Certification & Affiliations

Greenwood Industries commitment to excellence manifests itself in many forms, including support of and active participation in numerous federal, local government, and industry-related organizations.

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Built-Up Roofing

Built Up roofing systems have been in use in the United States for over 100 years. Built-Up roofing systems use a highly reliable waterproof membrane fabricated with layers of bitumen, and alternating with plies of reinforcing felts. The redundant layers provide outstanding resistance to water and weather. Two applications exist for this system: Hot-Applied and Cold-Applied.


Client Testimonials

"If not for their hard work, conscientious effort, teamwork and proactive approach to our project it certainly wouldn’t have been as successful as I feel it is today."

James Sanderson, J.K. Scanlan Company