County of Albemarle Greenroof County of Albemarle Greenroof Mark Warner, Governor; Tim Kaine, Lt...
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Transcript of County of Albemarle Greenroof County of Albemarle Greenroof Mark Warner, Governor; Tim Kaine, Lt...
County of Albemarle Greenroof
County of Albemarle Greenroof
County of Albemarle
Greenroof
Mark Warner, Governor; Tim Kaine, Lt Governor
County of Albemarle Greenroof
County of Albemarle Greenroof
County of Albemarle
Greenroof
Mark Warner, Governor; Tim Kaine, Lt Governor
County of Albemarle Greenroof
County of Albemarle Greenroof
Frequently asked questions.
Load Issues and Engineering
Leaks!!!!????
How Much?
Are you for real?
County of Albemarle Greenroof
County of Albemarle Greenroof
Above April 5, 2005 satellite photo of
Chesapeake Bay watershed courtesy NASA,
MODIS Rapid Response at GSFC
County of Albemarle Greenroof
County of Albemarle Greenroof
Random Title
County of Albemarle Greenroof
County of Albemarle Greenroof
How do we make roofs green?
County of Albemarle Greenroof
County of Albemarle Greenroof
Random Title
?
County of Albemarle Greenroof
County of Albemarle
Greenroof Plan
County of Albemarle Greenroof County of Albemarle Green Roof Process
County of Albemarle Greenroof County of Albemarle Green Roof Process
County of Albemarle Greenroof County of Albemarle Green Roof Process
County of Albemarle Greenroof County of Albemarle Green Roof Process
County of Albemarle Greenroof County of Albemarle Green Roof Process
County of Albemarle Greenroof County of Albemarle Green Roof Process
County of Albemarle Greenroof County of Albemarle Green Roof Process
County of Albemarle Greenroof County of Albemarle Green Roof Process
County of Albemarle Greenroof County of Albemarle Green Roof Process
County of Albemarle Greenroof County of Albemarle Green Roof Process
County of Albemarle Greenroof County of Albemarle Green Roof Process
County of Albemarle Greenroof County of Albemarle Green Roof Process
County of Albemarle Greenroof County of Albemarle Green Roof Process
County of Albemarle Greenroof County of Albemarle Green Roof Process
County of Albemarle Greenroof County of Albemarle Green Roof Process
County of Albemarle Greenroof County of Albemarle Green Roof Process
County of Albemarle Greenroof County of Albemarle Green Roof Process
County of Albemarle Greenroof
County of Albemarle
Greenroof Plan
Greenroof Plan
9,000 sq. ft.
County of Albemarle Greenroof County of Albemarle Green Roof Process
County of Albemarle Greenroof County of Albemarle Green Roof Process
County of Albemarle Greenroof County of Albemarle Green Roof Process
County of Albemarle Greenroof
County of Albemarle Greenroof
Random Title
What do green roofs do?
County of Albemarle Greenroof
County of Albemarle Greenroof
Random Title
County of Albemarle Greenroof
County of Albemarle Greenroof
Random Title
County of Albemarle Greenroof
County of Albemarle Greenroof
Random Title
your “Moment of Zen”
County of Albemarle Greenroof
County of Albemarle Greenroof
Random Title
WORKHORSE?
County of Albemarle Greenroof
County of Albemarle Greenroof
County of Albemarle Greenroof
County of Albemarle Greenroof
Greening Roofs
Why should we?
What Greenroofs Improve
Where Greenroofs can be used
How they are constructed
County of Albemarle Greenroof
County of Albemarle Greenroof
How do we make roofs green?
What are the costs?
What is saved?
Who can implement a greenroof?
The State of Green in the Old Dominion
County of Albemarle Greenroof
County of Albemarle Greenroof
How do we make roofs green?
Greenroof Education
Identify and Quantify Possibilities
Understand Costs
Advocate
Find Funding
County of Albemarle Greenroof
County of Albemarle Greenroof
How do we make roofs green?
Greenroof Education
Identify and Quantify Possibilities
Understand Costs
Advocate
Find Funding
County of Albemarle Greenroof
County of Albemarle Greenroof
How do we make roofs green?
Greenroof Education
Identify and Quantify Possibilities
Understand Costs
Advocate
Find Funding
County of Albemarle Greenroof
County of Albemarle Greenroof
How do we make roofs green?
Greenroof Education
Identify and Quantify Possibilities
Understand Costs
Advocate
Find Funding
County of Albemarle Greenroof
County of Albemarle Greenroof
How do we make roofs green?
Greenroof Education
Identify and Quantify Possibilities
Understand Costs
Advocate
Find Funding
The Energy Policy Act of 2005
• $3.7 billion for activities dedicated to energy efficiency and conservation, including establishment of a building performance initiative, authorization of $150 million in competitive grants for energy efficiency initiatives, including green roofs, and more.
County of Albemarle Greenroof
County of Albemarle Greenroof
How do we make roofs green?
Greenroof Education
Identify and Quantify Possibilities
Understand Costs
Advocate
Find Funding
The County’s funding came from the EPA through the Virginia Department of Conservation and Recreation. The Commonwealth received $400,000 in 2004.
County of Albemarle Greenroof
County of Albemarle Greenroof
Think outside the box (and above the rafters) in your local community.
County of Albemarle Greenroof
What greenroofs improve.
The Chesapeake Bay
County of Albemarle Greenroof
What greenroofs improve.
The Chesapeake Bay
Sediment can smother benthic (bottom-dwelling) plants and animals, such as oysters and clams. Suspended sediment clouds the water, preventing light from penetrating to the leaves and stems of underwater grasses, or submerged aquatic vegetation (SAV).
High concentrations of toxic materials also may be present in sediment, which further contaminate waterways. Sediment carries excess nutrients, particularly phosphorus, into Bay waters, compromising water quality. Accumulations of sediment can clog waterways and ports, making traffic difficult or hazardous, and requiring dredging.
County of Albemarle Greenroof
What greenroofs improve.
The Chesapeake Bay
Sediment can smother benthic (bottom-dwelling) plants and animals, such as oysters and clams. Suspended sediment clouds the water, preventing light from penetrating to the leaves and stems of underwater grasses, or submerged aquatic vegetation (SAV).
High concentrations of toxic materials also may be present in sediment, which further contaminate waterways. Sediment carries excess nutrients, particularly phosphorus, into Bay waters, compromising water quality. Accumulations of sediment can clog waterways and ports, making traffic difficult or hazardous, and requiring dredging.
County of Albemarle Greenroof
What greenroofs improve.
Air Quality
County of Albemarle Greenroof
What greenroofs improve.
Energy Demand
County of Albemarle Greenroof
What greenroofs improve.
Energy Demand
County of Albemarle Greenroof
Why should we construct greenroofs?
Just as trees and other plantlife clean air by making use of airborne carbon, greenroofs do the same thing…
recycling harsh roof microclimates into living, breathing places.
County of Albemarle Greenroof
Energy Consumption and Dependence
County of Albemarle Greenroof
What greenroofs improve.
Energy Waste
County of Albemarle Greenroof
Our Energy comes with Costs.
Why should we construct greenroofs?
County of Albemarle Greenroof
We create real and long-term
When we increase efficiency….
County of Albemarle Greenroof
ADAPTABILITY, VALUE, ECOLOGY and STABILITY
Greenroofs allow buildings to require and demand less engergy. They make buildings less of an “energy hog”
County of Albemarle Greenroof
COUNTY DATA COLLECTIONOnce the roof is established, the portion with the green roof system will be monitored and measured during an extended period and compared to a similar, non-greened portion of the roof. Mike Stumbaugh, Director of General Services will use digital thermometers attached to micro computers (called HOBOs) to measure and record the changes in temperature from inside and out. Coefficients of energy transfer will be used to determine what the roof is doing.
Energy hog?
County of Albemarle Greenroof
COUNTY DATA COLLECTIONThis will allow us to understand exactly how much energy is conserved.
County employees are certain to hear a little less rumbling of air handlers and chillers.
County residents should not expect their taxes to plummet as a result of our increased efficiency, but over the life of the roof, it will conserve energy that continues to be more costly.
Similar studies will look at water quantity and
quality after the roof is complete.
County of Albemarle Greenroof
What greenroofs improve.
Flashiness in streams and waterways.
County of Albemarle Greenroof
Every Piece of green infrastructure
Creates a measured improvement.
County of Albemarle Greenroof
What greenroofs improve.
Urban Heat Island Effect
County of Albemarle Greenroof
What greenroofs improve.
HEALTH ISSUES
Urban Heat Island Effect
County of Albemarle Greenroof
What greenroofs improve.
HEALTH ISSUES
Air
Quality
County of Albemarle Greenroof
What greenroofs improve.
HEALTH ISSUES
Heat and
Microclimate
County of Albemarle Greenroof
What greenroofs improve.
HEALTH ISSUES
Food
County of Albemarle Greenroof
What greenroofs improve.
HEALTH ISSUES
Food
Well being
County of Albemarle Greenroof
What greenroofs improve.
Habitat
County of Albemarle Greenroof
What greenroofs improve.
Habitat
County of Albemarle Greenroof Habitat
County of Albemarle Greenroof
County of Albemarle Greenroof
Water Quality
Plants and soil medium filter airborne pollutants. The Department of Energy is providing grant funding for greenroofs. Greenroofs filter phosphorous and nitrogen, among others from rainwater.
…and decrease the energy (and therefor, pollution) required to keep us comfortable.
Pennsylvania State University Center for Greenroof Research
www.://hortweb.cas.psu.edu/research/greenroofcenter/research.html
County of Albemarle Greenroof
County of Albemarle Greenroof
Water Quality
Phospherous and nitrogen are bi-products of current regulations on coal and other fossil fuel powered energy plants. In urban areas, these airborne nutrients do not have an opportunity to be cleaned through the natural cycle as they would in more natural areas.
Charlottesville
County of Albemarle Greenroof
County of Albemarle Greenroof
Water Quality
Plants and soil medium work to neutralize acid rain.
Pennsylvania State University Center for Greenroof Research
www.://hortweb.cas.psu.edu/research/greenroofcenter/research.html
County of Albemarle Greenroof
County of Albemarle Greenroof
Water Quality
Greenroofs have the ability to remove and fitler phospherous, nitrogen, and potentially mercury. These are all bi-products of the department of energy’s current regulations on coal and other fossil fuel powered energy plants.
County of Albemarle Greenroof
County of Albemarle Greenroof
Water Quality
Greenroofs have the ability to remove and fitler phospherous, nitrogen, and potentially mercury. These are all bi-products of the department of energy’s current regulations on coal and other fossil fuel powered energy plants.
County of Albemarle Greenroof
County of Albemarle Greenroof
Water Quantity
On average, across the United States, green roofs are shown to retain 50-70% of water from rainfall events. Peak runoff flows are reduced up to 85%. These peak runoff flows are responsible for the most severe erosion along our rivers and streams. After full saturarion, a greenroof will release rain in excess of one inch, on average. Shenck’s Branch
County of Albemarle Greenroof
County of Albemarle Greenroof
Shenck’s Branch
County of Albemarle Greenroof
County of Albemarle Greenroof
Shenck’s Branch
County of Albemarle Greenroof
County of Albemarle Greenroof
County Office Building Roof Projected Performance
County of Albemarle Greenroof
County of Albemarle Greenroof
Where can greenroofs be used?
airport
restaurant
County of Albemarle Greenroof
County of Albemarle Greenroof
Where can greenroofs be used?
Pennsylvania State University Center for Greenroof Research
www.://hortweb.cas.psu.edu/research/greenroofcenter/research.html
airport
restaurant
Legistlative Building,
Raleigh, NC
County of Albemarle Greenroof
County of Albemarle Greenroof
Where can greenroofs be used?
County of Albemarle Greenroof
County of Albemarle Greenroof
New Target Store, Chicago, IL
County of Albemarle Greenroof
Residential Application
County of Albemarle Greenroof
Residential Applicationdemo
County of Albemarle Greenroof
Residential Applicationroofboards
County of Albemarle Greenroof
Residential Applicationwaterproofing
County of Albemarle Greenroof
Residential ApplicationDrainage Layer
County of Albemarle Greenroof
Residential ApplicationSoil Medium
County of Albemarle Greenroof
Residential ApplicationSoil Medium
County of Albemarle Greenroof
Residential ApplicationPlanting
County of Albemarle Greenroof
Residential ApplicationFull Establishment After Two Years +/-
County of Albemarle Greenroof
County of Albemarle Greenroof
Who can implement a greenroof?
County of Albemarle Greenroof
Local Government
County of Albemarle Greenroof
County of Albemarle Greenroof
Costs
Costs for greenroof systems begin under $10
per square foot...
An extensive greenroff, such as the one growing on the County
Office Building is the least expensive. Extensive greenroofs are
not meant to be an active space. They are limited access and are
to serve no greater function than those previously mentioned.
An Intensive greenroof anticipates uses for relaxation and
reflection and involve larger plants, deeper soil medium, and
frequent use.
Generally Extensive roofs range between $5-$15 per square foot
for system alone. As with any product that has more to offer,
intensive green roofs cost out higher, but are still cost-effective.
County of Albemarle Greenroof
State of Green in the Old Dominion
Arlington County has a two-year old green roof located near Courthouse Metro.
The City of Alexandria is preparing to install the largest greenroof in the Commonwealth:
10,756 square feet.
County of Albemarle Greenroof
County of Albemarle Greenroof
Other smaller projects have been completed or are in the works at:
- James Madison University
- Fairfax County
- Arlington County
- Alliance for the Bay, Richmond Area
- Downtown Greens Community Garden in Fredericksburg
County of Albemarle Greenroof
County of Albemarle Greenroof
THOUGHTS
and
County of Albemarle Greenroof
County of Albemarle Greenroof
QUESTIONS?