| Author |
Grading around a house
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| guruocont 2007-05-25, 9:25 am |
| Hi,
For grading around a building according to BOCA 1996 according to my
reading the slope needs to be 1 inch per foot for a minimum of 8 feet.
This sounds pretty aggressive. I was wondering whether more recent
codes have modified this requirement for a house with a basement. I am
researching this question a house in NJ.
Regards..
G
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| marson 2007-05-25, 9:25 am |
| On May 25, 4:56 am, guruocont <guruc...@gmail.com> wrote:
> Hi,
>
> For grading around a building according to BOCA 1996 according to my
> reading the slope needs to be 1 inch per foot for a minimum of 8 feet.
> This sounds pretty aggressive. I was wondering whether more recent
> codes have modified this requirement for a house with a basement. I am
> researching this question a house in NJ.
>
> Regards..
> G
I believe it is now 6" in the first ten feet.
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| Bob Morrison 2007-05-25, 1:25 pm |
| In a previous post guruocont wrote...
> For grading around a building according to BOCA 1996 according to my
> reading the slope needs to be 1 inch per foot for a minimum of 8 feet.
> This sounds pretty aggressive. I was wondering whether more recent
> codes have modified this requirement for a house with a basement. I am
> researching this question a house in NJ.
>
1/8" per foot is only 1%. Pretty hard to control grades flatter than
that. 6 inches in 10 feet is 0.5%. Darn near impossible to control
without some serious surveying help.
--
Bob Morrison, PE, SE
R L Morrison Engineering Co
Structural & Civil Engineering
Poulsbo WA
bob at rlmorrisonengr dot com
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| RicodJour 2007-05-25, 1:25 pm |
| On May 25, 10:33 am, Bob Morrison <SpamFigh...@junk.com> wrote:
> In a previous post guruocont wrote...
>
>
> 1/8" per foot is only 1%. Pretty hard to control grades flatter than
> that. 6 inches in 10 feet is 0.5%. Darn near impossible to control
> without some serious surveying help.
What? You don't use Ron Popeil's Pocket Laser Grader? Press a button
and you have a level plane, uniform to within 0.001", within seconds!
R
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| Wayne Whitney 2007-05-25, 1:25 pm |
| On 2007-05-25, Bob Morrison <SpamFighter@junk.com> wrote:
>
> 1/8" per foot is only 1%.
I believe the OP means 1" / foot, or 8%, extending over an 8 foot wide
band around the house.
> 6 inches in 10 feet is 0.5%.
Umm, 6 inches in 10 feet is 5%.
Wayne
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|
| Around here it is 6" in the first 5' or 5" in the first 6'.
Never could remember which but never had an inspector
actually stretch out a level and check it. Common sense.
although it is usually in short supply, usually rules. g[]
"guruocont" <gurucont@gmail.com> wrote in message
news:1180087009.392253.130280@k79g2000hse.googlegroups.com...
> Hi,
>
> For grading around a building according to BOCA 1996
> according to my
> reading the slope needs to be 1 inch per foot for a
> minimum of 8 feet.
> This sounds pretty aggressive. I was wondering whether
> more recent
> codes have modified this requirement for a house with a
> basement. I am
> researching this question a house in NJ.
>
> Regards..
> G
>
| |
| Bob Morrison 2007-05-25, 1:25 pm |
| In a previous post Wayne Whitney wrote...
>
>
> Umm, 6 inches in 10 feet is 5%.
>
My bad! Guess the coffee hasn't kicked in yet today.
--
Bob Morrison, PE, SE
R L Morrison Engineering Co
Structural & Civil Engineering
Poulsbo WA
bob at rlmorrisonengr dot com
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| marson 2007-05-25, 8:25 pm |
| On May 25, 9:33 am, Bob Morrison <SpamFigh...@junk.com> wrote:
> In a previous post guruocont wrote...
>
>
> 1/8" per foot is only 1%. Pretty hard to control grades flatter than
> that. 6 inches in 10 feet is 0.5%. Darn near impossible to control
> without some serious surveying help.
>
> --
> Bob Morrison, PE, SE
> R L Morrison Engineering Co
> Structural & Civil Engineering
> Poulsbo WA
> bob at rlmorrisonengr dot com
How about a level and a tape measure? 3 is right there between 2 and
4! 
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|
| "guruocont" <gurucont@gmail.com> wrote in message
news:1180087009.392253.130280@k79g2000hse.googlegroups.com...
> Hi,
>
> For grading around a building according to BOCA 1996 according to my
> reading the slope needs to be 1 inch per foot for a minimum of 8 feet.
> This sounds pretty aggressive. I was wondering whether more recent
> codes have modified this requirement for a house with a basement. I am
> researching this question a house in NJ.
>
> Regards..
> G
>
You're quoting a grade that's equivalent to a 1 on 12 pitch roof. Otherwise
known due to that pitch as a flat roof.
I would be very aggressive, at least to the drip line. Then do the flat
roof thing.
Dave
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| marson 2007-05-26, 9:25 am |
| On May 25, 10:59 pm, "Dave" <spamyours...@virus.net> wrote:
> "guruocont" <guruc...@gmail.com> wrote in message
>
> news:1180087009.392253.130280@k79g2000hse.googlegroups.com...
>
>
>
>
> You're quoting a grade that's equivalent to a 1 on 12 pitch roof. Otherwise
> known due to that pitch as a flat roof.
>
> I would be very aggressive, at least to the drip line. Then do the flat
> roof thing.
> Dave
The question is what does code require. Code is 6" in 10 feet. A
standard slope for drainage is often quoted as 1/4" per foot-- 6" in
10 feet exceeds that. Steeper slopes might be nice, but can create
their own difficulties on the uphill side.
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| "marson" <briankontio@gmail.com> wrote in message
news:1180185045.283258.31860@u30g2000hsc.googlegroups.com...
> On May 25, 10:59 pm, "Dave" <spamyours...@virus.net> wrote:
>
> The question is what does code require. Code is 6" in 10 feet. A
> standard slope for drainage is often quoted as 1/4" per foot-- 6" in
> 10 feet exceeds that. Steeper slopes might be nice, but can create
> their own difficulties on the uphill side.
>
And, I said what I would do. Not what any code recommends. Code is a
minimum requirement. I said from the house slab/skirt to the dripline
regarding a steeper slope. Not the entire length of grade as you insinuated
that I stated.
A little research into soil grading and moisture retention shows the
dripline to the house is most critical. The goal should be maintaining a
consistent moisture content. The more soil, the less likely there will be
drastic change in moisture content.
Dave
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| marson 2007-05-26, 9:25 am |
| On May 26, 8:44 am, "Dave" <spamyours...@virus.net> wrote:
> "marson" <briankon...@gmail.com> wrote in message
>
> news:1180185045.283258.31860@u30g2000hsc.googlegroups.com...
>
>
>
>
>
>
>
>
>
>
>
> And, I said what I would do. Not what any code recommends. Code is a
> minimum requirement. I said from the house slab/skirt to the dripline
> regarding a steeper slope. Not the entire length of grade as you insinuated
> that I stated.
>
> A little research into soil grading and moisture retention shows the
> dripline to the house is most critical. The goal should be maintaining a
> consistent moisture content. The more soil, the less likely there will be
> drastic change in moisture content.
> Dave
If was just answering the question posed by the OP.
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