How to seal the gap between the house and pergola guttering

Hi @AdamK1 good to hear from you, shame about the circumstances...
Any chance of a photo so we can get a better idea of what's happening there?

https://www.workshop.bunnings.com.au/discussion/comment/16998#Comment_16998

Sorry gents.. see photo attached

https://www.workshop.bunnings.com.au/discussion/comment/71085#Comment_71085

My eyes aren't good. A gutter close to a brick wall?

https://www.workshop.bunnings.com.au/discussion/comment/71085#Comment_71085

Hi @AdamK1 thanks for the photo.
That's really not a good install. In heavy rain or if gutters are blocked or have gutter-guard fitted then you will get overflow or over-splash. Impossible to avoid with the current configuration.
Custom flashing added between the gutter edge & house would reduce some of the problem but that won't fix the problem with overflowing in heavy rain.
Was that professionally installed or a DIY job?

https://www.workshop.bunnings.com.au/discussion/comment/98750#Comment_98750

Not too sure if professional or DIY - Only moved into the place a month ago and then last night discovered this..

https://www.workshop.bunnings.com.au/discussion/comment/98748#Comment_98748

Replace wood, with steel beam and you got it..

https://www.workshop.bunnings.com.au/discussion/comment/116141#Comment_116141

Okay, very rough diagram but I'm assuming your roof lines look a little like this?

Screen Shot.jpg

https://www.workshop.bunnings.com.au/discussion/comment/126072#Comment_126072

Correct!

https://www.workshop.bunnings.com.au/discussion/comment/132703#Comment_132703

"gap between the house and the pergola guttering."

Hi Adam - we had a somewhat similar problem a long time ago and for us the only solution was to reposition the pergola roof above the roof line.

Achieved with 'homemade' brackets...

EricL

https://www.workshop.bunnings.com.au/discussion/comment/71085#Comment_71085

Hello @AdamK1

Thank you for posting those photos. Let's talk about some of the symptoms of this type of setup. Are you getting dribbles of water coming down the wall or is it just the occasional water splash? Is the roof overflowing into the Gazebos gutter? In these instances, we can try some standard troubleshooting steps.

Perhaps the gutter needs a clean? If it has just been serviced odds are your downspouts are not coping with the volume of water being produced by your roof. Perhaps one of them is blocked?
Perhaps there is a blockage on the Gazebos downspout.
Another possible cause is the angle of the roof of the Gazebo is too steep and is causing the water to bypass the gutter.

If it is just splash-related wetness and not a water overflow issue you can cover the gap from the top with a Galvanized window flashing. I've placed a diagram below for you to see.

If you have any questions, please let us know.

Eric

https://www.workshop.bunnings.com.au/discussion/comment/98758#Comment_98758

Thanks for an excellent image there @EricL, just what I had in mind when I mentioned flashing earlier. Just looking and the style you'd want is technically apron rather than angle. You can have these custome made in a size to suit.
As @Noyade pointed out the ideal structure for such a situation is for the additional roof to be above, not below the existing roofline but that then poses it's own issues as you generally have roof mounting involved etc.
There's also an excellent bitumen impregnated foam expansion tape that is fantastic for waterproofing such situations, I've used it to fix a roof valley gutter leak. Can't find it on-line but if I can I'll link to it for you.

https://www.workshop.bunnings.com.au/discussion/comment/116143#Comment_116143

"Perhaps the gutter needs a clean?"

Never thought of that simple solution. 🙁

Well played Eric!

MitchellMc

https://www.workshop.bunnings.com.au/discussion/comment/116143#Comment_116143

@Adam_W,

We can order custom made angles using the clock method from Fielders. Their type 44 or the angle I've put together on the right could be suitable.

The bitumen impregnated foam is Compriband from Ormonoid. I know Abelflex, which is just the foam, has a sticky back version. I'm not sure whether Ormonoid makes a sticky back bitumen impregnated one, or perhaps it's a different supplier. It sounds like the bee's knees though and would be ideal if you can compress it between the guttering/flashing and the wall.

Mitchell

https://www.workshop.bunnings.com.au/discussion/comment/126074#Comment_126074

That's very handy to know re the flashing @MitchellMc , thank you.

And Compriband, that's the stuff. Fantastically useful in situations where you can compress it to create a seal.