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How to repair rusted gutters?

Hi,

The gutters on my granny flat are rusting thru so I'm looking for a way to repair them.

I've used Icon Plastics 2.4m PVC Cloudburst Gutters on a aviary:

https://www.bunnings.com.au/icon-plastics-2-4m-pvc-cloudburst-gutter_p477012

This PVC gutter will fit in the existing metal gutter except for the outside edge, see the marked section on the photo below of an end cap mock up.

Originally, I thought about modifying all of the PVC gutters before inserting, but I might be able to bend them and only modify the end piece & end cap. (As long as they don't get hung up on the exising hangers)

I'm still thinking about how to connect to the downspout.

One thought it to insert PVC gutters all the way to the downspout and just let them flow into the downspout.

But, water can flow back under the PVC gutter and out the holes in the metal gutter.

I could seal the PVC gutter to the metal gutter by the downspout but would need to use something like "Selleys All Clear" since the metal gutters are rusty and grimmy.

But, I'd rather not use a strong chemical sealent since the gutters feed a drinking water tank.

All thoughts appreciated, thanks!

Gutter end cap modification

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Comments

EricL

Hello @Steve5

Putting the PVC gutter inside the metal gutter will trap moisture in between them every time it rains and when condensation forms in the morning. This trapped moisture will accelerate the deterioration of your metal gutter.

Why not just remove the old metal gutter and do a direct replacement of the gutter itself rather than sliding it inside the old one?

The Icon Plastics 3m PVC Gutter can be installed in the same manner as metal gutters. They have their own set of gutter clips and joiners.

In regards to the downspout, the PVC gutter can be cut, and you can install a Rain Harvesting 90mm Round Female Gutter Outlet which will fit inside a standard 90mm downpipe. If, however, you have a rectangular downpipe you can install a quare dropper or put in a converter from round to rectangle.

If you have any other questions we can help with, please let us know.

Eric

Steve5

While looking for end caps, I found there was a gutter with a larger profile which is probably what I installed on my aviary:

https://www.bunnings.com.au/icon-plastics-3m-pvc-gutter_p4775009

Using the smaller gutter profile in my first posting will work without modifying it.

Still thinking about how to connect to the downspout.

Nice we're getting some rain now, hope my duct tape gutter repairs hold..

Steve5

https://www.workshop.bunnings.com.au/discussion/comment/26930#Comment_26930

Hi Eric,

I'd like to replace the gutters but I'd need to remove patio awnings which have flashing attached to the gutters.

Thanks for info on the gutter outlet, what is a good way to cut a round hole in the PVC gutter?

Use outlet for a template, use board in gutter and clamp to work bench then drill hole and use jig saw?

Thanks,

Steve

Steve5

https://www.workshop.bunnings.com.au/discussion/comment/76129#Comment_76129

Hello again Eric,

Can you help with finding the correct end caps?

Is this the correct right side end cap?

https://www.bunnings.com.au/icon-plastics-pvc-gutter-stop-end_p4775067

I can't find the left side end cap with the same dimensions.

Thanks!

EricL

https://www.workshop.bunnings.com.au/discussion/comment/101932#Comment_101932

Hello @Steve5

Would it be possible for you to post a photo of your patio awnings? It will give our members a better idea of how your old gutters are linked to its structure. Perhaps there is a way to remove the old gutters without having to do a major disassembly of the awning set.

In regards to drilling a hole in the PVC gutter, I suggest using a Hole Saw. I recommend double checking the size of your dropper before you drill into the PVC gutter.

The PVC end caps are the Icon PVC Lefthand Gutter Stop End I/N: 4775075 and Icon Plastics PVC Gutter Stop End I/N: 4775067. I suggest looking very carefully inside the stock box at the store as these ends often get mixed into a single box. However, if none are present, I suggest reaching out to a helpful plumbing team member so that they can get one for you.

If you need further assistance, please let us know.

Eric

Dave-1

@Steve5

I use to have holy gutters... So Holy you could see the stars through them in places.

I used

Gutter repair tape

It kind of worked... Tho my gutters were too far gone in numerous places. I did bite the bullet and had the gutters replaced as I was not confident of doing it myself. Since then tho I have helped a mate out installing them on his garage and it was easy (Kicking myself how easy it was)

Would love to see some photos of that flashing attached to the gutters. The tape worke dfor me and I ended up using 2 lots worth.

Dave

Steve5

https://www.workshop.bunnings.com.au/discussion/comment/117951#Comment_117951

Hi Eric,

It looked like the flashing was glued to the gutter, I'll take some photos when the rain stops.

The dimension for the left end cap looks like its for the larger size PVC gutter:

W H I/N Description

120 85 4775009 Icon Plastics 3m PVC Gutter

120 80 4775075 Icon Plastics PVC Lefthand Gutter Stop End

100 60 4770129 Icon Plastics 2.4m PVC Cloudburst Gutter (need this smaller one to fit inside existing metal gutter)

110 60 4775067 Icon Plastics PVC Gutter Stop End (looks like Righthand, 10mm overlap seems too much..)

The inside of the dropper is about 80mm so I'd go with this one, I'll look for hole size to fit:

https://www.bunnings.com.au/rain-harvesting-75mm-round-gutter-outlet_p4761125

I'd like to order online and have delivered along with other project materials.

Steve

Steve5

https://www.workshop.bunnings.com.au/discussion/comment/26953#Comment_26953

Hey Dave,

Waterproof tape might be an option as only one big hole I've blocked with duct tape.

Yeah, these gutters easy to install. I installed some on a bird aviary I built.

I'll post photos when rain stops.

thanks!

EricL

https://www.workshop.bunnings.com.au/discussion/comment/26953#Comment_26953

Hi @Steve5

Can you please tell me which store you're planning to order these parts from? I'll have a quick chat with the plumbing specialist concerning the ends for the cloudburst. Once I have more information, I'll let you know.

Eric

Steve5

https://www.workshop.bunnings.com.au/discussion/comment/76141#Comment_76141

Hi Eric, Gympie QLD, thanks!

EricL

https://www.workshop.bunnings.com.au/discussion/comment/101938#Comment_101938

Hi @Steve5

I've spoken to the plumbing specialist at the Gympie store, and they have physically tested the ends on the cloudburst gutter. It is confirmed that item number 4775067 RH end and 4775075 LH end are the correct parts for the cloudburst gutter. You can place those item numbers in your order and be confident that you have the right parts.

If you need further assistance, please let me know.

Eric

Steve5

https://www.workshop.bunnings.com.au/discussion/comment/117953#Comment_117953

Thanks EricL!

Steve5

https://www.workshop.bunnings.com.au/discussion/comment/117951#Comment_117951

Patio roof flashing is riveted to the metal gutters:

MitchellMc

Thanks for the image, @Steve5. I'd be of the opinion that it would be best to remove the existing gutters and replace them. You'll then have resolved the issue and won't need to worry about the outer steel gutter rusting further. It's potentially going to be a bit more work than slipping PVC gutters inside the existing, but a much more direct approach to resolving the issue. The flashing being riveting to the gutter is a bit of an issue, though it should only take a couple of minutes to drill out the rivets and install it back onto the new gutter.

Mitchell

Steve5

https://www.workshop.bunnings.com.au/discussion/comment/27023#Comment_27023

Yeah, always good to do the job right but don't always have the time. Waterproof tape will be the bandaid for short term.

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