This may not look like roofing material, but it is. The plants will be growing on the roof of the new Springfield-Greene County 911 Building.
The system uses trays and low-maintenance plants called sedum.
It takes a lot of plants to cover more than 14,000 square feet, but a federal grant is helping pay for it.
Installers say the green plants make the roof green in another way, too.
"It absorbs a lot of the thermal energy, helps reduce the cost of the building," says Nick Staats of Kirberg Company. "It gets the stormwater drain-off, it helps reduce that and it protects the roof system because you're not having the u-v light going over it."
After the initial watering, crews say the plants should take care of themselves.