Drainage media has been used behind Master Wall® Systems for many years. The drainage media can vary from a very thin cross section material, a thicker version designed to prevent capillary action to a true ventilated wall cavity. The designs will vary and Master Wall® is available to help coordinate detailing as needed.
Application Procedure
Job Conditions – Follow manufacturer’s instructions for the application of drainage media.
The following manufacturers are approved by Master Wall Inc.:
| Manufacturer | Product | Type | Approved Systems | Comments |
| Advanced Building Products Inc. | Mortairvent | Rainscreen Mat with Backer Fabric, 6 mm & 10 mm | Aggre-flex Drainage EIFS, Cemplaster Fiberstucco, Stucco Cement Board Coatings, QRW1 Drainage EIFS | Minimum 1–1/2” Insulation board required for EIFS, Two water barriers required under Master Wall stucco systems |
| Benjamin Obdyke | Home Slicker | Rainscreen Mat | Aggre-flex Drainage EIFS, Cemplaster Fiberstucco, Stucco Cement Board Coatings, QRW1 Drainage EIFS | Minimum 1–1/2” Insulation board required for EIFS, weather barrier required behind stuccos to prevent bonding to mat |
| Home Slicker Plus Typar | Rainscreen Mat with water barrier | Aggre-flex Drainage EIFS, Cemplaster Fiberstucco, Stucco Cement Board Coatings, QRW1 Drainage EIFS | Minimum 1–1/2” Insulation board required for EIFS, weather barrier required behind stuccos to prevent bonding to mat | |
| Home Slicker Stone & Stucco | Rainscreen Mat with mortar fabric | Cemplaster Stucco, OCS | Two water barriers required under Master Wall stucco systems | |
| Cosella-Dorken
|
Delta Dry | True Ventilated Wall Cavity | Aggre-flex Drainage EIFS, Cemplaster Fiberstucco, Stucco Cement Board Coatings, QRW1 Drainage EIFS | Provide ventilation path for moisture migration. Minimum 1–1/2” Insulation board required for EIFS, weather barrier required behind stucco to prevent bonding to Delta Dry |
| Keene Building Products
|
Driwall Rainscreen 020-1 | Rainscreen Mat with mortar fabric | Aggre-flex Drainage EIFS, Cemplaster Fiberstucco, Stucco Cement Board Coatings, QRW1 Drainage EIFS | Minimum 1–1/2” Insulation board required for EIFS, weather barrier required behind stuccos to prevent bonding to mat |
| Driwall Rainscreen 10mm | Rainscreen Mat with mortar fabric | Aggre-flex Drainage EIFS, Cemplaster Fiberstucco, Stucco Cement Board Coatings, QRW1 Drainage EIFS | Minimum 1–1/2” Insulation board required for EIFS, weather barrier required behind stuccos to prevent bonding to mat | |
| Driwall Rainscreen 075 | Wide Spaced Rainscreen Mat | Cemplaster Fiberstucco | Two water barriers required under Master Wall stucco systems | |
| Driwall Rainscreen 075-1 | Wide Spaced Rainscreen Mat with mortar fabric | Cemplaster Fiberstucco | Two water barriers required under Master Wall stucco systems | |
| Moisture Management for Masonry/Clark Dietrich Building Systems | LathNet® | 2.5 lb/sy Self Furring Metal Lath with Drainage Plane Mesh | Cemplaster Fiberstucco | Two water barriers required under Master Wall stucco systems |
| Plastic Components | Ultra-Lath | Plastic Lath in sheets or rolls | Aggre-flex Drainage EIFS, Stucco Cement Board Coatings, QRW1 Drainage EIFS | Systems must be mechanically attached through plastic lath |
| Ultra-Drain Mat
UDM-40 (10 mm) UDM-25 (6 mm) |
Rainscreen Mat with mortar fabric | Aggre-flex Drainage EIFS, Cemplaster Fiberstucco, Stucco Cement Board Coatings, QRW1 Drainage EIFS | Minimum 1–1/2” Insulation board required for EIFS, weather barrier required behind stuccos to prevent bonding to mat | |
| Varies | Varies | 2.5#/sy metal lath fastened to substrate in accordance with ASTM C1063 | Aggre-flex Drainage EIFS, QRW1 Drainage EIFS | Aggre-flex Drainage may be adhered to the metal lath with F&M or MBB Adhesives, others must be mechanically attached through metal lath. |
Information contained in this product data sheet conforms to the standard detail recommendations and specifications for the installation of Master Wall Inc. products and is presented in good faith. Master Wall® Inc. assumes no liability, expressed or implied as to the architecture, engineering, or workmanship of any project. This information may be concurrent with, or superseded by other applicable documents, such as specifications and details. Contact Master Wall® Inc. for the most current product information.
