The roofing underlayment serves an important role in protecting your home from the weather, keeping the roof’s structure robust, and prolonging the roof’s lifetime. Extreme weather is common in Minnesota, so proper roofing underlayment is critical. This blog will discuss the different types of roofing underlayment used in Minnesota roofing projects and their unique features and benefits.

What Is Roof Underlayment?

Roof underlayment acts as a strong barrier against leaks. Because of its semi-breathable membrane, the sheeting allows air and humidity to escape. This feature protects the entire roof assembly by forming a seal at the points where flashing and asphalt shingles are tacked down.

There are three types of underlayment available:

  • Asphalt-Saturated Felt
  • Rubberized Asphalt
  • Synthetic

Asphalt-Saturated Felt Underlayment 

As a roofing underlayment, asphalt-saturated felt is frequently used in Minnesota. It is made up of a base material saturated with asphalt to enhance its waterproofing properties. The advantages of asphalt-saturated felt are as follows:

Water Resistance

The asphalt saturation acts as a moisture barrier, preventing water from entering and causing damage to your home.


This roof underlayment is well-liked due to its durable construction, long lifespan, and capacity to serve as a weather barrier.


This asphalt-saturated felt underlayment is a low-cost option that provides reliable protection. 

Rubberized Asphalt Roofing Underlayment

Rubberized asphalt is a premium choice that works admirably in harsh weather situations. It has more strength and flexibility since it is made up of asphalt combined with synthetic rubber polymers. Take a look at the following advantages of rubberized asphalt roofing underlayment:

Exceptional Waterproofing

Because of the rubberized composition’s exceptional waterproofing characteristics, it is ideal for places prone to severe rainfall or snowfall.

Temperature Resistance

Rubberized asphalt roofing underlayment is resistant to harsh temperatures and does not crack or warp, assuring long-term stability.

Noise Reduction

Rubberized asphalt roofing underlayment reduces outdoor noise, creating a more peaceful and comfortable living environment.

Impact Resistance

This roof underlayment is very impact resistant, protecting your roof from hail or falling debris damage.

Synthetic Roofing Underlayment

Due to its improved performance and versatility, synthetic underlayment has become increasingly common. It comprises polymer materials with improved durability and weather resistance, such as polyester or polypropylene. The following are the benefits of synthetic underlayment:


Compared to felt saturated with asphalt, synthetic roofing underlayment is lighter, making installation easier.

Tear Resistance

The roof underlayment will stay intact even in strong winds because of the synthetic composition’s outstanding tear resistance.

Moisture Control

This roof underlayment has greater water resistance, effectively preventing water infiltration and mold growth.

UV Resistance

Synthetic underlayment roofing is made to withstand prolonged sunlight exposure without deteriorating, offering long-lasting protection.

Water-Resistant vs. Waterproof Roof Underlayment 

When selecting the right front roof covering and membrane, it’s important to understand the difference between waterproof and water-resistant underlayment.

According to industry standards, waterproof materials prevent water intrusion under any conditions, whereas a water-resistant membrane acts as a moisture barrier to protect the roof deck. A water-resistant membrane, on the other hand, does not provide a reliable barrier against water leaks. Water intrusion around fasteners may still occur.

A water-resistant roofing underlayment does not form a strong watertight seal on nails, caps, or staples. As a result, a water-resistant roofing underlayment cannot prevent water leaks caused by shingle fasteners. Even if contractors use caps to seal the membrane, leaks can still occur.

The peel-and-stick underlayment used by our roofing company in Minnesota provides a truly waterproof barrier. The self-sealing properties of the rubberized asphalt roof underlayment benefit the roof assembly. A peel-and-stick underlayment seals installation punctures, unlike water-resistant membranes.

What Should You Consider When Choosing Roof Underlayment for Minnesota Roofing?

Choosing the best roofing underlayment for Minnesota roofing projects entails considering various factors to ensure optimal performance and protection. Understanding the key factors when choosing underlayment can help homeowners make informed decisions. Here are some important factors to consider:

Longevity and Durability

The roofing underlayment must be strong and long-lasting due to Minnesota’s severe weather. Look for underlayment products with a track record of being durable and resistant to impacts, ultraviolet (UV) radiation, and extreme temperatures. Selecting top-notch roofing underlayment types can increase the durability and overall effectiveness of your roof.

Climate and Weather Conditions

Minnesota is subjected to various weather conditions, including heavy snowfall, cold winters, and temperature fluctuations. It is critical to select underlayments specially designed to withstand these conditions. Consider underlayment options in cold climates that provide excellent thermal resistance, moisture control, and durability.

Roofing Material Compatibility

Underlayment requirements vary depending on the roofing material. Make sure the roofing underlayment options you choose will work well with the roofing material of your choice by taking this into account. To choose the roofing underlayment options that best suit the roofing material used in your project, speak with experts.

Budget and Cost-effectiveness

When choosing an underlayment material, keep your budget in mind. While it is critical to select a high-quality option, you must also ensure that it fits within your budget. Compare the prices of various underlayment materials to find the best balance of quality and affordability.

Local Building Codes and Regulations

Ensure the underlayment you select complies with Minnesota’s local building codes and rules. Local regulations may specify underlayment requirements, such as fire resistance or wind uplift ratings. It’s best to work with a reliable roofing company that knows the local building codes to ensure compliance.

What Role Does Roof Underlayment Play in Minnesota Roofing Energy Efficiency?

Roofing Underlayment serves a purpose other than weather protection in Minnesota roofing projects. It also plays an important role in increasing energy efficiency. Understanding how among other roofing materials, underlayment contributes to energy efficiency can help homeowners in making informed decisions when selecting the appropriate underlayment for their roofs. Here are some key considerations for underlayment’s impact on energy efficiency:

Moisture Control

Proper moisture control is critical for energy efficiency. Roofing underlayment acts as a moisture barrier, keeping moisture out of the top roof decking and lowering the risk of condensation. Roofing underlayment helps to maintain the effectiveness of insulation by controlling moisture levels and preventing energy loss due to moisture-related issues.

Thermal Barrier

The roofing underlayment is a thermal barrier between the roofing material and the supporting structure. Roofing underlayments help reduce heat transfer minimizing heat gain during hot summers and heat loss during chilly winters. This increases the home’s overall energy efficiency by reducing the workload on heating and cooling systems.

Airflow Regulation

Roofing Underlayment can help with airflow regulation within the roofing system. Proper airflow prevents heat buildup in the attic, which reduces the strain on air conditioning systems. Roofing underlayment contributes to a more energy-efficient home by ensuring adequate ventilation.

Insulation Enhancement

Insulated underlayment is one type of underlayment that offers more insulation capabilities. The insulating layer in these underlayments enhances the roof’s overall thermal performance. They contribute to improved energy efficiency and decreased energy consumption by lowering thermal bridging and heat loss through the roof. 

Energy Cost Savings

Proper roof underlayment installation can result in long-term energy cost savings due to improved energy efficiency. Homeowners can lower their energy bills and reduce their environmental impact by reducing the demand for artificial heating and cooling.


Choosing the proper roofing underlayment is critical for the longevity and durability of your roof, especially in Minnesota’s harsh climate. Whether you select traditional asphalt-saturated felt, versatile synthetic underlayment, or premium, rubberized asphalt underlayment, each type has its advantages. A professional roofing company will help you determine the best underlayment for your needs and budget.

Call Us Today

Are you considering a roofing project in Minnesota? Contact our knowledgeable roofing team today for expert guidance and installation. We’re here to help you choose the proper underlayment and keep your roof in good shape for years. Call us immediately to schedule a consultation and begin your roofing journey.

Roofing Company Lino Lakes, MN