Best Types of Roof Underlayment for Asphalt Shingles

Roof Right: Exterior Home Remodeling Specialists in Maryland
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Roof Right is your trusted partner in ensuring the longevity and resilience of your roofing system. As a family-owned exterior home remodeling company serving Maryland homeowners since 1994, we bring expertise and commitment to every project. This service page delves into the crucial topic of selecting the best types of roof underlayment for asphalt shingles. If you have questions about the right underlayment for your roof or are considering repairs or replacements, contact Roof Right today for professional guidance and superior service.

Best Types of Roof Underlayment for Asphalt Shingles

What Is a Roof Underlayment?

Before shingles adorn your roof, an essential component known as roofing underlayment is meticulously installed. This underlayment provides an additional layer of protection against the elements. Without proper underlayment, the risk of water infiltrating the roof deck increases, leading to issues like leaks, rot, mold, and mildew. Beyond protection, underlayment offers insulation, ensures a level surface for shingle attachment, seals around flashing, and acts as an additional sound barrier for your home.

Different Types of Roof Underlayment


Synthetic underlayment, a recent innovation, is crafted from woven or spun polyethylene or polypropylene. Its durability and tear resistance surpass traditional saturated-asphalt underlayment. While costing more than asphalt-saturated felt, synthetic underlayment remains an affordable option with impressive waterproofing capabilities. It is especially recommended for homes prone to mold, thanks to its water-repelling properties. The anti-slip feature, elasticity, and lightweight rolls make it a practical and efficient choice for roofing projects.

Rubberized Asphalt:

Regarded as a premium option, rubberized asphalt underlayment provides unparalleled waterproofing, particularly around leak-prone areas. Composed of rubber polymers and asphalt, it offers flexibility, sound absorption, and patching capabilities. The adhesive backing forms a waterproof seal with the roof deck, making it an excellent choice for regions experiencing temperature extremes.

Asphalt Saturated Felt:

The classic asphalt-saturated felt, also known as roofing felt or felt paper, has been a staple for decades. While it’s the most affordable option, it may not match the flexibility and durability of rubberized asphalt or synthetic underlayment. Available in 15 and 30 pounds per hundred square feet, it improves roof deck durability against impact damage. Multiple layers can be installed for added protection.

What’s The Best Type of Underlayment

Synthetic roofing underlayment emerges as a leading choice due to its numerous advantages over traditional materials like asphalt-saturated felt. Homeowners and contractors alike are increasingly opting for synthetic underlayment, drawn by enhanced durability, water resistance, and overall superior performance. The benefits of synthetic roof underlayment ensure a longer lasting barrier between your roof decking and shingles, making it a wise investment for discerning homeowners.

Why Choose Roof Right for Your Roof Installations in Maryland

Roof Right stands out as the premier choice for roof installations in Maryland, and here’s why: 

  • Fully Licensed & Insured.  
  • A+ Accredited Member of the Better Business Bureau.  
  • Recognized as the 80th largest replacement contractor in the United States by  Remodeling Magazine.  
  • Consistent recipient of Angie’s Super Service Award since 2007, reserved for the top 5%  of all contractors.  
  • Home Advisor Screened & Approved with an Elite Service Rating.  
  • 98% overall customer satisfaction rating based on an independent survey by Guild  Quality.  
  • Previous customer, bank, and vendor references available.  
  • Before & after photos of your work provided.  
  • Unparalleled service with management available for assistance even after hours. 
  • 100% financing available with approved credit.  

For top-notch roof installations and unmatched service, trust Roof Right to safeguard your  home. Contact us today to discuss your roofing needs and experience the Roof Right  difference.