Instructions / Assembly

Quick Specs
HydroStop® PremiumCoat® Liquid-Applied Roong (LAR) – Version 1.3
29
QUICK SPEC
METAL – HYDROSTOP® PREMIUMCOAT® (HS-1)
Method
Requirements
Applicaon
Instrucons
• 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.
• Use GAF Roof Brush to apply HydroStop® PremiumCoat® Foundaon Coat
• Spray, roller, or brush apply HydroStop® PremiumCoat® Finish Coat
1. Before applying H ydroStop® PremiumCoat® , an adhesion test is required to
ensure an adhesion minimum of 2.0 pounds per linear inch (PLI). Test patches to
be applied with rates listed below.
2. Tighten and/or replace exisng fasteners.
3. 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.
4. Install crickets to divert water and complete other necessary sheet metal
repairs.
5. Prime rusty areas with Acrylex 400 Primer or StableRust Rust-Inhibing Primer.
For severe rust, prime area with Lock-Down Primer.
6. Treat all seams.
7. Treat all roof penetraons, skylight curbs & rake edges with HydroStop®
PremiumCoat® Buer Grade Flashing with fabric.
8. Encapsulate fasteners with HydroStop® HydroCap Fastener Caps or HydroStop®
PremiumCoat® Buer Grade Flashing.
9. Apply HydroStop® PremiumCoat® Foundaon Coat and Finish Coat per the
chart below.
METAL
HYDROSTOP® PREMIUMCOAT® SYSTEM
Foundaon Coat Finish Coat System Warranty
Area
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
Field of Roof
(no fabric)
N/A 0 0.75 0.75 1.50 13 1.50 13 Yes Yes
15 Year
Field of Roof
(no fabric)
N/A 0 1.00 1.00 2.00 17 2.00 17 Yes Yes
20 Year
Field of Roof
(no fabric)
N/A 0 1.00 1.00 1.00 3.00 25 3.00 25 Yes Yes
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
* 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.