DELTA®-VENT S

The Problem

A typical roofing underlayment doesn’t allow moisture to escape which can damage the roof deck. This can then lead to the need to prematurely replace the shingles. 

The Solution

Using a high-performance underlayment will provide protection, energy conservation and sustainability to create a long-lasting roofing system. 

Product Details
Product Benefits
  • 3-layer roof underlayment
  • The two outer layers are made of a high-strength, spun-bonded polypropylene, thermally bonded to a highly vapor-permeable, watertight polymeric middle layer, on top of a protective fabric layer
  • High permeability
  • Waterproof, resisting the passage of bulk water from wind-driven rain and snow
  • High permeability – moisture accumulation within the structure is able to escape via diffusion
  • Maximizes airtightness, making it ideal for energy-efficient construction
  • Fabric layer on the lower side protects the WRB against damage (e.g. roughly sawn sheathing)
  • Matte black; prevents blinding glare during installation
  • Lightweight compared to bitumen and asphalt-saturated roofing felts; easily lined up and unrolled
  • Large roll size simplifies installation, while minimizing laps and maximizing productivity