Instructions / Assembly

Quick Specs
HydroStop® PremiumCoat® Liquid-Applied Roong (LAR) – Version 1.3
35
QUICK SPEC
STRUCTURAL CONCRETE – HYDROSTOP® PREMIUMCOAT® (HS-7)
Method
Requirements
Applicaon
Instrucons
• Moisture survey required.
• Roof must be clean, dry, and tight.
• Adhesion test required to ensure proper adhesion to substrate(s).
• Apply at 50°F (10°C) and rising with no rain, dew, fog or freezing temperatures
in forecast for 24 hours.
• GAF recommends that the surface temperature be at or less than 110°F (43°C)
during application.
• Concrete must be fully cured (typically 28 days).
1. Before applying the HydroStop® PremiumCoat® System, an adhesion test is
required to ensure an adhesion of a minimum of 2.0 PLI. Test patches to be
applied with system rates listed below.
2. Conduct moisture survey to ensure concrete contains less than 8% moisture.
3. Repair or replace damaged or deteriorated secons with like materials, allowing
cemenous products to cure properly.
4. Power wash roof to ensure it is free of dirt, debris, oil, and other contaminants
that could negavely aect adhesion. United Cleaning Concentrate (UCC) is
recommended to clean the roof. Allow roof to completely dry.
5. Prime with Epoxy Primer.
6. Treat structural joints with backer rod and compable sealant.
7. Control joints in excess of 1/16” (1.6mm) shall also be caulked with a compable caulk.
8. Treat all roof penetraons, drains, curbs, caulked control joints, and scuppers.
9. Apply HydroStop® PremiumCoat® Foundaon Coat and Finish Coat per the chart
below.
• Use GAF Roof Brush to apply HydroStop® PremiumCoat® Foundaon Coat
• Spray, roller, or brush apply HydroStop® PremiumCoat® Finish Coat
NOTE: The following “Quick Spec” is an abbreviated specicaon and is not meant to replace the detailed
specicaon. Read the enre 3-Part CSI System Specicaon prior to starng the project. Specicaons are
available at www.gaf.com.
SEAMS & DETAILS | HYDROSTOP® PREMIUMCOAT® SYSTEM
Treatment Type Product
Total
(Gal/Sq)
DFT*
(mils)
3-Coursed Rates HydroStop® Buer Grade and Fabric 4.0 43
Flashing Grade Only Rates HydroStop® Buer Grade 2.0 19
STRUCTURAL CONCRETE
HYDROSTOP® PREMIUMCOAT® SYSTEM
Foundaon Coat
(with fabric)
Finish Coat System Warranty
Total
(Gal/Sq)
DFT*
(mils)
1st Coat
(Gal/Sq)
2nd Coat
(Gal/Sq)
3rd Coat
(Gal/Sq)
Total
(Gal/Sq)
DFT*
(mils)
Total
(Gal/Sq)
DFT*
(mils)
Emerald
Pledge™
Diamond
Pledge™
10 Year 2.5 27 0.75 0.75 1.50 13 4.00 40 Yes Yes
15 Year 2.5 27 1.00 1.00 2.00 17 4.50 44 Yes Yes
20 Year 2.5 27 1.00 1.00 1.00 3.00 25 5.50 52 Yes Yes
* Dry Film Thickness (DFT) is rounded to nearest mil, and is theorecal. Actual DFT will vary dependent on substrate prole, applicaon
technique and waste factor.
Note: DFT for 3-coursed rates includes 6 mils for the fabric.