aidy55

No issues spending a few quid on the screws but don't you think tec7 will hold it down and keep it watertight.

Plumber/fitter thinks tec7 would be a good choice for the flashing kit. This job is not something he has experience with, strugging to find someone in my area But i think it should be ok, we are going to put two bridgers then the roof support bracket inside the close off with the finishing plate. So only time we will go through the polycarbonate is the 200mm hole for the twin wall flue

My fitter actually mentioned this yesterday, he doesn't want to screw it down, he just wants to get a tight fit for the flashing and then silicone it. Maybe thats the best course of action.

I understand exactly what you mean. To be honest i think it will work fine without the support bracket. Funny enough, they forgot to send the flashing kit. Ive just sent them an email about this, this is the one they advised and pretty sure it's exactly what I need https://www.flue-pipes.com/roof-flashing-45-red.html

I have ordered a twin wall flue kit for my brick pizza oven, it must go through a polycarbonate roof. Flue pipes advised the products i needed but im unsure where the roof support fits, if it goes on top then where does the flashing kit fit and if its underneath then where does the finishing plate fit. https://www.flue-pipes.com/roof-support-125-10494.html Can anyone help with exact installations ive a competant plumber friend but its actually not his line of work. No one in the area have been much help