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Vantell VSRU15500 Roofing Underlayment

A standard synthetic roof underlayment for dependable secondary weather protection beneath roof coverings.

Product Overview

Vantell VSRU15500 Roofing Underlayment - Standard Type is designed for sloped roof installations, providing reliable waterproofing and vapor barrier performance beneath roofing materials. It helps protect the roof deck from water intrusion, moisture exposure, and harsh weather conditions.

With good tensile strength, nail tear resistance, low-temperature bendability, and stable water resistance, VSRU15500 offers a practical and durable underlayment solution for residential and light commercial roofing applications.

Product Information

ModelVSRU15500
Width × Length1.5 m × 50 m
Package72 rolls / pallet

Key Benefits

  • Designed for sloped roof waterproofing and weather protection

  • Helps protect the roof deck from moisture and water intrusion

  • Good tensile strength and nail tear resistance for installation reliability

  • Maintains flexibility under low-temperature conditions

  • Suitable for standard roofing underlayment applications

Technical Data

Tensile Strength (PULL)        Vertical: 178 N/mm
>>>        Horizontal: 127 N/mm   GB/T 328.9-2007     
Stretch Rate at Max Force        Vertical: 50%
>>>        Horizontal: 30%   23 ± 2 °C, test speed 100 mm/min     
ImpermeabilityNo leakage, 2000 mm water column for 2 h   JC/T 2291-2014
Low Temperature BendabilityNo cracks, -30 °C for 1 hour   JC/T 2291-2014
Nail Tear Resistance        Vertical: 99 N
>>>        Horizontal: 117 N   GB/T 328.18-2007     
Water Vapor Transmission Rate21.2 g/(m²·24 h)   Water method, 23 ± 0.6 °C, RH diff.: 90 ± 2%
System Note: For best long-term performance, this product should be used as part of a complete Vantell building envelope moisture management system.

Key Applications

  • Sloped roof underlayment applications
  • Weatherproofing layer beneath roofing materials
  • Roof deck moisture and vapor protection
  • Residential and light commercial roofing systems
  • Long-term protection against harsh weather exposure