ZIP System® for Standing Seam Metal Roofs: What to Consider
Does ZIP System need underlayment beneath a metal roof? Explore Sheffield Metals’ recommendations on roof sheathing, installation, and fastener attachment.
Does ZIP System® roof sheathing need additional underlayment beneath a standing seam metal roof? Sheffield Metals recommends adding underlayment over ZIP System® as an extra layer of protection—not relying solely on the sheathing’s integrated water-resistive barrier.
In this Q&A Mondays, metal roofing expert Thad Barnette talks with Sheffield Metals Assistant Technical Director Dave Stubbs about ZIP System® and the considerations that matter for metal roofing contractors, builders, and homeowners.
Topics include:
- Why proper sheathing and tape installation matter.
- Why Sheffield recommends additional roofing underlayment.
- Sheathing thickness considerations for standing seam metal roofing.
- Fastener attachment and pull-out concerns with engineered OSB.
- What roofing contractors may inherit when another crew installs the sheathing.
This discussion explains Sheffield Metals’ recommendations; it is not a ZIP System® installation guide or warranty review. Confirm applicable manufacturer instructions and project-specific roof assembly requirements before installation.
