Plastic panel roof - correct gutter overhang

[Richard Savage]

The roof of my carport is approx. 9 m x 5 m and has a slope of about

15deg towards one of the long sides. It's covered with two rows of that nasty corrugated plastic sheeting. This was fitted very poorly such that the plastic-to-gutter overhang ranges from nothing to perhaps 25 mm and it is broken at places along the edge. So, water can run into the gutter, drip between gutter and fascia, shoot straight across the gutter or fall through the holes. What a mess!!

I'm going to remove the panels which overhang the gutter and refit them so that the damaged edges are covered by the overlap with the top panels.

Question: what's a sensible overhang? The gutter is 112mm half round.

TIA

Richard

[Grunff]

About 1/4-1/2 way over the gutter. Don't forget to take the gutter bracket into account.

[Richard Savage]

Thanks.

The brackets were the source of much angst! In attempt to capture the water that was shooting over the gutter, when I re-hung (re-hanged?) the gutter to ensure an even fall (don't ask) I fitted spacers behind the brackets. This worked perfectly where the water had been over-shooting the gutter and not at all where the water could then drip between gutter and fascia! ********x. Hence all the, planned, sodding about with roof panels.

Cheers

Richard