Instructions / Assembly

Quick Specs
HydroStop® PremiumCoat® Liquid-Applied Roong (LAR) – Version 1.3
34
QUICK SPEC
EPDM – HYDROSTOP® PREMIUMCOAT® (HS-6)
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.
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 and remove/replace all wet areas.
3. Repair membrane including seams, penetraons, ashings, curbs, and
terminaons with like materials.
4. Clean roof to ensure it is free of dirt, debris, oil, and other contaminants that
could negavely aect adhesion.
5. Prime using either Adhere-It II or CleanAct Rinsable Primer.
6. Treat all roof penetraons, drains, curbs, and scuppers.
7. All loose seams must be 3-coursed with ashing grade and fabric.
8. Apply HydroStop® PremiumCoat® Foundaon Coat and HydroStop®
PremiumCoat® 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
EPDM
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.