Welcome to Plaza Concepts! We specialize in durable, lightweight, recreational surfaces for roofs and plazas. With over 35 years experience in the Division 7 commercial roofing and waterproofing industry, we understand what works, and what at times has not. Efflorescence, plasticizer migration, shattered pavers, cracked pedestals, shrinkage, odor and carbon release are among the common problems you may have seen. We've got solutions.