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RhinoRoof® U20


Helps Create a WaterProof Barrier

Provides a secondary barrier to help keep water out of the home.

Helps Create a WaterProof Barrier

Provides a secondary barrier to help keep water out of the home.


RhinoRoof® U20 Underlayment helps seal your home against water damage and other moisture infiltration which can cause mold growth and rotting deck boards. RhinoRoof® U20 is up to 2 times stronger than competitive synthetic underlayments and offers excellent wind resistance and durability through heavy roof traffic and adverse weather conditions. Ask your contractor about these other benefits too:

  • 20-Year Limited Warranty*
  • Ease of installation – Wider, lighter, more coverage per roll
  • Lays flat and does not wrinkle or absorb water
  • Provides roof deck protection from UV exposure for up to 90 days**
  • FiberGrip slip-resistant walking surface
RhinoRoof® U20 Roof Underlayment is part of the Owens Corning Total Protection Roofing System®.

* See actual warranty for complete details, limitations and requirements.
** Special application required for extended exposure. See installation instructions.

Roofing Contractor Customer Loyalty Program

Get a $100 Visa® Reward Card for every 30 rolls of Titanium® or 90 rolls of RhinoRoof® underlayment purchased. Click here for details

Dual Logo Printing Available

Maximize your street exposure and attract more customers with a custom dual logo RhinoRoof® dual logo print. Click here for details

Specifications and Literature


Product Information

Technical Data

RhinoRoof® U20 Specifications
Length per roll: 286’ / 87 m
Width per roll: 42” / 1.1 m
Weight per roll: 23.5 lbs / 10.6 kg
Roll size: 10 sq / 93 m²
Rolls per pallet: 67
Pallet weight: 1626 lbs / 738 kg

Meets or Exceeds the following Test Standards
Breaking Strength ASTM D146
Pliability ASTM D146
Loss of Heating ASTM D146
Unrolling ASTM D226
Liquid Water Transmission ASTM D4869
Tear Resistance ASTM D4073
Dimensional Stability ASTM F1087
Pliability CSA A123.3
Moisture Vapor Permeance ASTM E96
Burst Strength ASTM D751
Class A Fire^ ASTM E108

^ UL Class A Fire Resistance applies when installed under asphalt shingles

Applicable Standards & Approvals

  • ASTM D4869
  • ASTM D226
  • ASTM E108/UL 790, Class A Fire Resistance
  • Florida Product Approval
  • Miami-Dade Product Approval
  • Texas Department of Insurance
  • Intertek Code Compliance Research Report CCRR-1015
  • CAN/CSA A123.3

Total Protection Roofing System®

Total Protection is more than shingle deep

It takes more than shingles to protect your home. It takes an integrated system of components and layers designed to help perform in three critical areas.

  • SEAL Helps create a water-proof barrier
  • DEFEND Helps protect against nature's elements
  • BREATHE For balanced attic ventilation

^ Excludes non-Owens Corning® roofing products such as flashing, fasteners and wood decking

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Even though we’re a global company, we’re always ready to answer your questions. Call to speak with an Owens Corning representative so you can start your project right away.