● ActiveHVHZ approvedLast checked Oct 21, 2026
Owens Corning Titanium & RhinoRoof Synthetic Underlayments
Florida product approval and Miami-Dade NOA.
Check: Not a tile underlayment (except Titanium FR with mechanically fastened tile in system F(3)); exposure limits 30-180 days by product; no hot mopping or recover.
FL #FL27945-R3
Miami-Dade NOA25-0813.01
NOA expires08/08/2028In 22 months
Approval details
- Manufacturer
- Owens Corning · One Owens Corning Parkway, Toledo, OH 43659
- Category
- Roofing · Underlayment · Synthetic polypropylene / SBS
- Approved in HVHZ
- Yes
- Deck type
- Wood
- NOA approved
- 09/11/2025 · replaces NOA Revises NOA 23-1102.02
Official documents
PDFMiami-Dade NOA 25-0813.01miamidade.govPDFFL27945-R3 evaluation report, RhinoRoof / Titanium UDL25, UDL30, UDL50 (HVHZ only)floridabuilding.org
Verify on floridabuilding.org ↗Products this NOA lists
Titanium UDL25 · Titanium UDL30 · Titanium UDL50 · Titanium X30 · Titanium PSU30 · Titanium FR · RhinoRoof U10 · RhinoRoof U20 · RhinoRoof Granulated · Tri-Built · ABC Pro Guard 20 · Reliabilt Synthetic Underlayment · SRS TopShield TS20
Quick answers
What is the FL number for Owens Corning Titanium & RhinoRoof Synthetic Underlayments?
FL27945 (HVHZ). The Miami-Dade NOA is 25-0813.01.
Is Owens Corning Titanium & RhinoRoof Synthetic Underlayments approved in the HVHZ?
Yes, on wood decks. The NOA expires 08/08/2028.
Public record. Always verify on the official source before you permit.