ProArmor Synthetic
Owens Corning ProArmor is a premium synthetic underlayment with exceptional tear resistance and UV stability. Features a high-grip surface for safe walking.

Key Features
Technical Specifications
Expert Analysis: Pros & Cons
Advantages
- Industry-leading 180-day UV rating
- Excellent tear resistance
- Safe walking surface
- 30-year warranty
Considerations
- Premium pricing
- Heavier than some synthetics
- Not breathable
Regional Performance Ratings
Premium protection
Long UV tolerance
Strong construction
180-day UV rating ideal
Excellent for rain
Premium moisture barrier
Frequently Asked Questions About ProArmor Synthetic
How long can ProArmor Synthetic be exposed to UV before installing shingles?
ProArmor Synthetic has a UV exposure rating of 180 days. This means the underlayment can remain exposed to sunlight for up to 180 days before shingles must be installed to maintain warranty coverage.
How much does ProArmor Synthetic cost per square?
ProArmor Synthetic typically costs between $10 and $14 per roofing square (100 square feet). Actual prices may vary based on location, supplier, and quantity purchased.
Is ProArmor Synthetic breathable?
No, ProArmor Synthetic is not vapor permeable. It provides excellent water resistance but does not allow moisture to escape through the material.
What warranty does ProArmor Synthetic offer?
ProArmor Synthetic comes with a 30-year limited. For full warranty terms and conditions, contact Owens Corning directly or consult with your roofing contractor.
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