I'm using gravel to provide an incline for water run off away from the
house Managed to snag a load of gravel for nothing, so might as
well use it. Plus this is under the eaves of a house and the gutters
occasionally leak and overflow, so gravel is being used to
I have one layer of gravel inclined away from the house and would
like to place a waterproof membrane over this layer, and then place
another layer of gravel on top. The first layer is already inclined
away from the house.
What type of membrane or plastic sheeting would be best to
use? Something that is fairly durable and long lasting.
Thanks in advance !!
firstname.lastname@example.org wrote in news:u5877598iigth4i3np5nmr3p8otq08ukro@
And made to withstand water, temp extremes, sunlight and rocks on top?
Pond construction liner.
EDPM (vs PVC) liner would probably be the Crθme de la Crop.
You didn't say cheap.
Maybe try roofing supplier as well. I believe I've seen in this group
that EDPM is used in certain roofing applications. I know the pond liners
run 20 and 45 mil thick.
I agree that would certainly be the ultimate choice.
Some lower cost options include 4-6 mil plastic or a single row of roofing
shingles placed end to end.
I would use landscape fabric cut into strips. It is not water proof but
would serve the purpose of allowing heavy flow to run off.
install a perforated pipe running to daylight ...........
far better to upgrade to larger gutters and downspouts. water
cascading down side of home can cause big grief:( like rot, mold on
inside of home, detoriation of brick and even siding.
better to fix the real problem than try to redirect water.
I assume by gravel he means washed gravel or stone? If it's true
gravel, ie stones mixed with sand, clay, etc then I don;'t see the
point at all. Even with stone, it doesn't sound like a good plan to
put a membrane between the existing stone, then more stone on top.
The water has no place to go and with an irregular surface to the
membrane, will tend to pool up in spots and stay there until it
Normally, just having the grade slope away from the house is
sufficient to move water away
The ground is still generally sloping away from the house, but there
are a few problem areas that need to be fixed and erosion areas
which needed to be prevented. The area is under a gutter which,
doesn't seem to handle the torrential thunderstorms during the summer
Choice of material is more of an opportune thing.... I picked up
about one and a half tons of washed gravel no clay or soil....
sitting around doing absolutely nothing, so considered this would do
the job of preventing future erosion.... and because the gravel can
be inclined very nicely, a plastic membrane would help divert the
water into the backyard away from the foundation.... the fact
that some water MAY be retained in small pockets in the membrane
isn't all that important as there are foundation plants which could
use the moisture. I'm inclining the gravel about 24 " away from
the house, into another gently sloping area starting at 36 which
has foundation plants... so the runoff will have plenty of places
to be used.
Compelling reasons the gravel was 1 - free 2 already onsite 3 - I
needed to use it for something.. Beats the heck out of hauling fill
dirt. to regrade and then worry about compaction and erosion again.
Hopes that explains the why !!
On Sat, 1 Aug 2009 07:41:45 -0700 (PDT), email@example.com wrote:
On Fri, 31 Jul 2009 22:04:54 -0400, firstname.lastname@example.org wrote:
Thanks again for all the responses..... the pond liner membrane
seems to be the best and is readily available. Roofing material
is a second best. Both are good suggestions for the purpose.
Torrential downpours, those who have experienced them know
what they are like..... those who haven't experienced them haven't
a clue. This is Maryland, the humidity bowl of the East, with
the Chesapeake on one side and the mountains on the other. July
and August temps in the 90's and occasionally triple digits. High
humidity... I was actually watching the haze from evaporating water
yesterday while the thunderheads were starting to grow... hours later
it was coming down in buckets. An hour later the sun was out again.
Anyway... as always, thanks for sharing your knowledge and
experience. The people in this newsgroup are the most helpful in
the world !!!
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