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How to fix leaking between verandah and fascia?

My house in Brisbane have a leaking problem in the joint between verandah and fascia. Whenever it rains, there are some areas where water will start to drip down ( in red circle ). I have 2 roofers come to check from the roof and they say 2 differenct things. one says he suggests putting a flashing under the gutter and also put a gutter guard to prevent it from being blocked by leaves. The other one says he will put a flashing on top of the gutter like the last picture so it can stop the leak and also prevent the leaves to get into the gutter. The second oppinion will cost me less money. I am very confused now not sure who is right. plz share your thoughts on this for me thank you heaps 🙏🙏🙏

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Comments

OG_Bee

Option two looks like it will require less maintenance in the long run, my only concern would be if the pitch of your verandah will be sufficient to allow water to travel away fast enough in heavy falls. Is the verandah roof flat? Or does it have a slight angle possibly? The second option does also look a lot neater in my opinion. Good luck!

thanhphongct1

https://www.workshop.bunnings.com.au/discussion/comment/62186#Comment_62186

the verandah roof is completely flat

AlanM52

https://www.workshop.bunnings.com.au/discussion/comment/93580#Comment_93580

Hi @thanhphongct1,

RE: the verandah roof is completely flat.

That's the problem or root cause of the water issues.

Screenshot 2026-01-28 005016.jpg

I don't see any slope there should be (about) a 5° fall and that's because there are no battens/purlins installed!

There should be at least two the correct size to maintain the fall.

Also note @OG_Bee's comment 'my only concern would be if the pitch of your verandah will be sufficient...'.

Have of read of this How to re-roof a flat patio structure with enough run for drainage? and I will wait to see what comes back...

Cheers

MitchellMc

https://www.workshop.bunnings.com.au/discussion/comment/62186#Comment_62186

Hi @thanhphongct1,

Both of the solutions your roofers have suggested could potentially work, but it’s important to be clear about what is actually causing the leak in the first place. The key question is whether the leak only occurs when the gutter is blocked with leaves, or if it happens even when the gutter is clean. When was the last time the gutters were fully cleared, and did the leak stop for a period after that?

Adding flashing or a gutter guard will help if the problem is debris blocking the gutters and causing overflow. In that case, either solution could address the leak and the guards would also help prevent future blockages. However, if there’s an underlying issue with the roof or the connection between the verandah and the fascia, such as the gutter not sitting at the correct angle, or gaps where water can get behind the gutter, then these fixes may not fully resolve the problem. Sealant can help close minor gaps, but if water is getting in because of how the roof and gutter meet, you may need a more structural solution to properly stop the leak. Having the roof without the required fall is definately an issue.

I would recommend asking both installers to clarify exactly what their solution addresses. Will it stop the leak under all conditions, or only when the gutter is free of debris? Make sure you understand whether additional work is needed to improve the connection between the roof and the gutter so you don’t end up with ongoing problems.

Please let me know if you have any questions.

Mitchell

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