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Ron Beard CCS
Senior Member
Username: rm_beard_ccs

Post Number: 282
Registered: 10-2002
Posted on Friday, October 17, 2008 - 02:16 pm:   Edit PostDelete PostPrint Post

Why is proper grading around a foundation wall always referred to as "positive" grading? Proper grading dictates that the grade slope down away from the wall which is negative.

[I know the answer is dependent on where your starting point is, but if one reads the wording of most uses of the term it is written backasswards.]
(Unregistered Guest)
Unregistered guest
Posted on Friday, October 17, 2008 - 02:21 pm:   Edit PostDelete PostPrint Post

Because regardless of where you are standing (your starting point), when you are speaking of an object in the way of the grading you always refer to the grading from the point of view of grading against/towards it.

That's the default, unless you specifically state otherwise - and doing so is unconventional.

Archived mentally from my surveying class in university, 1970.
D. Marshall Fryer, CSI, Assoc. AIA
Senior Member
Username: dmfryer

Post Number: 68
Registered: 09-2003
Posted on Friday, October 17, 2008 - 02:31 pm:   Edit PostDelete PostPrint Post

Because you can be positive the contractor will do it wrong?
Wayne Yancey
Senior Member
Username: wayne_yancey

Post Number: 125
Registered: 01-2008
Posted on Friday, October 17, 2008 - 02:35 pm:   Edit PostDelete PostPrint Post

Positive slope to drain away from the foundation.

Negative would be a positive slope draining back to the foundation, or bassackwards.

You want the shit to positively, absolutely slope away from the foundation.
Philip R. Carpenter AIA
Senior Member
Username: philip_carpenter

Post Number: 28
Registered: 08-2008
Posted on Friday, October 17, 2008 - 08:05 pm:   Edit PostDelete PostPrint Post

Yes, as my visiting engineer mentioned to us acolytes in school:
there are 3 things you need to know about plumbing:

1) #?!@ flows downhill
2) payday is on friday
and
3) the boss is an #@!-hole
John Regener, AIA, CCS, CCCA, CSI, SCIP
Senior Member
Username: john_regener

Post Number: 418
Registered: 04-2002
Posted on Sunday, October 19, 2008 - 04:29 pm:   Edit PostDelete PostPrint Post

You forgot, "Never lick your fingers."
Don Harris CSI, CCS, CCCA, AIA
Senior Member
Username: don_harris

Post Number: 211
Registered: 03-2003
Posted on Monday, October 20, 2008 - 09:16 am:   Edit PostDelete PostPrint Post

Why do we drive on parkways and park on driveways?
Anonymous
 
Posted on Monday, October 20, 2008 - 09:25 am:   Edit PostDelete PostPrint Post

That's a Gallagher joke.

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