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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Sheet Membrane

Single Ply Sheet membranes provide the flexibility to FA, MA, or loose lay to meet the needs of a project.


Client Testimonials

"I think it's a incredible accomplishment for us all to have 2 acres of copper 55, copper FS, Bitumen, PVC and slate roofing systems working in conjunction with hundreds of details on some complicated skylights, multiple penetrations and several penthouses without a single leak or problem that I am aware of as I sit here today. This was all accomplished above some incredibly sensitive areas and all without adversely disrupting the daily operations of the (Massachusetts) State House."

James Sanderson, J.K. Scanlan Company