Green RoofsGreen Roofs

Thomas MickensThomas Mickens

Trudyann BuckleyTrudyann Buckley

Victoria MordanVictoria Mordan

•The roofing membrane provides the important waterproofing layer in every green roof.

•The compound prevents plant roots from appearing beneath the waterproofing membrane.

•The soil absorbs and retains storm water in a controlled manner to make the plants healthier.

•The surface layer of plant life is made to meet certain requirements of individual applications.

Mickens

• When rain falls on forested and open land, water goes through its natural cycle.

• Approximately 40% of the storm water is almost immediately returned into the atmosphere through transpiration.

• A Green Roof build-up reduces the water run-off to 50-10%.

Mickens

Examples of Effective Examples of Effective UsageUsage

• Lincoln Park Zoo –ChicagoLincoln Park Zoo –Chicago

BuckleyBuckley

•City Hall –ChicagoCity Hall –Chicago

Examples of Effective Examples of Effective UsageUsage[continued][continued]

• Library –Kansas CityLibrary –Kansas City

BuckleyBuckley

• Asbury Woods Nature Center –Erie, Asbury Woods Nature Center –Erie, PAPA

Cons of Green RoofsCons of Green Roofs

• Heavy!Heavy!• Can be pricey.Can be pricey.• Planting on a sloped roof needs extra Planting on a sloped roof needs extra

erosion control, which is expensive.erosion control, which is expensive.• Maintenance is likely to increase Maintenance is likely to increase

compared to normal roofing.compared to normal roofing.

Buckley

Pros of Green RoofsPros of Green Roofs  

• Reduce and delay Storm Water Runoff.Reduce and delay Storm Water Runoff.• Improve air quality by reducing COImprove air quality by reducing CO22..• Reduce heat in urban areas.Reduce heat in urban areas.• Partially compensate for landscape lost Partially compensate for landscape lost

to development.to development.

Buckley

Materials Needed to Install a Green Roof

Note: Before green roof installation can begin, hire a licensed structural engineer or architect to determine if

any upgrades are needed.

-Irrigation and drainage systems

-Garden supplies (this includes soil)

-Plants

-Maintenance, transportation, and city permits

-Time

-Contractors

-Fertilizer

-Roof

-Insulation

Mordan

Mordan

Methods for installing a Green Roof

• Hire structural analysis consultants.

• Choose the site. • Obtain required permits from

the Department of Construction and Permits.

• Research green roofs designers and installation companies.

• Determine the type of Green Roof.

• Select Plants.• Work out irrigation system.

and finally…• Pay for it all.

Mordan

The EndThe End

Thank you for watching. Thank you for watching.

http://whereisguillaume.blogspot.com/http://www.temple.edu/env-stud/seniorsem/section3C.htm

http://www.creggancountrypark.com/Uploads/green%20roof.jpghttp://ecoroofsystems.com/grnRoof_files/c_grnRoof.html

http://en.wikipedia.org/wiki/Green_roof

http://www.glwi.uwm.edu/research/genomics/ecoli/greenroof/roofinstall.php

http://www.gorsethkernow.org.uk/images/news/tremough.jpg

http://www.roofsystemsconsultants.com/images/TypicalDetail.jpg

http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V23-4KRY8NX-1&_user=10&_coverDate=07%2F31%2F2007&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=0f30edb71617c4f49f395220779d9cd1

http://www.temple.edu/env-stud/seniorsem/section3C.htm

http://www1.eere.energy.gov/femp/pdfs/fta_green_roofs.pdf

Mordan and Buckley