3/22/2012 1:27 PM
Spring has officially sprung and we are focusing our attention on green roofs! Not only are
green roofs abundant in benefits, they are also incredibly enjoyable this time of year. Through
our subsidiary brand, rooflite®, we are able to collaborate on some of the coolest green roof
projects in the country. One of the most well-known projects we were a part of is the Target
Center’s green roof in Minneapolis, Minnesota. The Target Center’s green roof is the fifth
largest extensive green roof in the U.S. and the largest in Minnesota. It is also the first green
roof installed on an arena in North America. Nearly 1 million gallons of storm water will be
captured annually by the 2.5 acre green roof to prevent drainage into the Mississippi River. In
addition to storm water drainage prevention, the roof will also help in mitigating the heat island
effect in downtown Minneapolis. The green roof was part of an overall project by the City to
replace 29 conventional roofs on five levels of the Target Center.
rooflite® is the leading purveyor of green roof growing media, which is an engineered soil that
both mimics and improves on the properties of natural soil. Although native soil works perfectly
in its natural environment, it cannot be used on green roofs due to its excessive weights, its
inability to retain sufficient amounts of moisture, as well as its inability to drain excessive
amounts of moisture properly. rooflite®‘s green roof media products are lightweight to minimize
the roof load, heavy enough not to get dislocated by wind or flowing water and stable enough
to give plants sufficient hold. Additionally, rooflite® has been created in three formulas,
rooflite® extensive, rooflite® semi-intensive, and rooflite® intensive, in order to meet every
green roof need. All rooflite® products work collaboratively with any corresponding green roof
system complying with FLL and ASTM standards.
We expect green roofs and rooftop gardens to continue to play an important role in
“greenifying” cities and utilizing existing resources for higher purposes. We are excited to
share more green roof and rooftop garden projects with you in the future!
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