VaporDry® SA Roof Underlayment


Designed with the entire industry in mind, Benjamin Obdyke’s latest innovation, VaporDry® SA elevates the standard of modern roof protection.

VaporDry® SA embraces state-of-the-art technology, with 100% fully continuous acrylic adhesive designed for ideal fastener sealability and vapor permeance. The unique combination of the permeable trilaminate underlayment and acrylic adhesive create a high performance roof assembly by maximizing roof’s drying potential while maintaining the life cycle of the entire roof deck.

Oh yeah, did we mention it’s approved for all roofing types? You’ve never seen an acrylic adhesive like this.

VaporDry® SA Performance Features

  • Can be used with Cedar Breather Ventilated Underlayment and AeroNet Wall & Roof Ventilation Mat for maximum drying potential in wood, metal, and cold roof applications
  • Approved for use with all roofing types with a pitch 3:12 or greater
  • Provides enhanced protection from the elements during ‘dry-in’ period
  • Slip-resistant surface & printed overlap guides for an easier install
  • Meets ASTM D1970 testing standard for roofing underlayment
  • High temperature self-adhered underlayment: 250°F  service temperature
  • High-performance ice dam protection – ice & water location protection

Roll Width

4.75 ft (1.45 m)

Roll Length

80 ft (24.38 m)

Coverage

380 sq ft

Vapor Permeance

14 perms

Max UV Exposure

120 Days

Adhesion

Continuous Acrylic

Fire Rating

Class A

Service Temperature

250˚F

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