Discussion:
methods of setting up a tarp
(too old to reply)
Ben Crowell
2010-03-14 03:59:37 UTC
Permalink
I posted a while back about methods of setting up tarps,
whether it's necessary to chop up your rope into tiny parts,
etc. Lots of useful replies. Since then, I've used my tarp
once on a drizzly night, and chickened out from using it once
on a really rainy night when other shelter was available.
After playing around in the back yard with various setups,
I'm interested in hearing more about tarp techniques.

I'm using a one-man, rectangular sil-nylon tarp with 6
loops around the perimeter.

The method that worked for me on the drizzly night was simply
to use tent stakes to tie down one edge directly on the ground,
while stringing the opposite corners up to trees.

What I'm working on now is how to deal with a harder rain,
where I really don't want to leave so much open. Conventional
wisdom seems to be to leave a few inches below the tarp's
edges on all sides, so that condensation doesn't build up.

I played around in the back yard with stringing one length
of rope around the entire perimeter of the tarp, with loops
of rope extending down to the stakes. This didn't seem so
great, because it was hard to keep all the edges from
snugging down too close to the ground.

The straightforward solution seems to be to cut some of my rope
into 4-6 short sections, using each one to tie one loop to one
stake using bowlines. This way I could presumably get the tarp
off the ground a little and allow ventilation.

I dislike trekking poles, so I'm interested in setups that
don't require using poles to hold up parts of the tent.

There seem to be a lot of simple setups that use a ridgeline
strung between two trees. This may be fine in realistic
conditions, where you can always find two trees close
together; I'm just not able to test it in my back yard,
where I don't happen to have 2 trees with a patch of
empty ground in between.
Glenn Holliday
2010-03-14 14:47:48 UTC
Permalink
Post by Ben Crowell
I played around in the back yard with stringing one length
of rope around the entire perimeter of the tarp, with loops
of rope extending down to the stakes. This didn't seem so
great, because it was hard to keep all the edges from
snugging down too close to the ground.
I was taught one advantage of this method is that in wind,
the force distributes around the entire perimeter and you're
less likely to rip the tarp at an attachment point or pull
out a stake. Also, you only need 1 knot to make the rope a
single loop (you just use loops at the stakes), which
preserves the strength of the rope (though in high wind
the fabric is likely to fail before the rope does).
I haven't had occasion to test this theory in serious winds.
It did take me a couple of tries to be able to make this
setup nice and evenly tensioned. And you carry a longer
rope. On the plus side, if you need a long rope during
the day, you have it, so you sometimes get some dual-use.
Post by Ben Crowell
There seem to be a lot of simple setups that use a ridgeline
strung between two trees. This may be fine in realistic
Yes, ridgeline is nice and simple where you have favorable trees.
--
Glenn Holliday ***@acm.org
Wayne
2010-03-14 15:55:10 UTC
Permalink
Post by Ben Crowell
I posted a while back about methods of setting up tarps,
whether it's necessary to chop up your rope into tiny parts,
etc. Lots of useful replies. Since then, I've used my tarp
once on a drizzly night, and chickened out from using it once
on a really rainy night when other shelter was available.
After playing around in the back yard with various setups,
I'm interested in hearing more about tarp techniques.
I'm using a one-man, rectangular sil-nylon tarp with 6
loops around the perimeter.
The method that worked for me on the drizzly night was simply
to use tent stakes to tie down one edge directly on the ground,
while stringing the opposite corners up to trees.
What I'm working on now is how to deal with a harder rain,
where I really don't want to leave so much open. Conventional
wisdom seems to be to leave a few inches below the tarp's
edges on all sides, so that condensation doesn't build up.
I played around in the back yard with stringing one length
of rope around the entire perimeter of the tarp, with loops
of rope extending down to the stakes. This didn't seem so
great, because it was hard to keep all the edges from
snugging down too close to the ground.
The straightforward solution seems to be to cut some of my rope
into 4-6 short sections, using each one to tie one loop to one
stake using bowlines. This way I could presumably get the tarp
off the ground a little and allow ventilation.
I dislike trekking poles, so I'm interested in setups that
don't require using poles to hold up parts of the tent.
There seem to be a lot of simple setups that use a ridgeline
strung between two trees. This may be fine in realistic
conditions, where you can always find two trees close
together; I'm just not able to test it in my back yard,
where I don't happen to have 2 trees with a patch of
empty ground in between.
-
I have used two different methods, both with a single front support. The
support can be a trek pole or a tree.

For square tarps, peg one corner and support the opposite diagonal
corner...then stake down the other two corners. That leaves an open
entrance with a bit of overhang.
For rectangular tarps, peg down a side and support the center of the
opposite side. Depending on the size of tarp, and whether the long or short
side is pegged down, there will be some hanging flaps at the front to cover
some part of the entrance.

I haven't don either of these in years, considering the size/weight of a
fully enclosed backpacking tent.
Chick Tower
2010-03-14 21:58:15 UTC
Permalink
...I'm using a one-man, rectangular sil-nylon tarp with 6
loops around the perimeter.
The method that worked for me on the drizzly night was simply
to use tent stakes to tie down one edge directly on the ground,
while stringing the opposite corners up to trees.
What I'm working on now is how to deal with a harder rain,
where I really don't want to leave so much open. Conventional
wisdom seems to be to leave a few inches below the tarp's
edges on all sides, so that condensation doesn't build up.
...
The straightforward solution seems to be to cut some of my rope
into 4-6 short sections, using each one to tie one loop to one
stake using bowlines. This way I could presumably get the tarp
off the ground a little and allow ventilation.
....
You didn't tell us much about your rope or tarp sizes, so it's hard to
tell if our advice is appropriate. You might be able to stake both
sides to the ground with your rope as a ridgeline, and not need to cut
your rope. You might use other pieces of light line for attaching loops
to stakes if you want some extra clearance around the sides, although
the "pup tent" form ought to provide plenty of ventilation to minimize
condensation. You could modify the method you used in your backyard
so that one side is staked to the ground and the other hangs over a
ridgeline and reaches only part-way to the ground, providing plenty of
ventilation but extra protection from rain. In general, the more
precipitation or wind, the lower you want your tarp.

Rather than using a bowline with line used to connect loops and stakes,
I would recommend either the taut-line hitch or tarbuck knot so you can
easily adjust the length. Tie them next to the tarp edge rather than
by the stakes so you don't have to bend over as far to adjust them.
The clove hitch or a round turn with two half-hitches are good for
attaching line to trees.
--
Chick Tower

For e-mail: rbc DOT sent DOT towerboy AT xoxy DOT net
Ben Crowell
2010-03-15 04:11:39 UTC
Permalink
Post by Chick Tower
You didn't tell us much about your rope or tarp sizes, so it's hard to
tell if our advice is appropriate.
It's a 5x8 tarp. Rope length can be whatever I feel like bringing.
ShadowTek
2010-03-15 02:37:50 UTC
Permalink
Post by Ben Crowell
I dislike trekking poles, so I'm interested in setups that
don't require using poles to hold up parts of the tent.
I suggest carrying some lightweight collapseable trekking poles even
if you don't normally use them.
You'll be very glad to have them if you twist you knee or ankle.

Here's some reading on tarp shelters.
http://www.sendspace.com/file/5qrore

The download link is at the bottom of the page.
Ben Crowell
2010-03-15 04:09:24 UTC
Permalink
Post by ShadowTek
Here's some reading on tarp shelters.
http://www.sendspace.com/file/5qrore
The download link is at the bottom of the page.
Wow, that's quite an exhaustive document! I think a better url to give
out is http://equipped.org/tarp-shelters.htm -- inside the document,
this is where it tells you the most current version always is. The
sendspace.com site seems pretty sleazy (popup telling me I won a
contest, which I had 118 seconds to claim ... ugh :-).
nothermark
2010-03-16 11:47:01 UTC
Permalink
On Mon, 15 Mar 2010 02:37:50 +0000 (UTC), ShadowTek
Post by ShadowTek
Post by Ben Crowell
I dislike trekking poles, so I'm interested in setups that
don't require using poles to hold up parts of the tent.
I suggest carrying some lightweight collapseable trekking poles even
if you don't normally use them.
You'll be very glad to have them if you twist you knee or ankle.
Here's some reading on tarp shelters.
http://www.sendspace.com/file/5qrore
The download link is at the bottom of the page.
page loaded with popups and wanting you to download a file? Assuming
it is good information I only an idiot will ever see it.
ShadowTek
2010-03-16 20:57:38 UTC
Permalink
Post by nothermark
page loaded with popups and wanting you to download a file? Assuming
it is good information I only an idiot will ever see it.
My killfile asked me to ask you where the "idiot" part comes into
play.

Loading...