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Green roof
Success story
A Green Upgrade For The Empire State Building
PROJECT OVERVIEW
Our green roof system helped beautify New York’s Empire State Building, while saving energy and adding value.
$550m
energy-efficiency upgrade
38%
less energy used
Sights set on saving energy
Once the world’s tallest building, the Empire State Building soars 443m above Manhattan.
Xeroflor embarked on a USD$550 million ‘green’ retrofit in partnership with Clinton Climate Initiative, Rocky Mountain Institute, Johnson Controls and Jones Lang LaSalle. The goal was to reduce the iconic building’s energy use by 38%, and secure an EnergyStar rating and US Green Building Council LEED-EB Gold certification.
Taking green roofs to new heights
Our lightweight Xeroflor green roof system was installed on the 21st, 25th and 30th floors. As well as enhancing green space, it reduces air conditioning and storm-water runoff, and improves property value.
For the 25th floor roof, which gets little direct sunlight, we used a system that weighs just 20 kg/m2 when dry and 40 kg/m2 when saturated.
And for the inaccessible 30th floor roof, we used our XF301 pre-vegetated sedum mat with 19mm of XeroTerr®, medium, which is resilient and low-maintenance. All the heat and drought-tolerant plants in the mats were grown at local, independently owned farms.
PARTNER
Xero Flor America
LOCATION
New York, USA
APPLICATION
Green Roof Drain
Pre-vegetated Mat Systems
Vegetation Carrier
Energy saved, building beautified
The Empire State Building scored an EnergyStar rating of 80, placing it in the top 20% of energy efficient buildings in the United States.
Tenants can also now enjoy city views from the green rooftop patios – all part of the owner’s vision to create a healthy, productive workspace for top talent.
PRODUCTS USED ON THIS PROJECT
XF Plus
Our Xeroflor systems are component based, and you can buy XF Plus system additions to create custom green roof systems.
VIEW PRODUCT
XF Retain
Our water-retention products slow down and store rainwater run-off, without waterlogging the substrate or causing root rot.
VIEW PRODUCTAREAS OF APPLICATION
Green Roof Drain
An effective green roof drainage mat is critical for a successful installation, and brings environmental benefits.
Pre-vegetated Mat Systems
Stabilises green roofs – no need for hydromulch or wind netting, and you have flowers and foliage all year round.
Vegetation Carrier
Vegetation carriers support seedlings, stabilise the soil and minimise erosion, and you can harvest them in rolls.
REQUEST A PRODUCT SAMPLE
We'd be delighted to arrange the delivery of a product sample, to help with your project planning.
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