Links & Resources

PWD Stormwater Management Practice Guidance

The Philadelphia Water Department has provided direction for designers who plan on investing in a Green Roof option for their site. Click the button below to access the complete Stormwater Management Practice Guidance Manual.

PWD Green Roofs

A green roof is a fully or partially vegetated roof. The system is composed of multiple layers, including waterproofing, a drainage layer, a planting media, and special plants. A green roof is effective in reducing the volume and velocity of stormwater runoff from roofs by temporarily storing stormwater, slowing excess stormwater release into the combined sewer system, and promoting evapotranspiration. Follow the link to learn more.

Philadelphia Green Roof Tax Credit

The Green Roof Tax Credit is a credit against the Business Income and Receipts Tax (BIRT). A business is provided the credit to reward the construction of a roof that supports living vegetation. Click below for additional information.