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|colspan="2" |'''Slope (%)'''
|colspan="2" |'''Slope (%)'''
|<= 10 || <= 10 || < 5 (requires sloped underdrain), 5-20 (gravity drainage), > 20 lath grid is required || || || || See Table A.6-3 for Media specs (Below) || || || || || || || ||
|<= 10 || <= 10 || < 5 (requires sloped underdrain), 5-20 (gravity drainage), > 20 lath grid is required || || || || See Table 2 for Media specs (Below) || || || || || || || ||
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|colspan="2" |'''Green roof assembly Weight(kg/m2)''' || 80 || || 290-967.7 (Intensive), 129.1-169.4 (Extensive) || || || || || || || || || || || ||
|colspan="2" |'''Green roof assembly Weight(kg/m2)''' || 80 || || 290-967.7 (Intensive), 129.1-169.4 (Extensive) || || || || || || || || || || || ||
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{| class="wikitable"
{| class="wikitable"
!colspan="3" style="background:cyan; color:black"| Table 1: Recommended green roof growing medium parameter ranges|
!colspan="3" style="background:cyan; color:black"| Table 1: Recommended green roof growing medium parameter ranges
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{| class="wikitable"
{| class="wikitable"
! !! !! !! !! Table 2: !! Example green roof media specifications !! !! !!
!colspan="2" style="background:cyan; color:black"| Table 2:Example green roof media specifications
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| Parameter || || || || Specification
| Parameter || Specification
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| Noncapillary pore space at field capacity || || || || 155 (vol.)
| Noncapillary pore space at field capacity || 155 (vol.)
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| Moisture content at field capacity || || || || 12% (vol.)
| Moisture content at field capacity || 12% (vol.)
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| Maximum media water retention || || || || 30% (vol)
| Maximum media water retention || 30% (vol)
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| Alkalinity, CaCo3 equivalents || || || || 2.50%
| Alkalinity, CaCo3 equivalents || 2.50%
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| Total organic matter by wet combustion || || || || 3-15% (dry wt.)
| Total organic matter by wet combustion || 3-15% (dry wt.)
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| pH || || || || 6.5-8.0
| pH || 6.5-8.0
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| Soluble Salts || || || || 6 mmhos/cm
| Soluble Salts || 6 mmhos/cm
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| Cation exchange capacity || || || || 10 meq/100g
| Cation exchange capacity || 10 meq/100g
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| Saturated hydraulic conductivity for single media assemblles || || || || 0.05 in/min
| Saturated hydraulic conductivity for single media assemblles || 0.05 in/min
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| Clay fraction (2 micron) || || || || 0
| Clay fraction (2 micron) || 0
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| Pct. Passing US#200 sieve (i.e., silt fraction) || || || || 5%
| Pct. Passing US#200 sieve (i.e., silt fraction) || 5%
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| Pct. Passing US#60 sieve || || || || 10%
| Pct. Passing US#60 sieve || 10%
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| Pct. Passing US#18 sieve || || || || 5%-50%
| Pct. Passing US#18 sieve || 5%-50%
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| Pct. Passing 1/8 inch sieve || || || || 20%-70%
| Pct. Passing 1/8 inch sieve || 20%-70%
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| Pct. Passing 3/8 inch sieve || || || || 75%-100%
| Pct. Passing 3/8 inch sieve || 75%-100%
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