SlopeShield Plus Self-Adhered


A highly vapor permeable roofing underlayment Air Barrier (AB) material

  • Used on Steep Slope Roofs Of 2:12, (9.46 Degrees) or Greater Pitch
  • Promotes Long Term Drying of Roofing Assembly Through Vapor Diffusion
  • Breathable and Airtight, with Exceptional Water and Air Holdout
  • Primerless Installation
  • High Drying Capacity (Vapor Permeability, 30 Perms)
  • Long exposure times, 6 months (180 days) UV and Climate Exposure Prior to Roof System Installation
  • Tough, Durable, and Slip Resistant—With Excellent Traction for Installers
  • Factory Made Rolled Good with Consistent Millage Thickness
  • Suitable for All Climates and Geographic Locations, Including Extreme Temperature Areas
  • 20 Year Material Warranty
Roofing System Compatibility

SlopeShield Plus Self-Adhered roofing underlayment can be installed under a variety of roofing systems including:


Standing Seam Metal Roof


Cedar Shingles/Shakes with VaproMat Drainage Matrix

SlopeShield Plus Clay Step 7 010319 web

Slate/Clay Tile with Batten/Counter-Batten Substructure

Engineered with Vapor Permeable Polymer Composite Technology (VPPCT™)

SlopeShield Plus SA is engineered with VaproShield’s  patent-pending Vapor Permeable Polymer Composite Technology (VPPCT™).

VPPCT™ is an advanced combination of polymer coatings and adhesive technology developed by VaproShield Research and Development creating a new class of roofing underlayment capable of being watertight, vapor permeable, foot traffic friendly and extremely durable.

SlopeShield Plus Self-Adhered’s high drying capacity and black coloration (which absorbs heat from the sun when exposed during construction), accelerates the drying process of the underlying materials.

This combination helps to mitigate construction moisture which would otherwise be trapped by a non-permeable roofing underlayment.

VPPCT Gold Badge 
Complete Roof and Wall Water Resistant, Vapor-Permeable Air Barrier System




Use SlopeFlashing™ -- pre-cut for easy installation handling--for eaves, hips, ridges, and valleys.

SSPlus How To Buy Slopeflashing2 022619

Roll Size: 19 2/3" x 102' (500mm x 31m), 167ft(15.5m2)

Roll Size: 29.5" x 102' (749mm x 31m), 255ft(23m2)

Drainage Matrix for Cedar Shingles/Shakes

Cedar Shingles/Shakes require a ventilated unimpeded vertical drainage cavity to be incorporated into the roofing underlayment installation. VaproMat accomplishes this and is available as a corresponding accessory.

hagen 150708 0029web VaproMat™
Hydrophobic filter fabric with polypropylene drainage matrix, installs over SlopeShield Plus Self-Adhered roof underlayment, available in two depths: 3mm, 7mm.

Building Envelope System

Self-Adhered WRB/Air Barrier Wall Membrane options: WrapShield SA Self-Adhered or RevealShield SA Self-Adhered for open joint cladding.

WrapShield SA Self-Adhered

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RevealShield SA Self-Adhered

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Compatible Roof Deck Substrates
  • Gypsum-based Roof Sheathing
  • Rigid Insulation
  • Concrete
  • Plywood
  • Cross Laminated Timber (CLT)
  • Nail Laminated Timber (NLT)
  • Dowel Laminated Timber (DLT)
  • Pre-painted Steel
  • Galvanized Metal
  • Aluminum (Painted/Mill Finish)
*For OSB and OSB factory-coated products contact VaproShield Technical.


SlopeShieldPlus ProductOverview 030119 Page 1

Data Sheet (PDF)

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VS 214 SlopeShield Plus Metal 020419 Page 6


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Submittal Package

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Specs (Doc)

Specs (PDF)

2016.09.08 WallShield IT Specification Page 1


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