About LIBERTY™ Asphalt Primer
LIBERTY™ Asphalt Primer is a foundation coating that promotes an excellent bond for all types of asphalt-based roofing materials, such as LIBERTY™ Self-Adhering Base/Ply Sheet & Cap Sheet.
Installation based on applicator type:
- Roller: Apply smooth, heavy coat using parallel strokes for uniformity.
- Brush: Apply smooth, heavy coat using parallel strokes for uniformity. If the first coat is fully absorbed, apply a second coat.
- Spray: A high-quality 45:1 sprayer is recommended. Consult the manufacturer for optimum PSI, tip size, length of hose, and number of spray guns required for a uniform coat.pressure so that a bead of cement is visible at joint edge.
The right foundation for a variety of roof systems and materials
Create a strong bond for masonry roofs, walls, or floors prior to the use of asphalt cutback adhesives or application of hot-mopped or cold-applied built-up roofing materials.
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EXCELLENT PENETRATION
The primer penetrates deeply to create a deep, durable bond for coating and adhesives. -
STRENGTH AND FLEXIBILITY
Tenacious bonding accommodates temperature-related expansion and contraction of the roof system. -
EASY APPLICATION
Brush, roll, or spray this primer that also maintains excellent low-temperature flexibility.

LIBERTY™ step-by-step installation video
Step-by-step instructions show you how to install a LIBERTY™ low-slope roofing system.
Product Documentation
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Liberty SBS Self-Adhering Roofing System Calculator - RESLB507
Installation Instructions and Guides
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Liberty System Installation Instructions TRILINGUAL - RESLB504
Installation Instructions and Guides
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Liberty System Sell Sheet - RESLB100
Data Sheets
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Liberty Warranty Reference Sheet - RESLB505
Warranties
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LIBERTY™ Asphalt Primer SDS - 4133
Safety Data Sheets
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LIBERTY™ Premuium Asphalt Primer - RESLB119
Data Sheets
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LIBERTY™ SBS Self-Adhering Roofing System Installation — Step-by-step*
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Step 1
Inspect the roof, and repair or replace damaged areas. -
Step 2
Apply LIBERTY™ Asphalt Primer at a rate of a 1/2 gallon per 100 sq. ft. -
Optional (for 2-ply system):
Install LIBERTY™ Self-Adhering Base/Ply. -
Step 3
Install edge flashing at all eave and rake edges, and apply LIBERTY™ Flashing Cement on exposed flange. -
Step 4
Install LIBERTY™ Self-Adhering Cap Sheet. -
Step 5
Clean up by removing tools, unused materials, and other debris. Plan on inspecting roof annually if possible.
*See application instructions for complete details.