I have a rainwater downpipe which comes down from a gutter and discharges
onto a sloping tiled roof below a dormer window. At the bottom edge of the
roof is another gutter with, naturally enough, its own downpipe. All this
in conventional uPVC.

When the rain is heavy and the wind strong, the run-off from the
intermediate downpipe is blown off the edge of the tiles and cascades down.
I'd like to add an extra pipe run to direct the water straight into the
lower gutter, but is there a reliable way of fixing it to the (heavy clay)
tiles? Are there custom-made clips or similar? Or a practical DIY
solution?

Many thanks.

I'd be doing a little more fault finding first. if its overloading the
gutter, then it will still overload it surely? What is needed is some kind
of way to increase the capacity of the emptying of said gutter, say a second
downpipe.
Brian

--
----- -
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please!
"Bert Coules" wrote in message
o.uk...
I have a rainwater downpipe which comes down from a gutter and discharges
onto a sloping tiled roof below a dormer window. At the bottom edge of the
roof is another gutter with, naturally enough, its own downpipe. All this
in conventional uPVC.

When the rain is heavy and the wind strong, the run-off from the
intermediate downpipe is blown off the edge of the tiles and cascades
down. I'd like to add an extra pipe run to direct the water straight into
the lower gutter, but is there a reliable way of fixing it to the (heavy
clay) tiles? Are there custom-made clips or similar? Or a practical DIY
solution?

Many thanks.

On 18/05/2018 10:30, Bert Coules wrote:
I have a rainwater downpipe which comes down from a gutter and
discharges onto a sloping tiled roof below a dormer window. At the
bottom edge of the roof is another gutter with, naturally enough, its
own downpipe. All this in conventional uPVC.

When the rain is heavy and the wind strong, the run-off from the
intermediate downpipe is blown off the edge of the tiles and cascades
down. I'd like to add an extra pipe run to direct the water straight
into the lower gutter, but is there a reliable way of fixing it to the
(heavy clay) tiles? Are there custom-made clips or similar? Or a
practical DIY solution?

I had a similar problem with run-off from a flat roof that was taken
down a pipe and then discharged onto the slope of the roof below. The
intention being that it would then flow to the main gutter. In heavy
rain however it would emerge from the first down pipe with sufficient
force to almost miss the next roof, and project off the edge.

I found that by adding some extra flashing to the top of the shoe at the
discharge point of the first pipe, so that it forced the water to eject
from that at a slight down angle, and over a wider area, was enough to
get it to hit the tiles closer over a wider area. That stopped the wind
flinging it off the roof. Then it would correctly flow into the second
stage gutter.


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

Bert Coules wrote on 18/05/2018 :
When the rain is heavy and the wind strong, the run-off from the intermediate
downpipe is blown off the edge of the tiles and cascades down. I'd like to
add an extra pipe run to direct the water straight into the lower gutter, but
is there a reliable way of fixing it to the (heavy clay) tiles? Are there
custom-made clips or similar? Or a practical DIY solution?

Could you make some brackets from thin folded stainless steel, which
you could push up under a tile to hook onto a lath - then fix a normal
pipe bracket on to that? Clay tile are usally just fixed in place on
the lath, by a molded lip on the top underside of each tile. That makes
them easy to replace, by simply levering the upper back edge up.

A folded bracket with a similar small lip at it top underside, should
be able to latch on just like the tiles.

Thanks for the replies. Brian, the problem is not that the discharge is
overloading the gutter, it's that with a high cross-wind it's not even
reaching the gutter: it's blown away from it, to cascade off the side of the
roof, where there is no guttering.

I had wondered about some sort of clips, so Harry thanks for that; and the
thought of directing the flow with flashing is a good one too, so thanks
John.