How to install an overflow pipe

[@Jimmy_Mate]

Thanks for taking the time to make this great step by step video!

[@adamali2886]

If water from the internal box gutters is going back into the roof and into the eaves should a person install overflow exits in the internal box gutters to stop the water from going back into the roof and into the eaves from the internal box gutters?

[@dennisperrie]

you can it depends on the design of the roof and the box gutters

[@adamali2886]

@@dennisperrie How big is the hole of the overflow exit in the internal box gutters and do overflow exits in internal box gutters damage the wooden fascias?

[@dennisperrie]

@@adamali2886 I am not sure the gutter type you are talking about, but the size can vary, and I generally use a 32mm pipe but that can change

[@adamali2886]

@@dennisperrie the gutter is a internal box gutter

[@danqiao5179]

What's the glue are you using in the last?

[@dennisperrie]

roof plumbing silicone or roofing silicone.

[@danqiao5179]

@@dennisperrie thanks

[@charliearida4962]

I don’t think the over flow should line up with the low side(valley) of the corrugated iron sheet it should line up with the ridge (high side)
Just a thought

[@dennisperrie]

It all depends on when you want it to kick in and get rid of your water. If you want it to kick in early and take more water, then lower is good. If you want it to help with volume when the gutter is full, then you an go a bit higher. We generally talk to the owner and ask what he wants