Green Roof Engineering

Green Roof Engineering (HM237E)

Location: Washington, DC 20002
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Country: United States of America
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N 38° 53.307', W 77° 0.78'

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Inscription
Once the stone façade and roof are restored, the U.S. Botanic Garden (USBG) will install a new green roof on top of the stone part of the Conservatory. This plant-covered roof will reduce the amount of heat absorbed by the building and decrease the building's contribution to the higher average temperatures of D.C. compared to surrounding rural areas (this phenomenon is known as urban heat island effect). The green roof will also absorb rainwater, reducing runoff.

Green roof systems are constantly evolving as designers seek to balance efficient drainage with adequate water retention, while protecting a roof's waterproofing and minimizing its overall weight. Because they are heavier than traditional roofs, a green roof's design is limited by the existing building's structural design. The USBG's green roof will be less than 27 pounds per square foot.

As you can see here, the new green roof has been engineered to support a diversity of plants while insulating the building and keeping the roof watertight. Once it is installed, USBG gardeners will maintain this vibrant rooftop garden.
Details
HM NumberHM237E
Tags
Placed ByUnited States Botanic Garden
Marker ConditionNo reports yet
Date Added Sunday, November 26th, 2017 at 7:03am PST -08:00
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Locationbig map
UTM (WGS84 Datum)18S E 325409 N 4306323
Decimal Degrees38.88845000, -77.01300000
Degrees and Decimal MinutesN 38° 53.307', W 77° 0.78'
Degrees, Minutes and Seconds38° 53' 18.42" N, 77° 0' 46.8" W
Driving DirectionsGoogle Maps
Area Code(s)202
Closest Postal AddressAt or near 100 Maryland Ave SW, Washington DC 20002, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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