Experience...the Specified Materials advantage

George Arnold, President of Specified Materials, has received the Green Roof Professional (GRP) accreditation.

The Green Roof Professional (GRP) certification system was developed by Green Roofs for Healthy Cities, a not-for-profit industry association working to promote and develop the market for the green roofs throughout North America. Green Roofs for Healthy Cities has been committed to developing a professional accreditation program to legitimize green roof designers and provide education to fill knowledge gaps and…

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