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0Rubberized Asphalt Roof Underlayment
Limited stock
Mid-State Quik-Stick Ice & Water Rubberized Asphalt Roof Underlayment 36 in x 65 ft, 195 sq ft
- Coverage area195sq ft
- Underlayment typeRubberized asphalt
- Unrolled length65ft
- Application methodPeel & Stick
Pickup on Wed, Aug 06 from Miami, FL
Limited stock
- Coverage area200sq ft
- Underlayment typeRubberized asphalt
- Unrolled length66.7ft
- Application methodPeel & Stick
Pickup on Wed, Aug 06 from Miami, FL
Limited stock
TAMKO Moisture Guard Ice & Rain Modified Bitumen Roof Underlayment 36 in x 64 ft, 193.5 sq ft
- Coverage area193.5sq ft
- Underlayment typeRubberized asphalt
- Unrolled length64ft
- Application methodPeel & Stick
Pickup on Wed, Aug 06 from Miami, FL
Limited stock
- Coverage area195sq ft
- Underlayment typeRubberized asphalt
- Unrolled length65ft
- Application methodPeel & Stick
Pickup on Wed, Aug 06 from Miami, FL
Limited stock
CertainTeed DryRoof SA Waterproof Rubberized Asphalt Roof Underlayment 36 in x 65 ft, 195 sq ft
- Coverage area195sq ft
- Underlayment typeRubberized asphalt
- Unrolled length65ft
- Application methodPeel & Stick
Pickup on Wed, Aug 06 from Miami, FL
Limited stock
Grace Vycor Select Rubberized Asphalt Roof Underlayment 36 in x 65 ft, 195 sq ft
- Coverage area195sq ft
- Underlayment typeRubberized asphalt
- Unrolled length65ft
- Application methodPeel & Stick
Pickup on Wed, Aug 06 from Miami, FL
Limited stock
Customer Choice
GAF WeatherWatch Mineral-Surfaced Rubberized Asphalt Roof Underlayment 36 in x 66.7 ft, 200 sq ft
- Coverage area200sq ft
- Underlayment typeRubberized asphalt
- Unrolled length66.7ft
- Application methodPeel & Stick
Pickup on Wed, Aug 06 from Miami, FL
Limited stock
- Coverage area200sq ft
- Underlayment typeRubberized asphalt
- Unrolled length66.7ft
- Application methodPeel & Stick
Pickup on Wed, Aug 06 from Miami, FL
Limited stock
APOC Weather-Armor HT2 High Temperature Roof Underlayment 39 in x 65.67 ft, 200 sq ft
- Coverage area200sq ft
- Underlayment typeRubberized asphalt
- Unrolled length65.67ft
- Application methodNail/Staple
Pickup on Wed, Aug 06 from Miami, FL
Limited stock
- Coverage area200sq ft
- Underlayment typeRubberized asphalt
- Unrolled length66ft
- Application methodPeel & Stick
Pickup on Wed, Aug 06 from Miami, FL
Limited stock
- Coverage area214sq ft
- Underlayment typeRubberized asphalt
- Unrolled length71.3ft
- Application methodPeel & Stick
Pickup on Wed, Aug 06 from Miami, FL
Limited stock
Polyglass Polystick TU MAX Self-Adhered Waterproofing Roof Underlayment 39 in x 65 ft 200 sq ft
- Coverage area200sq ft
- Underlayment typeRubberized asphalt
- Unrolled length65ft
- Application methodPeel & Stick
Pickup on Wed, Aug 06 from Miami, FL
Limited stock
Boral TileSeal HT Modified Asphalt Roof Underlayment 36 in x 72 ft, 216 sq ft
- Coverage area216sq ft
- Underlayment typeRubberized asphalt
- Unrolled length72ft
- Application methodPeel & Stick
Pickup on Wed, Aug 06 from Miami, FL
Limited stock
Owens Corning Titanium PSU30 High-Temp Self-Adhered Roof Underlayment 36 in x 72 ft, 216 sq ft
- Coverage area216sq ft
- Underlayment typeRubberized asphalt
- Unrolled length72ft
- Application methodPeel & Stick
Pickup on Wed, Aug 06 from Miami, FL
Limited stock
- Coverage area108sq ft
- Underlayment typeRubberized asphalt
- Unrolled length32ft
- Application methodPeel & Stick
Pickup on Wed, Aug 06 from Miami, FL
Limited stock
Customer Choice
- Coverage area215sq ft
- Underlayment typeRubberized asphalt
- Unrolled length65.67ft
- Application methodPeel & Stick
Pickup on Wed, Aug 06 from Miami, FL
Limited stock
- Coverage area215sq ft
- Underlayment typeRubberized asphalt
- Unrolled length65ft
- Application methodPeel & Stick
Pickup on Wed, Aug 06 from Miami, FL
Limited stock
- Coverage area200sq ft
- Underlayment typeRubberized asphalt
- Unrolled length66.7ft
- Application methodPeel & Stick
Pickup on Wed, Aug 06 from Miami, FL
Limited stock
Polyglass Polystick XFR Rubberized Asphalt Roof Underlayment 39 in x 49 ft, 160 sq ft
- Coverage area160sq ft
- Underlayment typeRubberized asphalt
- Unrolled length49ft
- Application methodPeel & Stick
Pickup on Wed, Aug 06 from Miami, FL
Limited stock
- Coverage area200sq ft
- Underlayment typeRubberized asphalt
- Unrolled length66ft
- Application methodPeel & Stick
Pickup on Wed, Aug 06 from Miami, FL
Limited stock
- Coverage area200sq ft
- Underlayment typeRubberized asphalt
- Unrolled length66ft
- Application methodPeel & Stick
Pickup on Wed, Aug 06 from Miami, FL
Limited stock
Grace Vycor Ice & Water Shield HT Rubberized Asphalt Roof Underlayment 36 in x 75 ft, 225 sq ft
- Coverage area225sq ft
- Underlayment typeRubberized asphalt
- Unrolled length75ft
- Application methodPeel & Stick
Pickup on Wed, Aug 06 from Miami, FL
- Overview
- Articles
What Is Rubberized Asphalt Underlayment?
Rubberized asphalt underlayment, also known as self-adhering ice and water shield, is a premium waterproofing membrane that combines asphalt with rubber polymers to create an impermeable barrier against moisture. Unlike traditional felt paper, this advanced material features a sticky adhesive backing protected by a removable release paper, making it self-adhering directly to your roof deck.
This polymer-modified bitumen material meets stringent ASTM D1970 standards and represents the most advanced form of roof protection available today. The rubber-like qualities allow the material to seal completely around fasteners like nails and screws, creating a truly waterproof barrier that traditional underlayments simply cannot match.
Technical Specifications Comparison
| Property | Rubberized Asphalt | Synthetic | Felt Paper |
|---|---|---|---|
| Water Resistance | 100% Waterproof | Water Resistant | Water Resistant |
| Lifespan | 50 years | 20-30 years | 15-20 years |
| Temperature Range | -40°F to 250°F | -20°F to 180°F | -10°F to 160°F |
| Installation Method | Self-Adhering | Mechanical Fasteners | Staples/Nails |
| UV Exposure Tolerance | 90-180 days | 60-90 days | 1-7 days |
| Self-Sealing Around Fasteners | Yes | No | No |
How Rubberized Asphalt Underlayment Works
The secret to rubberized asphalt's superior performance lies in its innovative composition. The material consists of several key layers:
| Layer | Function | Material |
|---|---|---|
| Adhesive Layer | Bonds directly to roof deck creating airtight seal | High-performance adhesive |
| Rubberized Asphalt Core | Provides waterproof membrane with flexibility | Asphalt synthetic rubber polymers |
| Protective Surface | Slip resistance and weather protection | Granules, sand, or smooth film |
This multi-layer construction creates a self-sealing membrane that automatically conforms around penetrations, ensuring complete waterproof protection even in the most vulnerable areas of your roof.
Key Benefits of Rubberized Asphalt Roofing
✅ Unmatched Waterproofing Performance
Unlike water-resistant alternatives, rubberized asphalt provides complete waterproof protection. This distinction is crucial - while traditional felt underlayment can slow water infiltration, rubberized asphalt sealer creates an impermeable barrier that prevents any moisture penetration.
⏱️ Exceptional Durability and Longevity
Quality rubberized asphalt shingles underlayment can last up to 50 years when properly installed. The material resists UV degradation, temperature extremes, and weather-related deterioration that quickly compromise traditional options.
🌡️ Temperature Resistance
High-temperature formulations can withstand heat up to 250°F without adhesive degradation, making them ideal for metal roofing applications and hot climates. This thermal stability ensures consistent performance regardless of seasonal temperature variations.
🔧 Self-Sealing Properties
The rubber polymers in the material create a self-healing effect around fastener penetrations. When nails or screws are driven through the membrane, the material automatically seals around the penetration, maintaining the waterproof barrier.
Applications and Installation Areas
For homeowners considering solar panel installation, rubberized asphalt underlayment provides excellent protection against the additional roof penetrations required for mounting systems. The self-sealing properties help maintain roof integrity even with the drilling and fastening required for solar arrays.
| Application Area | Risk Level | Recommended Coverage | Key Benefits |
|---|---|---|---|
| Eaves and Edges | High | First 3-6 feet from edge | Ice dam protection, backup barrier |
| Valleys | Very High | Full valley width 12" each side | Concentrated water flow protection |
| Penetrations | High | Around chimneys, vents, skylights | Self-sealing around openings |
| Low-Slope Areas | Medium-High | Full coverage (2:12 to 4:12 slopes) | Slow water movement protection |
| Solar Mounting Areas | Medium | Under mounting hardware | Additional penetration sealing |
Whether you're planning installation on metal roofing, tile surfaces, or traditional asphalt shingles, proper underlayment selection remains crucial for long-term system performance.
Cost Analysis and Value Comparison
| Factor | Rubberized Asphalt | Synthetic | Felt Paper |
|---|---|---|---|
| Material Cost (per sq ft) | $0.20 - $0.90 | $0.15 - $0.50 | $0.10 - $0.30 |
| Installation Labor | 20-30% faster (self-adhering) | Standard | Standard |
| Expected Lifespan | 50 years | 20-30 years | 15-20 years |
| Replacement Frequency | Once per roof lifetime | 1-2 times per roof | 2-3 times per roof |
| Total Cost of Ownership (50 years) | Lowest | Medium | Highest |
| Insurance Benefits | Potential discounts | Limited | None |
ROI for Different Applications
The return on investment varies by application:
Full roof coverage
Highest upfront cost but maximum protection and potential insurance benefits
Critical areas only
Cost-effective compromise focusing on eaves, valleys, and penetrations
Solar installations
Essential for protecting additional penetrations and maintaining system warranties
Building Code Requirements and Standards
Professional-grade rubberized asphalt underlayment must meet ASTM D1970 specifications for self-adhering polymer modified bituminous sheet materials. These standards ensure consistent quality and performance across manufacturers.
The International Building Code (IBC) and International Residential Code (IRC) recognize rubberized asphalt underlayment for specific applications, particularly in areas with histories of ice damming. Local building codes may require ice and water shield installation in vulnerable areas, making rubberized asphalt not just beneficial but mandatory in many regions.
Most building codes require professional installation for warranty compliance and permit approval. Certified solar installers and roofing contractors understand proper installation techniques that ensure code compliance and optimal performance.
Real-World Performance: Case Studies and User Experiences
"In my decades of roofing work, I've seen traditional felt fail within 10-15 years, especially in our humid climate. Rubberized asphalt installations from 20 years ago still look and perform like new."
— North Carolina contractor with over 30 years of experience
| Climate Zone | Performance After 15 Years | Common Issues | Contractor Feedback |
|---|---|---|---|
| Cold Climates (Minnesota, Alaska) | No ice dam issues reported | None with proper installation | "Prevents cracking from freeze-thaw cycles" |
| Hot Climates (Arizona, Texas) | No deterioration from heat exposure | Requires HT formulation | "Maintains adhesion under extreme heat" |
| Humid Environments (Florida, Louisiana) | No mold or moisture issues | None | "Prevents moisture absorption completely" |
| Hurricane Zones (Gulf Coast) | Significantly fewer insurance claims | Requires professional installation | "Withstands hurricane-force winds" |
Installation Best Practices
While smaller projects like RV solar installations may be suitable for DIY work, residential roof installations require professional expertise. Licensed contractors understand:
🎯 Proper surface preparation and priming techniques
Clean, dry deck surfaces ensure proper adhesion and long-term performance
🌡️ Temperature considerations for optimal adhesion
Installation within manufacturer-specified temperature ranges (typically 40°F - 85°F)
📏 Overlap requirements and seaming procedures
Proper overlap spacing prevents water infiltration at seams
🏠 Integration with existing roof systems
Seamless integration with current roofing materials and structures
| Installation Step | Critical Requirements | Common Mistakes to Avoid |
|---|---|---|
| Surface Preparation | Clean, dry deck surfaces | Installing over wet/dirty surfaces |
| Temperature Management | 40°F - 85°F for optimal adhesion | Installing in extreme temperatures |
| Proper Overlap | 6" minimum side laps, 4" end laps | Insufficient overlap spacing |
| Penetration Sealing | Special techniques around openings | Inadequate sealing around penetrations |
| Quality Control | Complete adhesion verification | Skipping final inspection |
Environmental and Sustainability Considerations
♻️ Longevity and Waste Reduction
The 50-year lifespan significantly reduces construction waste compared to alternatives requiring multiple replacements.
🌡️ Energy Efficiency Benefits
Some formulations include reflective surfaces that contribute to improved attic ventilation and reduced cooling costs.
🏅 Green Building Standards
Many certification programs recognize durable roofing materials as contributing factors to LEED and similar goals.
Frequently Asked Questions
Can rubberized asphalt underlayment be used on any roof type?
Yes, rubberized asphalt is compatible with virtually all roofing materials including asphalt shingles, metal roofing, tile, slate, and wood shakes. Specific formulations are available for different applications and temperature requirements.
How long can rubberized asphalt be left exposed during installation?
Most formulations can remain exposed for 90-180 days without degradation, providing flexibility during construction schedules. However, permanent roof covering should be installed as soon as practical.
Does rubberized asphalt void roof warranties?
Quality rubberized asphalt typically enhances rather than voids roofing warranties. However, always verify with your roofing manufacturer and ensure professional installation for warranty compliance.
Can I install rubberized asphalt over existing underlayment?
In most cases, existing underlayment should be removed for optimal performance. However, specific retrofit applications may allow installation over existing materials - consult with a professional contractor for proper assessment.
How does rubberized asphalt perform with solar panel installations?
Rubberized asphalt provides excellent protection for roofs with solar installations. The self-sealing properties help maintain waterproof integrity around mounting hardware penetrations, making it an ideal choice for solar roof applications.
Is rubberized asphalt worth the extra cost for my home?
For most homeowners, the long-term value, superior protection, and peace of mind justify the additional investment. Consider your local climate, roof complexity, and long-term ownership plans when making the decision.
Conclusion
Rubberized asphalt roof underlayment represents the pinnacle of roofing protection technology, offering unmatched waterproofing, durability, and long-term value. While the initial investment exceeds traditional alternatives, the 50-year lifespan, superior weather resistance, and reduced maintenance requirements make it an excellent choice for homeowners seeking the best protection for their investment.
Whether you're building new, replacing an existing roof, or planning a solar installation, consider rubberized asphalt underlayment as your first line of defense against water damage. Work with qualified professionals to ensure proper installation and maximize the benefits of this advanced roofing technology.
For homeowners planning solar installations, the combination of superior roof protection and renewable energy represents a smart investment in both home value and environmental responsibility. Quality underlayment ensures your roof remains protected throughout your solar system's 25 year lifespan, making both investments work together for decades of reliable performance.
Ready to Protect Your Roof Investment?
Discover our premium selection of rubberized asphalt roof underlayment products. Quality materials from trusted manufacturers with expert guidance to help you make the right choice.
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