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Gri-Gri and ice?

  [ Forums > Climbing Gear Discussion ]		View Latest Posts in this Forum     Page 1 of 1.  

 
By Sergio P
From Idaho Springs, CO
Sep 28, 2009
World Champion NY Giants logo

Will a Gri-Gri still work effectivly if a rope is slightly frozen?

Here is my senerio:
I have a dry 10.2mm rope that I would slowly be rapping off using a gri-gri. It would likely be touching snow, but not expossed to the elements for more then 15min.

Here is the detailed senerio:
I set up a anchor system on my friend's roof so that he can clean snow off his solar pannels when it snows. I already put in the anchors and they are very sound. I then used a piece of dry rope for him to rap and accend with. I figured that he would be best served using a gri-gri since it it locks going up and down. However, I'm not sure about the effects of snow/ice on the rope with the use of the gri-gri. I've used a gri-gri many times.

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By Buff Johnson
From Coniferous, CO
Sep 28, 2009
What happens when you:<br />1) have nothing to do<br />2) own a sharp knife<br />3) have a large lime<br />4) own a patient cat<br />5) drink too much tequila<br />6) and it's football season?<br /><br />(An e-mail I received; just know that no cat was harmed in the carving of this lime. Dogs Rule!!)

I haven't had problems with the device; I usually tie a safety somewhere.

one bit of advice is to switch to a static line.

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By Buff Johnson
From Coniferous, CO
Sep 28, 2009
What happens when you:<br />1) have nothing to do<br />2) own a sharp knife<br />3) have a large lime<br />4) own a patient cat<br />5) drink too much tequila<br />6) and it's football season?<br /><br />(An e-mail I received; just know that no cat was harmed in the carving of this lime. Dogs Rule!!)

to work on a roof and clean off snow;

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By Phoenix
From louisville, colorado
Sep 28, 2009
Regular Route, A.K.A. Mark of Zorro<br />Boulder Canyon

misread.. or rather didn't finish reading the whole 5 sentences..

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By jmeizis
From Colorado Springs, CO
Sep 28, 2009
The Beginning of Mr. Clean (5.8) at the Barkeater Cliffs in Adirondack Park NY.

I got dropped being lowered with a gri-gri into the gorge at Ouray. It was extremely wet and icy. You'll probably be fine if you're getting a little snow on the rope but I would definately tie in short.

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By SAL
From broomdigiddy
Sep 28, 2009
good times.<br />

jmeizis wrote:
I got dropped being lowered with a gri-gri into the gorge at Ouray. It was extremely wet and icy. You'll probably be fine if you're getting a little snow on the rope but I would definately tie in short.



A good semi hidden point here. Tie in short rather then tie a back up not in the line. I mentioned this in another thread recently. If you tie a knot in the rope and you start to slide down the rope and the knot jams the device if the load is enough force it will pry the device open and you'll most likely deck. Tie in short to your harness at least keeps you on the line.

To the OP. 15minutes should be fine on a line. SOunds like if you got a line the length of the roof you could tie in direct to the end of the rope and use the grigri to move back and fourth always being in direct.


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By Sergio P
From Idaho Springs, CO
Sep 28, 2009
World Champion NY Giants logo

SAL wrote:
SOunds like if you got a line the length of the roof you could tie in direct to the end of the rope and use the grigri to move back and fourth always being in direct.


That was exactly what I was thinking would be best. That is also why I don't want to use a static. If the gri-gri slipped it would mean falling on a static line. Och!

Thanks for everyone's feedback.

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By Buff Johnson
From Coniferous, CO
Sep 29, 2009
What happens when you:<br />1) have nothing to do<br />2) own a sharp knife<br />3) have a large lime<br />4) own a patient cat<br />5) drink too much tequila<br />6) and it's football season?<br /><br />(An e-mail I received; just know that no cat was harmed in the carving of this lime. Dogs Rule!!)

someone f*cked a lower into the canyon, so the device will explode??
That's what I'm getting from the last few posts.

I guess whatever you do, just safety yourself short and don't jack an ascender if that's what you are going to use for your up.

you will wish you were working with a static, though; but go ahead and have fun with a sponge, your back will thank you later.

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By SAL
From broomdigiddy
Sep 29, 2009
good times.<br />

Buff Johnson wrote:
someone f*cked a lower into the canyon, so the device will explode?? That's what I'm getting from the last few posts. I guess whatever you do, just safety yourself short and don't jack an ascender if that's what you are going to use for your up. you will wish you were working with a static, though; but go ahead and have fun with a sponge, your back will thank you later.


Just to clarify. My post has nothing to do with the ouray story. i was just pointing out the risks of tying a knot in the rope to prevent you from sliding down the line.

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By Sergio P
From Idaho Springs, CO
Sep 29, 2009
World Champion NY Giants logo

Buff Johnson wrote:
you will wish you were working with a static, though; but go ahead and have fun with a sponge, your back will thank you later.


I went back and forth about static vs dynamic in this situation. However, the roof does not have a significant pitch so there will not be too much hanging on the rope. Actually, the roof not having enough of a pitch is the whole problem why the snow builds up and blocks the solar pannels. The best solution would be to put on a metal roof instead of shingles. However, that is a bit costly.


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