads

Have you tried them without the PIR in the circuit? Could be a dodgy relay in the PIR. LEDs are not technically always on but pulse really fast so...
Replies
1
Views
355
It's a room where someone sleeps, so it's a bedroom. Minimum standards were set in the Parker Morris report in around 1963. Anything built after...
Replies
5
Views
1K

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

YOUR Unread Posts

This website was designed, optimised and is hosted by untold.media Operating under the name Untold Media since 2001.
Back
Top