QUICK SPEC
STRUCTURAL CONCRETE – HYDROSTOP™ PREMIUMCOAT®
NOTE: The following “Quick Spec” is an abbreviated specification and is not meant to replace the detailed specification. Read
the entire 3-Part CSI System Specification prior to starting the project.
Method
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Use GAF Roof Brush to apply HydroStop™ PremiumCoat® Foundation Coat
Spray, roller, or brush apply HydroStop™ PremiumCoat® Finish Coat
Requirements
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Moisture survey recommended for all non-metal roofs.
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 or freezing temperatures in forecast for 24 hours.
Concrete must be fully cured (typically 28 days).
Application
Instructions
1.
2.
Conduct moisture survey to ensure concrete contains less than 8% moisture.
Repair or replace damaged or deteriorated sections with like materials, allowing cementitious
products to cure properly.
Power-wash roof to ensure it is free of dirt, debris, oil, and other contaminants that could
negatively affect adhesion. It is recommended to use United Cleaning Concentrate (UCC).
Allow to completely dry.
Prime with Epoxy Primer. Adhesion test required to ensure adhesion minimum of 2.0 pli.
Treat structural joints with backer rod and urethane or silicone sealant.
Treat all roof penetrations, drains, curbs, and scuppers.
Apply HydroStop™ PremiumCoat® System per the chart below:
3.
4.
5.
6.
7.
STRUCTURAL CONCRETE SPECIFICATION ™ ® HYDROSTOP PREMIUMCOAT SYSTEM
Foundation Coat Gal/Sq DFT1 1st Coat Finish Coat 2nd Coat 3rd Coat Total Gal/Sq
DFT1 Gal/Sq DFT1 10 Year 2.5 27 0.75 0.75
1.5
13
4.0
40 15 Year 2.5 27 1.00 1.00
2.0
17
4.5
44 1.00 20 Year 2.5 27 1.00 1.00
3.0
25
5.5
52 25 Year 2.5 27 1.50 1.50 4.0 33 6.5 60 1.00 1. Dry Film Thickness (DFT) is rounded to nearest mil and is theoretical. Actual DFT will vary dependent on substrate profile, application technique & waste factor. DFT includes 6 mils for fabric (where applicable). 2. Warranties available to GAF certified "Premium Contractors" only. Warranty2 Limited Emerald Diamond Warranty Pledge Pledge Yes
Yes
No
Yes
Yes
No
Yes
Yes
No
No Yes No