Guttering box repairs

[rangor gubbins]

We've got a leaky box gutter where our conservatory joins the house.
I'm planning to use butyl tape to put a new layer over the top of the existing gutter. Ideally the old gutter needs to be clean and dry. Not sure how I'm going to achieve that. Other than that, I'm hoping it will be fairly straight forward, just awkward due to access.
Anyone done something like this before or have any tips / suggestions?

 

[Bluecube]

Wait till it’s dry outside and use kitchen towel or blue roll to dry the area where the tape is going as much as possible. Fix the butyl tape in place then blow a hairdryer or heat gun over the tape to mould the tape and fix it into place. Watch you don’t melt the gutter - the tape only needs a few seconds of heat.

 

[DXP55]

Duck tape and a pair of Val's knickers. Perfect for the job.

 

[rangor gubbins]

Wait till it’s dry outside and use kitchen towel or blue roll to dry the area where the tape is going as much as possible. Fix the butyl tape in place then blow a hairdryer or heat gun over the tape to mould the tape and fix it into place. Watch you don’t melt the gutter - the tape only needs a few seconds of heat.

Thanks. I've got a heat gun so will use that on its lowest setting. Also got a little roller on its way which should help bond the two materials

 

[Macky]

We've got a leaky box gutter where our conservatory joins the house.
I'm planning to use butyl tape to put a new layer over the top of the existing gutter. Ideally the old gutter needs to be clean and dry. Not sure how I'm going to achieve that. Other than that, I'm hoping it will be fairly straight forward, just awkward due to access.
Anyone done something like this before or have any tips / suggestions?

Do you plan to replace the box gutter eventually? We have one and I'm scratching my head as to how one would replace it due to access!? I suppose part of the conservatory roof would need removing.

 

[rangor gubbins]

Do you plan to replace the box gutter eventually? We have one and I'm scratching my head as to how one would replace it due to access!? I suppose part of the conservatory roof would need removing.

probably at some point in the distant future, but maybe with a new conservatory as well. I think you're right, some or all of the roof would have to come off to replace the box gutter.

 

[rangor gubbins]

So, after spending most of the day on the conservatory roof (first few hours just to figure out how to access and safely walk on the roof), I think its not the box gutter that's leaking but a bodge join where an extension was done. I think to do the extension a downpipe was removed from the conservatory guttering, and then the two ends joined together with what looks like fiberglass except its bendy and not well attached. Access is really difficult (there's a soil pipe there too getting in the way!), and because its where a downpipe used to be its a low point in the guttering so nigh-impossible to get dry at this time of year. But I formed a kind of gutter out of butyl tape and stuck it over the fiberglass join as best I could. I'm not certain it will solve the issue, but can't think of any other way to tackle it without putting scaffolding up, removing the fiberglass and doing a stronger more stable join. Might have to try again in the summer when its warm and dry.