Synthetic vs. Felt Roofing Underlayment

The choice of roofing underlayment is critical to safeguarding your home from water-related damage. In this post, Home Pro Exteriors, Inc. shares more information about roofing underlayment and whether you should choose synthetic or felt for this component.

Synthetic Underlayment

Synthetic underlayment has rapidly gained popularity due to its durability and resistance to elements. Crafted from polypropylene, polyethylene, or polyester, this underlayment is designed to be water-resistant and less prone to tearing compared to felt. Lightweight and able to withstand extreme weather, synthetic underlayment offers superior protection against rain, snow, and wind.

Its other benefits include the following:

Durability: It is resistant to UV exposure; it can withstand the sun without deterioration.
Installation: It is lightweight and available in larger rolls, which help facilitate faster installation.
Safety: It offers enhanced traction during installation, reducing the risk of slips and falls.

Felt Underlayment

Felt underlayment, or tar paper, has been the traditional choice for decades. Composed of fiberglass or polyester soaked in asphalt, felt underlayment is available in #15 and #30 grades. It offers time-tested reliability and cost-effectiveness favored by many homeowners. It also provides adequate protection and is suitable for various climates and roofing materials.

Its other advantages include the following:

Cost-Effectiveness: It is generally more affordable than synthetic underlayment.
Fire Resistance: It has superior fire resistance when combined with asphalt shingles.
Accessibility: It is widely available and familiar to most roofing contractors.

Considerations for Roof Replacement

When planning your roof replacement, it’s essential to weigh the short-term and long-term implications of your underlayment choice. While synthetic underlayment may entail a higher upfront cost, its longevity and durability could yield savings over time. Conversely, felt underlayment’s lower initial investment may require more maintenance or earlier replacement.

Home Pro Exteriors, Inc. provides expert advice and installation services for roof repair or replacement, ensuring your home remains protected for years to come. Trust our team to guide you through the process. Call us today at (845) 343-1777 or fill out our contact form to get started.

Jim Klein