Top-Rated Underlayment Materials for Metal Roofing

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Jul 11, 2025 - 10:35
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Top-Rated Underlayment Materials for Metal Roofing
New York Roofing services

When it comes to installing a metal roof, selecting the right underlayment is just as crucial as choosing the metal panels themselves. The underlayment serves as the roofing systems foundation, protecting the structure from moisture, improving energy efficiency, and ensuring the longevity of the metal roof. If you're a property owner seeking the best solutions for your metal roof and searching for trusted roofing services near me, this guide from your local New York Roofing Company offers insights into the top-rated underlayment materials for metal roofing.


Why Underlayment Matters for Metal Roofing

Underlayment acts as a secondary barrier beneath your metal roof. Even the best-installed metal panels can allow minor water infiltration, particularly during storms or snow melts. A high-quality underlayment prevents moisture damage, wood rot, mold growth, and insulation issues. It also provides an extra layer of protection against ice dams, condensation, and extreme weathercritical factors for homeowners in New Yorks diverse climate.

That's why professional New York roofing contractors prioritize selecting the most suitable underlayment based on roof slope, climate conditions, and roofing system design.


Types of Underlayment for Metal Roofs

There are three main types of underlayment used in metal roofing systems. Each has unique characteristics and performance benefits. Below, we explore each type to help you make an informed decision.


1. Synthetic Underlayment

Overview:
Synthetic underlayment is made from woven or spun polypropylene or polyethylene. It's one of the most popular choices for metal roofing due to its strength, lightweight nature, and superior resistance to water and UV damage.

Benefits:

  • Tear-resistant and durable

  • Lays flat and doesn't wrinkle

  • UV-resistant (can be exposed for weeks)

  • Safer for roofers to walk on during installation

Use Case:
Ideal for steep-slope metal roofs and climates like New York, where wind-driven rain and snow are common. Many New York Roofing services prefer synthetic underlayment for both residential and commercial metal roofing systems.


2. Felt (Asphalt-Saturated) Underlayment

Overview:
Felt underlayment, also known as tar paper, is a traditional choice. Its made by saturating a fiberglass or organic mat with asphalt.

Benefits:

  • Economical option

  • Available in 15 lb and 30 lb weights

  • Provides basic moisture protection

Drawbacks:

  • Can wrinkle or tear easily

  • Not UV-resistant

  • Heavier and more difficult to install compared to synthetics

Use Case:
Best used as a budget-friendly option for low-slope residential roofs with minimal exposure to extreme conditions. Experienced New York roofing contractors may use felt for temporary or secondary projects.


3. Self-Adhering (Peel-and-Stick) Underlayment

Overview:
This underlayment features a rubberized asphalt or butyl adhesive layer. It is applied directly to the roof deck, creating a watertight seal.

Benefits:

  • Excellent for ice and water protection

  • Seals around fasteners and nails

  • Ideal for valleys, eaves, and flashing areas

  • Superior adhesion to the deck

Use Case:
Highly recommended for areas prone to heavy snow, ice dams, or wind-driven rainconditions typical in New York. Its often used in combination with synthetic underlayment for maximum coverage. New York Roofing services frequently apply peel-and-stick underlayment at vulnerable roof areas for extra protection.


Best Practices for Underlayment Installation

Whether you're hiring a New York Roofing Company or evaluating a roofing bid, its important to understand best practices when installing underlayment under a metal roof:

  1. Ensure Clean Roof Decking Underlayment should be applied to a dry, smooth deck free of debris and moisture.

  2. Overlap and Fasten Properly Maintain consistent overlap (usually 46 inches) and use appropriate fasteners per manufacturer instructions.

  3. Combine Products When Necessary In regions with harsh winters, contractors often use a combination of synthetic and peel-and-stick underlayment for superior protection.

  4. Ventilation Is Key Proper attic ventilation helps control condensation buildup under metal roofs.

Hiring skilled New York roofing contractors ensures that these best practices are followed for a long-lasting installation.


What Underlayment Material Do Experts Recommend?

Top New York Roofing services recommend synthetic underlayment for most metal roof installations due to its durability, walkability, and weather resistance. However, for added protection in cold or high-moisture areas, combining it with self-adhering underlayment at critical sections of the roof is ideal.

Here are some popular underlayment brands known for quality:

  • GAF Tiger Paw Durable synthetic underlayment

  • Grace Ice & Water Shield High-performance peel-and-stick

  • Deck-Armor Breathable synthetic underlayment

  • RhinoRoof UV-resistant and easy to install

Be sure to ask your New York Roofing Company about the underlayment brand and material they plan to use. Quality underlayment is a key factor in how long your roof will last.


Cost of Metal Roofing Underlayment

The price varies depending on the material:

Underlayment Type Average Cost (per sq. foot)
Synthetic $0.15 $0.50
Felt $0.05 $0.15
Peel-and-Stick $0.50 $1.00+

While synthetic and peel-and-stick are more expensive upfront, they offer long-term benefits in terms of durability and protection, especially in New York's unpredictable weather.


Conclusion: Choose the Right Underlayment with Expert Help

Selecting the top-rated underlayment material for metal roofing is a decision that directly impacts your roofs performance, lifespan, and your peace of mind. Given New Yorks weather challenges, investing in high-quality underlayment and expert installation from a trusted New York Roofing Company is essential.

Whether you're building a new home, replacing an old roof, or upgrading to metal roofing, work with certified New York roofing contractors who understand how to protect your home from the foundation up.

Looking for roofing services near me? Contact our experienced team today for a consultation and quote on the best underlayment solutions tailored to your metal roofing needs.

nyroofingcompany Providing expert NY roofing services and repairs – trusted NY roofing contractors with decades of experience. Visit our New York Roofing Company website for more.