Installation Guide

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VYCOR ® enV-S™ Data Sheet

VYCOR enV-S™ Data Sheet

Fully-adhered weather resistive barrier sheet

Product Description

VYCOR enV-S™ represents the next generation of weather resistive barriers and is designed to provide superior

weather protection, and improved energy performance. The membrane brings together the weather protection

benefits of a self-adhered membrane, with the breathability of traditional housewraps. The unique adhesive coating

bonds strongly to the sheathing, but remains vapor permeable. VYCOR enV-S™ resists damage in windy conditions,

leading to less rework and a high quality appearance.

Unlike conventional building wraps, installation of VYCOR enV-S™ weather resistive barrier requires no mechanical

fastening or taping of seams. The membrane bonds to the sheathing, self seals at overlaps, and seals around fasteners

used to install siding and other wall elements. This results in exceptionally low levels of air leakage, and improved energy

efficiency of the building.

Keeping walls dry is the key to preventing rot of structural elements and mold growth. VYCOR enV-S™ fully-adhered

barrier protects against wind driven rain. VYCOR enV-S™ vapor permeable membrane allows the wall system to

“breathe”, and water vapor to escape.

Product Advantages

Principle Application

VYCOR enV-S™ water and air resistive barrier can be used for new and remedial residential construction applications.

It is installed onto exterior wall substrates and behind the exterior siding or cladding.

Fully adheredFully adhered—installation requires no mechanical fasteners or taping of seams

Water resistantWater resistant—forms a fully adhered barrier against

wind driven rain

Vapor permeableVapor permeable—“breathable” membrane prevents moisture from becoming trapped in the wall cavity and provides

walls the ability to dry

Air resistiveAir resistive—greatly reduces air leakage and helps improve building energy efficiency

Strong adhesionStrong adhesion—to unprimed plywood and oriented strandboard (OSB).

Controlled thicknessControlled thickness—factory made sheet ensures consistent, non-variable site application

LightweightLightweight—allows for easy handling and installation

Installation flexibilityInstallation flexibility—may be exposed up to 90 days

System solutionSystem solution—when used in combination with VYCOR Flashings

Product Data Sheets

Page 1 of 4

Summary of content (4 pages)

PAGE 1
Product Data Sheets ® VYCOR enV-S™ Data Sheet Fully-adhered weather resistive barrier sheet Product Description VYCOR ® enV-S™ represents the next generation of weather resistive barriers and is designed to provide superior weather protection, and improved energy performance. The membrane brings together the weather protection benefits of a self-adhered membrane, with the breathability of traditional housewraps. The unique adhesive coating bonds strongly to the sheathing, but remains vapor permeable.
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Product Data Sheets System Components VYCOR ® enV-S™ Weather Resistive Barrier—for use on above-grade walls at installation temperatures above 40°F (5°C) VYCOR ® Flashings—membrane for flashing around windows and doors PERM-A-BARRIER ® Primer Plus—waterbased vapor permeable primer used when adhesion appears to be marginal. Sealants—refer to Technical Letter 1 for details on compatible waterproofing sealants Installation Safety Refer to product label and Safety Data Sheet before use.
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Product Data Sheets If a separation sheet is used, it must be permeable to allow the wall system to breath. Any separation sheet recommended by stucco manufacturers is acceptable. Membrane Repairs Repairs must be made using VYCOR ® enV-S™ barrier sized to extend 6 in. (150 mm) in all directions from the perimeter of the affected area. If repairs are required, carefully cut out affected areas and replace in similar procedure as outlined in the text above.
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Product Data Sheets Supply PRODUCT UNIT OF SALE APPROXIMATE COVERAGE WEIGHT PALLETIZATION VYCOR ® enV-S™ 1 roll 400 ft2 (37.2 m2) per roll 27.3 lbs/roll 42 cartons (42 rolls) per pallet 43 lbs/pail 36 pails per pallet Weather Resistive Barrier 40 in x 120 ft (1.02m x 36.5m) PERM-A-BARRIER ® 450-500 ft2/gal 1 pail Primer Plus–5 gal pail (11-12 m2/L) Typical Performance Properties TEST TYPICAL VALUE Color White with Green logo Air permeance at test pressure of 1.57 psf (75 Pa) <0.