measuring roofs

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poheZ

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Hi

I wondered what tips people have for measuring roof areas for pv?

I have been estimating, which has worked well on 2 installs but on 2 other ones i had to take 2 panels off the quote!

 
3 4 5 rule

or, you can stand on the ground and measure the distance from centre to edge, count the bricks up and measure the length for a more accurate area. no good if its dashed though.

I find 3/4/5 is close as most of the roofs in this country are about 30degrees ish. then just measure the length.

remember and allow for the edges though, 450mm all round I use.

 

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