How We Resolved Roofing Adhesive Approval Issues for Florida Compliance

At Oasis Engineering, we often encounter unique challenges in roofing installations where the exact product approval is not directly listed in current NOAs (Notice of Acceptance). Recently, we tackled an interesting case involving the Polyfoam PolyPro adhesive—now branded as ICP Polyset AH-160.

The Challenge: Product Approval Discrepancy

The project involved roofing tiles installed under NOA 22-0201.13, specifying ICP Polyset AH-160 adhesive. However, the actual adhesive used was labeled as Polyfoam PolyPro adhesive, referencing a different approval (NOA 15-0223.19).

The confusion arose due to product rebranding following corporate acquisitions, notably Polyfoam Products Inc. being acquired by 3M, leading to product name changes.

Engineering Analysis and Resolution

To resolve the issue and comply with Section 553.842(5) of the Florida Statutes, we conducted a detailed site-specific engineering analysis according to the 2023 Florida Building Code (FBC). This analysis included:

• Wind Uplift Analysis per FBC Section 1609.6.3 (Rigid Tile)
• Evaluation for Ultimate Wind Speed of 175 MPH (Exposure Category C, Risk Category II)
• Verification that PolyPro adhesive provides equal or greater attachment resistance compared to the originally approved product.

Findings and Approval

Our analysis confirmed that the Polyfoam PolyPro adhesive (now ICP Polyset AH-160) provided sufficient uplift resistance, fully meeting or exceeding the NOA requirements.

We successfully demonstrated that both adhesives are identical, despite the name change due to acquisition by 3M. Thus, ensuring compliance, safety, and performance under Florida’s strict building regulations.

Need Assistance?

If you face similar issues with roofing materials and approvals, our experienced engineers can provide site-specific engineered solutions to maintain your project’s compliance and safety.

For specialized engineering reports and letters, visit our dedicated site: Engineer Letters. Additionally, for detailed wind load calculations, check out our service at Wind Calculations.

Contact us today for expert assistance ensuring your project meets all applicable building code requirements.