Roof runoff
 

Any advice about roof runoff which shoots
over eavestroughs?

Problem occurs at two corners of a steeply gabled
roof over a deck. Rainfall collects in such volume
that at the corners it shoots a foot or more horizontally
before falling 18 feet to the deck, where at one corner it
damages the stained railings, and at the other has
encouraged rot in several siding boards below the deck.
We added eavestroughs and a downspout elsewhere,
curing a similar problem, but do not know what to do
about the corners, where damage now is worse after
an unusually rainy summer.
--
Don Phillipson
Carlsbad Springs
(Ottawa, Canada)

Roof runoff
 

Don Phillipson wrote:
Any advice about roof runoff which shoots
over eavestroughs?

Problem occurs at two corners of a steeply gabled
roof over a deck. Rainfall collects in such volume
that at the corners it shoots a foot or more horizontally
before falling 18 feet to the deck, where at one corner it
damages the stained railings, and at the other has
encouraged rot in several siding boards below the deck.
We added eavestroughs and a downspout elsewhere,
curing a similar problem, but do not know what to do
about the corners, where damage now is worse after
an unusually rainy summer.

I have noticed vertical metal barriers sticking up a foot or so at those
corners on roofs here in Florida, which gets heavy thunderstorms.

Lou

Roof runoff
 

"LouB" wrote in message
...
Don Phillipson wrote:
Any advice about roof runoff which shoots
over eavestroughs?

Problem occurs at two corners of a steeply gabled
roof over a deck. Rainfall collects in such volume
that at the corners it shoots a foot or more horizontally
before falling 18 feet to the deck, where at one corner it
damages the stained railings, and at the other has
encouraged rot in several siding boards below the deck.
We added eavestroughs and a downspout elsewhere,
curing a similar problem, but do not know what to do
about the corners, where damage now is worse after
an unusually rainy summer.

I have noticed vertical metal barriers sticking up a foot or so at those
corners on roofs here in Florida, which gets heavy thunderstorms.

We have shorter ones here up north of the border to deflect the water into
the gutters/eaves trough.

Roof runoff
 

Don Phillipson wrote:

Any advice about roof runoff which shoots
over eavestroughs?

Problem occurs at two corners of a steeply gabled
roof over a deck. Rainfall collects in such volume
that at the corners it shoots a foot or more horizontally
before falling 18 feet to the deck, where at one corner it
damages the stained railings, and at the other has
encouraged rot in several siding boards below the deck.
We added eavestroughs and a downspout elsewhere,
curing a similar problem, but do not know what to do
about the corners, where damage now is worse after
an unusually rainy summer.


Folks here install a vertical sheet at the corners which directs the
water into the gutter.

Roof runoff
 

EXT wrote:


"LouB" wrote in message
...

Don Phillipson wrote:

Any advice about roof runoff which shoots
over eavestroughs?

Problem occurs at two corners of a steeply gabled
roof over a deck. Rainfall collects in such volume
that at the corners it shoots a foot or more horizontally
before falling 18 feet to the deck, where at one corner it
damages the stained railings, and at the other has
encouraged rot in several siding boards below the deck.
We added eavestroughs and a downspout elsewhere,
curing a similar problem, but do not know what to do
about the corners, where damage now is worse after
an unusually rainy summer.


I have noticed vertical metal barriers sticking up a foot or so at
those corners on roofs here in Florida, which gets heavy thunderstorms.


We have shorter ones here up north of the border to deflect the water
into the gutters/eaves trough.

Florida here......the thingies are arched and generally about 3 or 4
inches higher than roof surface. That's just a guestimate, but I'm sure
they aren't a foot high. Rained here last night and water coming off
the side of the roof was no more than about an inch.

Roof runoff
 

You need deflectors on inside corners like that. They will divert the gush
sideways right into the gutters. Any decent gutter outfit should have
installed them.

s


"Don Phillipson" wrote in message
...
Any advice about roof runoff which shoots
over eavestroughs?

Problem occurs at two corners of a steeply gabled
roof over a deck. Rainfall collects in such volume
that at the corners it shoots a foot or more horizontally
before falling 18 feet to the deck, where at one corner it
damages the stained railings, and at the other has
encouraged rot in several siding boards below the deck.
We added eavestroughs and a downspout elsewhere,
curing a similar problem, but do not know what to do
about the corners, where damage now is worse after
an unusually rainy summer.
--
Don Phillipson
Carlsbad Springs
(Ottawa, Canada)

Roof runoff
 

Norminn wrote:
Don Phillipson wrote:

Any advice about roof runoff which shoots
over eavestroughs?

Problem occurs at two corners of a steeply gabled
roof over a deck. Rainfall collects in such volume
that at the corners it shoots a foot or more horizontally
before falling 18 feet to the deck, where at one corner it
damages the stained railings, and at the other has
encouraged rot in several siding boards below the deck.
We added eavestroughs and a downspout elsewhere,
curing a similar problem, but do not know what to do
about the corners, where damage now is worse after
an unusually rainy summer.


Folks here install a vertical sheet at the corners which directs the
water into the gutter.
Hi,
Same here in Alberta.

Roof runoff
 

"Don Phillipson" wrote in message
...

Problem occurs at two corners of a steeply gabled
roof over a deck. Rainfall collects in such volume
that at the corners it shoots a foot or more horizontally
before falling 18 feet to the deck, where at one corner it
damages the stained railings, and at the other has
encouraged rot in several siding boards below the deck.

"Steve Barker DLT" wrote in message
...

You need deflectors on inside corners like that. They will divert the
gush
sideways right into the gutters. Any decent gutter outfit should have
installed them.

But these are outside corners (of the main roof) not inside corners.

--
Don Phillipson
Carlsbad Springs
(Ottawa, Canada)

Roof runoff
 

Don Phillipson wrote:
....

But these are outside corners (of the main roof) not inside corners.

So you put the splash lips on the outside of the gutters.

A (smaller) set on the inner and some diverters installed higher up to
slow the flow rate would also help...

--

Roof runoff
 

You need deflectors on inside corners like that. They will divert the
gush sideways right into the gutters. Any decent gutter outfit should have
installed them.

But these are outside corners (of the main roof) not inside corners.

If you have water escaping at outside corners where the roof
doesn't funnel the water then the spillage is coming from turbulence.
When the water tries to flow around that outside corner it is impeded
just enough to overflow.

Install the elevated sidewall and it may contain the water long enough
to maintain the desired flow. It may also create a scenario where the
inside of the gutter overflows and damages the roof?

Roof runoff
 

Roof runoff
 

In that case, it needs more downspouts.

s


"Don Phillipson" wrote in message
...
"Don Phillipson" wrote in message
...

Problem occurs at two corners of a steeply gabled
roof over a deck. Rainfall collects in such volume
that at the corners it shoots a foot or more horizontally
before falling 18 feet to the deck, where at one corner it
damages the stained railings, and at the other has
encouraged rot in several siding boards below the deck.

"Steve Barker DLT" wrote in message
...

You need deflectors on inside corners like that. They will divert the
gush
sideways right into the gutters. Any decent gutter outfit should have
installed them.

But these are outside corners (of the main roof) not inside corners.

--
Don Phillipson
Carlsbad Springs
(Ottawa, Canada)