Changes

</ol>

</ol>

<h4>Irrigation</h4>

<h4>Irrigation</h4>

Regular irrigation has been shown to substantially reduce the stormwater capture benefit of an extensive green roof[http://ascelibrary.org/doi/abs/10.1061/(ASCE)HE.1943-5584.0001534]. However, due to their limited water retention capacity many green roofs are coupled with a cistern to capture the excess water. It then becomes desirable to use as much harvested water to regain the cistern capacity,  Green roofs can be irrigated to saturation daily throughout the growing season without damaging the vegetation.

<p>Regular irrigation has been shown to substantially reduce the stormwater capture benefit of an extensive green roof[http://ascelibrary.org/doi/abs/10.1061/(ASCE)HE.1943-5584.0001534]. However, due to their limited water retention capacity many green roofs are coupled with a cistern to capture the excess water. It then becomes desirable to use as much harvested water to regain the cistern capacity,  Green roofs can be irrigated to saturation daily throughout the growing season without damaging the vegetation. </p>

 

<table class="table table-bordered table-hover">

<table class="table table-bordered table-hover">

<tr class = "success"><td>Irrigation technology</td><td>Benefits</td><td>Disadvantages</td></tr>

<th class = "success"><td>Irrigation technology</td><td>Benefits</td><td>Disadvantages</td></th>

<tr><td>Spray</td><td>Maximizes evaporation</td><td>Requires higher water quality standard</td></tr>

<tr><td>Spray</td><td>Maximizes evaporation</td><td>Requires higher water quality standard</td></tr>

<tr><td>Drip</td><td>Harvested rainwater is readily used without further treatment</td><td>Planting medium does not 'wick' water sideways readily, so can lead to localized dry areas</td></tr>

<tr><td>Drip</td><td>Harvested rainwater is readily used without further treatment</td><td>Planting medium does not 'wick' water sideways readily, so can lead to localized dry areas</td></tr>

</table>

</table>

Maximizing evaporation with spray irrigation is the faster way to empty a stormwater cistern, and provides some cooling benefit for the building and it's surroundings.  

<p> Maximizing evaporation with spray irrigation is the faster way to empty a stormwater cistern, and provides some cooling benefit for the building and it's surroundings.</p>

<h4>Planting</h4>

<h4>Planting</h4>