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Posted: Wed Aug 31, 2011 7:48 pm
by dig_dug
Hi again,
I'm setting the slope for my paving job and have a question. In the attached jpeg Level A represents the finished level around the perimeter of the house. Level C is the lowpoint in the whole lot with Level B being intermediate between A and B. There is a fall from A to B to C so rain will fall off into lower level garden.
In the diagram should I have Pt 2 at the same level as Pt 1, or should I have a linear fall all the way from Pt 1 to Pt 3.
Cheers,
Brian.
Posted: Wed Aug 31, 2011 8:05 pm
by Pablo
Erm I'm scratching my head a bit is that drawing to scale and can you elaborate on what pt means and by linear do you mean level.
Posted: Wed Aug 31, 2011 8:20 pm
by dig_dug
It is to scale. Across the narrow width of the pathway is 1.2M. It's a drawing of my patio at the back of the house and the footpaths. The long narrow section is to the side of the house.
Pt = point as in position.
Linear means in a straight line (not a level line) so it would be a consistent fall all the way, as opposed to different falls along the length.
Posted: Wed Aug 31, 2011 8:37 pm
by ken
I think I get it!
Set the level from pt1 level b to pt3 level c.
Posted: Wed Aug 31, 2011 8:39 pm
by Pablo
Ok I understand I was thinking it was a driveway. Because the side passage is so narrow it doesn't matter if it doesn't fall at the same angle as the main body personally I'd Install the main body at the best height possible and as long as the water was getting out of the passage then I'd be happy.
Posted: Wed Aug 31, 2011 9:11 pm
by dig_dug
Ok thanks...just thought there might be an established way as this shape is so common, at least in my neck of the woods. There's no problem with sufficient fall either way. Just with one way there is a more severe fold across the width of the path at Pt 2.
At the risk of confusing things further the diagram below (not to scale) shows a side view at path level looking at the side of the house. The red line is Level A, the Blue is B and C. You can see the fold at Pt 2 in Method 2.
Posted: Wed Aug 31, 2011 9:15 pm
by ken
method 1 id go for