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Talk:Green Roofs Design Guide (view source)

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'''This page is an archive, please do not review, use or cite the contents below'''
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!colspan="2" style="background:white; color:black"| LID Practice
 
!colspan="2" style="background:white; color:black"| LID Practice
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!colspan="12" style="background: brown; color: white"|United States  
 
!colspan="12" style="background: brown; color: white"|United States  
 
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!colspan="2" style="backgroung=green; color:white"|Green Roof|| CVC+TRCA (Factsheets-2010)<ref> http://www.creditvalleyca.ca/wp-content/uploads/2012/02/lid-swm-guide-apdxa-bioretention.pdf</ref>||LID-SWM Guide 2010<ref> http://www.creditvalleyca.ca/wp-content/uploads/2014/04/LID-SWM-Guide-v1.0_2010_1_no-appendices.pdf</ref>|| LID-Design Guide Edmonton- 2014 || New York State SWM Design Manual-2015||Massachusets SW BMP-2013 || District of Columbia-SWM Guidebook-2010 ||San Diego LID Handbook-2014||Alabama LID Handbook-2013|| W. Virginia-SWM design guidance manual-2012||Rhode Island-SW design & Installation Standards Manual-2012|| Minnesota SW Manual-2016  || Tennessee-LID Development-SWM 2016 || Texas-LID Technical Guidance Manual-2013 || Oregon SWM Manual-2014||Oregon State Univ. Fact Sheets-2011
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!colspan="2" style="backgroung=green; color:white"|Green Roof|| CVC+TRCA (Factsheets-2010)<ref>http://www.creditvalleyca.ca/wp-content/uploads/2012/02/lid-swm-guide-apdxa-green-roofs.pdf</ref>||LID-SWM Guide 2010<ref> http://www.creditvalleyca.ca/wp-content/uploads/2014/04/LID-SWM-Guide-v1.0_2010_1_no-appendices.pdf</ref>|| LID-Design Guide Edmonton- 2014 || New York State SWM Design Manual-2015||Massachusets SW BMP-2013 || District of Columbia-SWM Guidebook-2010 ||San Diego LID Handbook-2014||Alabama LID Handbook-2013|| W. Virginia-SWM design guidance manual-2012||Rhode Island-SW design & Installation Standards Manual-2012|| Minnesota SW Manual-2016  || Tennessee-LID Development-SWM 2016 || Texas-LID Technical Guidance Manual-2013 || Oregon SWM Manual-2014||Oregon State Univ. Fact Sheets-2011
 
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|colspan="2" |'''Slope (%)'''
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|colspan="2" |'''Slope(%)'''
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|<= 10 || <= 10 || < 5 (requires sloped underdrain),               5-20 (gravity drainage),                               > 20 lath grid is required ||  ||  ||  || See Table A.6-3 for Media specs (Below) ||  ||  ||  ||  ||  ||  ||  ||  
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|<= 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) ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  
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|colspan="2" |'''Green Roof Assembly Weight(kg/m2)''' || 80 ||  || 290-967.7 (Intensive), 129.1-169.4 (Extensive) ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  
 
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|colspan="2" |'''Growing medium depth (cm)''' || 4-15 || 4-15 ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  
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|colspan="2" |'''Growing Medium Depth (cm)''' || 4-15 || 4-15 ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  
 
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|colspan="2" style="text-align: right;|Intensive || > 15 || > 15 || 20-60 ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  
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|colspan="2" style="text-align: right;|'''Intensive''' || > 15 || > 15 || 20-60 ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  
 
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|colspan="2" style="text-align: right;|Extensive || <= 15 || <= 15 || 10-15 ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  
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|colspan="2" style="text-align: right;|'''Extensive''' || <= 15 || <= 15 || 10-15 ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  
 
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|colspan="2" |'''Fertilizer applications (nitrogen/m2)''' || < =  5.0 g  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  
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|colspan="2" |'''Fertilizer Applications (Nitrogen/m2)''' || < =  5.0 g  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  
 
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|colspan="2" |'''Porosity of the drainage Layer (%)''' || > = 25% || > = 25% ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  
 
|colspan="2" |'''Porosity of the drainage Layer (%)''' || > = 25% || > = 25% ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  
 
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|colspan="2" |'''Ratio of impervious area to treatment facility area, %''' ||  || 1:1 ||  ||  ||  || CDA:GR size +25% ||  ||  ||  || DA not limit, generally no runoff from surrounding area ||  ||  ||  ||  ||  
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|colspan="2" |'''Ratio of impervious area to treatment facility area (%)''' ||  || 1:1 ||  ||  ||  || CDA:GR size +25% ||  ||  ||  || DA not limit, generally no runoff from surrounding area ||  ||  ||  ||  ||  
 
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|colspan="2" |'''Plant density''' ||  ||  || Seeds >= 325/m2,                Cuttings>= 12 kg/100m2,    Plugs>= 11/m2 ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  
 
|colspan="2" |'''Plant density''' ||  ||  || Seeds >= 325/m2,                Cuttings>= 12 kg/100m2,    Plugs>= 11/m2 ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  
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|colspan="2" |'''Filter Media''' ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  
 
|colspan="2" |'''Filter Media''' ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  
 
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|colspan="2" style="text-align: right;|Organic ||  ||  ||  || 25% || < 5% || <20% ||  || < 15% || <20% || < 15% || See Table 1 for media parameter ranges || < 15% || < 20% || 25% || 20%
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|colspan="2" style="text-align: right;|'''Organic''' ||  ||  ||  || 25% || < 5% || <20% ||  || < 15% || <20% || < 15% || See Table 1 for media parameter ranges || < 15% || < 20% || 25% || 20%
 
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|colspan="2" style="text-align: right;|Light Weight in-organic ||  ||  || || 75% || 95-100 % || 80-90% || 100% || > 85% || 80-90% || 85-100 % ||  || 80-90 % || 80-90 % || 50% ||  
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|colspan="2" style="text-align: right;|'''Light Weight in-organic''' ||  ||  || || 75% || 95-100 % || 80-90% || 100% || > 85% || 80-90% || 85-100 % ||  || 80-90 % || 80-90 % || 50% ||  
 
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|colspan="2" style="text-align: right;|CEC ||  ||  ||  ||  ||  ||  || > 10 ||  ||  || > 10 ||  ||  || > 10 ||  ||  
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|colspan="2" style="text-align: right;|'''CEC''' ||  ||  ||  ||  ||  ||  || > 10 ||  ||  || > 10 ||  ||  || > 10 ||  ||  
 
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|colspan="2" style="text-align: right;|pH ||  ||  ||  ||  ||  ||  || 6.5-8 ||  ||  ||  || 6.5-7.8 ||  || 6.5-8 ||  ||  
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|colspan="2" style="text-align: right;|'''pH''' ||  ||  ||  ||  ||  ||  || 6.5-8 ||  ||  ||  || 6.5-7.8 ||  || 6.5-8 ||  ||  
 
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|colspan="2" style="text-align: right;|Sand ||  ||  ||  ||  ||  ||  ||  ||  ||  || S: 95%;  D:85-95% ||  ||  ||  ||  ||  
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|colspan="2" style="text-align: right;|'''Sand''' ||  ||  ||  ||  ||  ||  ||  ||  ||  || S: 95%;  D:85-95% ||  ||  ||  ||  ||  
 
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|colspan="2" style="text-align: right;|Silt ||  ||  ||  ||  ||  ||  ||  ||  ||  || S: <5%;  D: 5-15% ||  ||  ||  ||  ||  
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|colspan="2" style="text-align: right;|'''Silt''' ||  ||  ||  ||  ||  ||  ||  ||  ||  || S: <5%;  D: 5-15% ||  ||  ||  ||  ||  
 
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|colspan="2" style="text-align: right;|Clay ||  ||  ||  ||  ||  ||  ||  ||  ||  || 0% ||  ||  ||  ||  ||  
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|colspan="2" style="text-align: right;|'''Clay''' ||  ||  ||  ||  ||  ||  ||  ||  ||  || 0% ||  ||  ||  ||  ||  
 
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|colspan="2" style="text-align: right;|P-Content ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  || E: 2-10; I:2-15 ||  ||  ||  ||  
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|colspan="2" style="text-align: right;|'''P-Content''' ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  || E: 2-10; I:2-15 ||  ||  ||  ||  
 
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|colspan="2" style="text-align: right;|Topsoil ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  || 25% ||  
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|colspan="2" style="text-align: right;|'''Topsoil''' ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  || 25% ||  
 
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|colspan="2" style="text-align: right;|Porous Material ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  || 70%
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|colspan="2" style="text-align: right;|'''Porous Material''' ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  || 70%
 
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|colspan="2" style="text-align: right;|Digested fiber ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  || 10%
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|colspan="2" style="text-align: right;|'''Digested fiber''' ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  ||  || 10%
    
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!colspan="3" style="background:cyan; color:black"| Table 1: Recommended green roof growing medium parameter ranges| 
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!colspan="3" style="background:cyan; color:black"| Table 1: Recommended green roof growing medium parameter ranges  
    
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! !!  !!  !!  !! Table 2: !! Example green roof media specifications !!  !!  !!
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!colspan="2" style="background:cyan; color:black"| Table 2:Example green roof media specifications  
 
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| Parameter ||  ||  ||  || Specification
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| Parameter || Specification
 
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| Noncapillary pore space at field capacity ||  ||  ||  || 155  (vol.)
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| Noncapillary pore space at field capacity || 155  (vol.)
 
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| Moisture content at field capacity ||  ||  ||  || 12% (vol.)
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| Moisture content at field capacity || 12% (vol.)
 
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| Maximum media water retention ||  ||  ||  || 30% (vol)
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| Maximum media water retention || 30% (vol)
 
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| Alkalinity, CaCo3 equivalents ||  ||  ||  || 2.50%
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| Alkalinity, CaCo3 equivalents || 2.50%
 
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| Total organic matter by wet combustion ||  ||  ||  || 3-15% (dry wt.)
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| Total organic matter by wet combustion || 3-15% (dry wt.)
 
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| pH ||  ||  ||  || 6.5-8.0
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| pH || 6.5-8.0
 
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| Soluble Salts ||  ||  ||  || 6 mmhos/cm
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| Soluble Salts || 6 mmhos/cm
 
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| Cation exchange capacity ||  ||  ||  || 10 meq/100g
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| Cation exchange capacity || 10 meq/100g
 
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| Saturated hydraulic conductivity for single media assemblles ||  ||  ||  || 0.05 in/min
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| Saturated hydraulic conductivity for single media assemblles || 0.05 in/min
 
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| Clay fraction (2 micron) ||  ||  ||  || 0
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| Clay fraction (2 micron) || 0
 
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| Pct. Passing US#200 sieve (i.e., silt fraction) ||  ||  ||  || 5%
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| Pct. Passing US#200 sieve (i.e., silt fraction) || 5%
 
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| Pct. Passing US#60 sieve ||  ||  ||  || 10%
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| Pct. Passing US#60 sieve || 10%
 
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| Pct. Passing US#18 sieve ||  ||  ||  || 5%-50%
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| Pct. Passing US#18 sieve || 5%-50%
 
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| Pct. Passing 1/8 inch sieve ||  ||  ||  || 20%-70%
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| Pct. Passing 1/8 inch sieve || 20%-70%
 
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| Pct. Passing 3/8 inch sieve ||  ||  ||  || 75%-100%
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| Pct. Passing 3/8 inch sieve || 75%-100%
 
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Jenny Hill
8,255

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