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Roofing underlayment is a critical component of any roofing system, providing an extra layer of protection between the roof deck and the shingles.
What Is Underlayment? Underlayment is a water-resistant or waterproof barrier installed directly on the roof deck. It serves as a secondary line of defense against water infiltration.
Types of Underlayment:
Asphalt-Saturated Felt (Tar Paper)
- Traditional option used for decades
- Available in 15# and 30# weights
- Cost-effective but less durable
Synthetic Underlayment
- Modern, high-performance option
- Lightweight yet stronger than felt
- Better UV resistance
- Longer lifespan
Rubberized Asphalt (Peel-and-Stick)
- Self-adhering membrane
- Waterproof, not just water-resistant
- Best for valleys, eaves, and penetrations
- Required in ice dam prone areas
Why Underlayment Matters
- Protects against wind-driven rain
- Provides backup waterproofing
- Required by building codes
- Extends roof life
- Required by most shingle warranties
At Roofing Tyler TX, we use premium underlayment products to ensure your roof provides maximum protection.
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