Waterway - Rainscreen & Ventilation Mats

"Create Space Between Your Building And The Elements"

WaterWay Rainscreen Drainage Mats consist of a Nylon / Polymer core of fused, entangled filaments in varying thicknesses from a nominal 1/4 inch to 3/4 inch, depending on desired cavity space and cladding selection. Certain profiles are available with a protective Moisture Resistive Filter Fabric bonded to one side or consider WaterWay Plus® - a revolutionary "Patented" Drainage Mat incorporating a .45" / 11mm thick polymer matrix heat laminated to a breathable filter fabric on one side and Typar® code compliant (NER-660, CCMC-12892R) weather resistive barrier (WRB) on the other side. This multiple layer product creates a one step WRB and Rainscreen drainage assembly in a single application. WaterWay Rainscreen Mats are designed for Stucco, EIFS, Manufactured & Natural Stone, Fiber-Cement, Brick, Lap and Cedar Sidings and other Wall Cladding Systems.

Specifications And Details

 

Three Unique Profiles Accommodate Cladding Selection & Space Requirements

WaterWay Plus is a revolutionary Patented Vertical Wall Rainscreen Drainage Mat consisting of a nominal 7/16 inch / 11mm thick extruded polymer matrix of tangled monofilaments. The monofilaments are heat laminated to an impenetrable, breathable, filter fabric on one side and Typar® a code compliant weather resistive barrier on the other side. This multiple layer product creates a one step weather resistive barrier and rainscreen drainage assembly in a single application. WaterWay Plus is designed for use with manufactured and natural stone, traditional and one coat stucco, EIFS, fiber-cement and wood based sidings, masonry, metal and other wall cladding materials. This rainscreen product provides an un-interrupted drainage path & ventilation for incidental moisture between exterior finish materials and wall sheathing.

 

WaterWay 3 mm

Product Data Sheet

WaterWay 3 mm is a nominal 1/8 inch / 3mm thick drainage product consisting of a polymer core of fused entangled filaments bonded to a moisture resistant filter fabric on the outer surface. WaterWay 3mm is designed for use with manufactured and natural stone, traditional and one coat stucco, EIFS, fiber-cement, wood based sidings, masonry, metal and other wall cladding materials. This rainscreen product provides an uninterrupted drainage path & ventilation for incidental moisture between exterior finish materials and wall sheathing. Applications for roofing and below grade drainage.

 

WaterWay 7 mm

Product Data Sheet

WaterWay 7mm is a nominal 5/16 inch /7 mm thick drainage product consisting of a polymer core of fused entangled filaments bonded to a moisture resistant filter fabric on the outer surface. WaterWay 7mm is designed for use with manufactured and natural stone, traditional and one coat stucco, EIFS, fiber-cement, wood based sidings, masonry, metal and other wall cladding materials. This rainscreen product provides an uninterrupted drainage path & ventilation for incidental moisture between exterior finish materials and wall sheathing. Applications for roofing and below grade drainage.

*** Filter Fabric Exceeds AC -38 Acceptance Criteria for Weather Resistive Barriers ***

 

WaterWay 11mm is a Vertical Wall Rainscreen Drainage Mat consisting of a nominal 7/16 inch / 11mm thick extruded polymer matrix of tangled monofilaments. The monofilaments are heat laminated to an impenetrable, breathable, filter fabric on one side. WaterWay 11mm is designed for use with manufactured and natural stone, traditional and one coat stucco, EIFS, fiber-cement and wood based sidings, masonry, metal and other wall cladding materials. This rainscreen product provides an uninterrupted drainage path & ventilation for incidental moisture between exterior finish materials and wall sheathing.

 

WaterWay 19 mm

Product Data Sheet

WaterWay 19mm is a nominal 4/5 inch / 19mm thick drainage product consisting of a polymer core of fused entangled filaments bonded to a moisture resistant filter fabric on the outer surface. The product is designed for use with manufactured and natural stone, traditional and one coat stucco, EIFS, fiber-cement, wood based sidings, masonry, metal and other wall cladding materials. This rainscreen product provides an uninterrupted drainage path & ventilation for incidental moisture between exterior finish materials and wall sheathing. * Meets Canadian Code Requirements for Rainscreen *.

 

WaterWay 19 MD

Product Data Sheet

WaterWay 19MD is a nominal 4/5 inch / 19mm thick Mortar Deflection System that enhances moisture drainage and ventilation in masonry construction. The product consisting of a polymer core of fused entangled filaments. This filament matrix design prevents mortar droppings from blocking and clogging at the base walls and/or head joint drainage channels. This deflection system to insure an uninterrupted drainage path is achieved that also contributes to air circulation & ventilation. Depending on design requirements WaterWay11MD can accommodate cavities of less than 1inch up to 2 inches thick. Simply install a single layer for thinner cavities or double into a "U" configuration for wider space requirements.

 

Products Below Available With Minimum Quantity Purchase

WaterWay 9714

Product Data Sheet

WaterWay 9714 is a nominal 3/16 inch thick drainage product consisting of a nylon core of fused entangled filaments and a geotextile fabric bonded to one side. WaterWay 9714 is designed for use with traditional stucco, EIFS, cultured stone, and other wall cladding applications as an exterior wall drain. The rainscreen provides a drainage path & ventilation for incidental moisture between exterior wall finish materials and weather resistive barriers.

 

WaterWay 9010

Product Data Sheet

WaterWay 9010 is a nominal 3/8 inch thick drainage product consisting of a nylon core of fused, entangled filaments and a geotextile fabric bonded to one side. WaterWay 9010 is designed for use with traditional stucco, EIFS, manufactured stone and other wall cladding applications as an exterior wall drain. The rainscreen provides a drainage path & ventilation for incidental moisture between exterior wall finish materials and weather resistive barriers. WaterWay 9010 is also used as a means of relieving hydrostatic pressure from backfills abutting below grade structures, planters and plaza decks.

 

Features & Benefits:

Rainscreen Components:

"America's Only Rainscreen with Water Resistant Filter Fabric"

Moisture Resistant Filter Fabrics

  • Ensures a Clear Drainage Path
  • Supports Uniform Thickness in Stucco / Mortar
  • Enhanced Key or grab of Stucco / Mortar to Lath
  • Distributes Point Load Compression in Siding Material Applications
  • Keeps Wet Cladding Away from Weather Resistive Barriers

Testing:

Boat Test
  • H2O vapor transfer in 12 minutes
  • 96 hours no water passed through the membrane
  • Equal to 4 Days
Hydrostatic Pressure Test - AATCC-127
  • 10cm / 18 hours
  • 3.5" equal to a 70 mile an hour wind
Acceptance Criteria AC-38 for Water Resistive Barriers
  • Passes section 4.2.2 Ponding Water Test
  • Approved CCMC method
Water Vapor Transmission ASTM E-96
  • Exceeds 247 Perms
Retains H2O resistance after stucco / mortar application.
 

Drainage Mat Core:

WaterWay Plus
WaterWay 7 mm
WaterWay 11 mm

Creates Space (varying thicknesses)
Provides Rigidity / Compressive Strength
Creates Cushion Between Building & Cladding Assembly
90% Open Space within Cavity

 

WaterWay Rainscreen Benefits:

  • Water Drainage & Movement
  • 50 times Faster at Draining Water than Cladding attached direct to WRB
    Test Compared Wrinkled House-wrap vs. WaterWay Rainscreen
  • Provides a Capillary Break to Drain Liquid Water
  • Offers Continuous Ventilation of the Cavity
    Air Flow by Convection –
    The Cold Air Warms & Rises
    Warmer Air Carries Higher Levels of Water Vapor
  • Un-interrupted Space – Helps to Equalize Pressure in the Wall
    Not a Chambered Cavity like Strapping or Furring Systems
  • Creates a Cushion Between the Building and Cladding
    Reduces Stress & Cracks
  • Simple Interface with Adjacent Material
    Easy to Detail, No furring of Windows / Doors / etc...
  • No Special Training or Skills in Labor Force
    Just hammer staple to the Wall with corrosion resistant staples
  • Efficiencies in Installation Compress Construction Schedules
    Competitive Cost vs. Alternative methods - Furring / Strapping
    Value Engineering – Most Competitive Rainscreen Method
  • Broad Temperature Range – High 250 Degrees F / Low -100 Degrees F
  • Class “A” Fire Rated No need for fire blocking
  • Exceeds AC-24 Drainage Criteria for EIFS
  • Thermal Break Between Cladding & Building
  • LEED Points / Green Build Advantage
    Sustainability - Increase Service Life
    Post Consumed PP @ 40%
  • Insurability – Saves Money on Insurance Premiums
  • Meets Canadian Code Requirements – WaterWay 11mm / Plus
  • Complete Testing, Specifications, Details & BIM objects

Leed Waterway Ratings

 

WaterWay Drainable Stucco Assembly

  1. Substrate / Sheathing
  2. Weather Resistive Barrier (WRB)
  3. Therm-Flash (peel & stick) - optional
  4. WaterWay Rainscreen Drainage Mat
  5. Lath
  6. Scratch & Brown Coat (stucco)
  7. Base Coat & Reinforcing Mesh - optional (PRM or Stuc-O-Base)
  8. Stuc-O-Flex Elastomeric Acrylic Finish or Europlast / Euroseal
 

ICC / IRC Code Mandates:
Exterior wall envelopes are required to be weather-resistant and provide a means for draining water that enters the assembly.

 

Healthier Walls Through Rainscreen & Ventilation

"Create Some Space Between Your Building And The Elements"

Fundamental theory in cladding integrity prevents liquid water from penetrating vertical walls, ideally through appropriate materials selection, architectural detailing and professional installation consistent with specifications and construction documents.

Unfortunately, we can all attest to the increased frequency of problems arising from water infiltration and deterioration in exterior envelopes. Particularly, wood framed buildings constructed to more stringent codes appear increasingly susceptible to problems unlike older, drafty and uninsulated walls built decades ago. Avoiding deterioration in older buildings is not a consequence of better resistance to water intrusion, but rather a better ability to dissipate moisture. Forensic evaluations note compromise from moisture penetration increase significantly if water is unable to evaporate or drain, causing accelerated consequential damage. Absent perfect design, execution, materials performance and continued maintenance, inevitably problems can develop.

 

If we are more susceptible to decay, let’s consider requirements for mold / fungi growth:

  1. Spores – Present everywhere.
  2. Temperatures - Generally above 40 degrees F.
  3. Food Source – Most organic materials including wood and paper.
  4. Oxygen – Even with low permeance building materials.
  5. Water – Varies by species, growth occurs at levels between 20% - 40%.
 

Depending on project location and climate, the moisture content of even protected building products may fluctuate at levels just below the minimum required for fungal growth. And if one considers four of the five elements needed for mold development are inevitably present at all times, even a small amount of additional water can result in decay, causing deterioration.

If modern construction techniques reduce water vapor diffusion and agree moisture will likely penetrate outside walls, it is important to incorporate a defensive strategy to mitigate the effects of water intrusion and prevent rot.

"Create That Space Through Vertical Wall Drainage Mats"

WaterWay Rainscreen Drainage Mats provide that additional space for drainage. They also contribute to air circulation and ventilation when properly designed. The combination of water drainage and increased air flow will enhance drying and in turn reduce the damaging effects of water penetration. Building papers and house-wraps are well established in providing some protection against substrate damage. Traditional barriers offer a marginal safeguard, but they do not provide an adequate path for drainage. With siding materials tightly installed against weather resistive barriers, opportunities for drainage and ventilation can be inadequate or even blocked.

ICC and IRC Mandate:

"Exterior wall envelopes are required to be weather - resistant and provide a means for draining water that enters the assembly"

Engineers and designers are exploring various configurations to accommodate the code and remove water from the exterior walls while incorporating some mechanism of ventilation. Enhancing air flow and managing entrapped moisture make sense; the challenge lies in a simple, efficient and cost effective approach.

From Boston to Seattle, WaterWay drainage mats are finding acceptance with some of the most recognized and distinguished building enclosure specialists in North America. In both new construction and cases of cladding remediation, Drainage Mats accommodate essential criteria in today’s construction environment.

"WaterWay Drainage Mats" consist of a Nylon / Polymer core of fused, entangled filaments in varying thicknesses from a nominal ¼ inch to ¾ inch depending on desired cavity space and cladding selection. Certain profiles are available with America’s only moisture resistive filter fabric bonded to one side, or consider WaterWay Plus our “Patent Pending” three layer product that creates a code compliant weather resistive barrier (NER-660, CCMC-12892R) and rainscreen in a single application. WaterWay” Rainscreen mats are equally effective for stucco, EIFS, manufactured & natural stone, fiber-cement, brick, standard lap and cedar sidings and other wall system materials.

This technique achieves desired results with limited additional expense. WaterWay Rainscreen Mats run as little as $.65 a square foot for materials. With varying labor rates it’s difficult to offer a specific cost, although it should not be more that $.95 - $1.50 (labor & materials) per foot. With over 60 million feet in service and an exponential increase in demand, you can feel confident in this effective approach.

For additional information on “WaterWay Rainscreen Drainage Mats” including product data sheets, profile samples, test reports, detail drawings, specifications and an animated DVD presentation.

Contact Stuc-O-Flex International, Inc. @ 1-800-305-1045
www.stucoflex.com or e-mail info@stucoflex.com

Note: Surfactants present in some siding materials may decrease water resistance of the secondary moisture barrier if direct contact occurs

WaterWay Drainage Mats in Roofing Applications

Galvanized metal roofing (zinc coated) is common in commercial building and especially susceptible to corrosion. In any climate, moisture can build up under the roof and cause damage to the structure. WaterWay mats can be incorporated as a spacer between the metal and roof sheathing providing a passage for moisture drainage while reducing water accumulation which causes corrosion. In cold weather, a cold roof surface is desirable to prevent the build-up of ice and the problems associated with ice dam backup. WaterWay mats create a thermal break and ventilation layer in the roof where the conduction of heat would normally occur. This characteristic reduces the potential for ice dams.

"Need a vent layer in commercial roofing?"

For many designers the need for a ventilation layer between the roofing shingle or membrane and the insulation has become a standard technique to ensure that moisture does not build up beneath the sheathing. Furring is an expensive way of spacing the insulation from the sheathing and limits ventilation to one direction. This system can now be replaced by a single layer of WaterWay Rainscreen Mat designed to reduce roof top temperatures while providing maximum insulation efficiency. The mat is rigid enough to support the full weight of the roof and its open structure allows for multi-directional ventilation. For the contractor, the installation of this lightweight product is easy and quick.