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ivanbigtoe
I dont see how you think you can clean gutters @ 7.5m with a 7.5m ladder which will be about 5.5m when set up ( unless its a jacobs ladder) or your'e 14 ft tall :Image4:
Smurf
Well-known member
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T
The Gutter Goblin
Hi Ivan, this is written as being informative and not a lecture. :Image3:
A 7.5m ladder set up at 4 in 1 (angle of 76 degrees) will give a height to top rung from ground of 7.277m when set up. (sine 76 degrees x 7.5m = 7.277m)
I am 1850mm tall (6ft 1) and will be stood 1250mm (5 rungs) or so down the ladder so my shoulder height will be at approx 7.50m level.
The lady in the picture is about 1.7m tall (5ft 7) and am guesstimating its about 4 x her height ie. say 7m to eaves level (which is slightly lower than 7.5m I previously said)
With the top rung set at approx. 6.90m (so that my 600mm deep ladder stay is below eaves level) my shoulders should be at 7.2m, therefore I think my ladder should do the job ok all things being considered. Thats the theory anyway.
Still makes it a tricky job though, whatever the height!
A 7.5m ladder set up at 4 in 1 (angle of 76 degrees) will give a height to top rung from ground of 7.277m when set up. (sine 76 degrees x 7.5m = 7.277m)
I am 1850mm tall (6ft 1) and will be stood 1250mm (5 rungs) or so down the ladder so my shoulder height will be at approx 7.50m level.
The lady in the picture is about 1.7m tall (5ft 7) and am guesstimating its about 4 x her height ie. say 7m to eaves level (which is slightly lower than 7.5m I previously said)
With the top rung set at approx. 6.90m (so that my 600mm deep ladder stay is below eaves level) my shoulders should be at 7.2m, therefore I think my ladder should do the job ok all things being considered. Thats the theory anyway.
Still makes it a tricky job though, whatever the height!
I
ivanbigtoe
no worries maths is not my strong point :Image4: but I think your maths is out ,you will lose more than 223 mm my guess is about 1m for ladder and 1 m for your leggs thats why I said 5.5 I will get me tape out tomorrow ... :Image13: how ever you do it be safe
Smurf
Well-known member
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I have just under a 10m tripple ladder (12 rung per ladder section) which has a reach fully extended of 7.2m . The question is would I do that job by ladder the answer would be no as for one my ladder would be to short and for another would be way to risky to do.
T
The Gutter Goblin
I think have the same ladder as you Smurf, although I don't understand the 10m bit!
As the property is (only) 7m high it is sufficient to my requirements.
I am not doing the job until the 2nd week of December so I'll let you know how I get on.
As the property is (only) 7m high it is sufficient to my requirements.
I am not doing the job until the 2nd week of December so I'll let you know how I get on.
Smurf
Well-known member
- Messages
- 20,533
This might help?
each 12 rung section is 3.26 m x 3 = 9.78 m but when set to full working height is only 7.20 m
That side of the building I would say the roofline height is at least 8 m so would need to use a 10m full working height ladder to be on the safe side. :Image13:
each 12 rung section is 3.26 m x 3 = 9.78 m but when set to full working height is only 7.20 m
That side of the building I would say the roofline height is at least 8 m so would need to use a 10m full working height ladder to be on the safe side. :Image13:
