About
Commercial Services
Roofing Services
Re-Cover
Replacement
Restoration
Repairs
Infrared Thermography
Maintenance
Commercial Systems
Roofing Systems
TPO
Roof Coating
PVC
Modified Bitumen
Metal
Built-Up Roof
Portfolio
Resources
Roofing Resources
Roof Warranties
Blog
Glossary
Frequently Asked Questions
Free Inspection
Ply
A layer of
felt
or ply sheet in a built-up
membrane
roof or
waterproofing system
.
Related Articles:
The 4 Best Options for Repairing or Upgrading EPDM Roofs - Part I
4 Best Options for EPDM Roofs – Part II
Best Commercial Roofing Atlanta
PVC
Modified Bitumen
« Back to Glossary