Here's an installation guide:
Here's an installation guide:
For mine, it was actually on the 'collector' part that sits between the gutter and downspout - it had a lines showing different expansion factors for different lengths of guttering and temperature ranges. Buggered if I could make sense of it, though, so I just winged* it :-)
Oh very few houses here bother to collect roof run-off into any kind of drainage system / soakaway - people just let it spill from the downspout straight onto the surrounding ground. I don't recall ever seeing that in any other country.
cheers
Jules
I've only ever seen internal ones here. I had metal ones last year, and ice build-up in winter tore the whole lot down - the supplied fixing screws snapped where they attached to the fascia.
I've replaced with plastic ones this year and will see how that goes. I think the problem with the metal ones was that they had a U-shaped portion, so the fixing screws went through metal, then an inch or so of gap, then more metal; under severe load the U-shaped portion would distort and make the screw go slack, at which point the whole gutter was able to twist and snap the screws. With the plastic ones, the screw just goes through a big lump of plastic, so the gutter should remain clamped tight to the house even under extreme load.
cheers
Jules
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