How To Choose Roofing Underlayment?

Choosing the proper roofing underlayment installations is a critical decision, as it can make or break the overall performance of your roof. Whether replacing an old roof or installing one from scratch, selecting the best underlayment for your needs should always be top of mind. 

In this article, we’ll explain why and how to choose roofing underlayment so that you can make an intelligent choice for your home. 

First off, let’s consider what makes good underlayment in the first place. Is it all about quality and durability? Or are there other factors to consider too? 

We’ll discuss common materials used for underlayment and compare their strengths and weaknesses so that you know exactly what type will work best for your project. Additionally, we’ll provide tips on installation methods to ensure proper protection against moisture penetration. 

Finally, with this knowledge, readers can confidently select high-quality material when choosing their roofing underlayment system—guaranteeing long-term protection against water damage while also considering cost-effectiveness. 

So, if you want to learn more about choosing a suitable material at a reasonable price point without sacrificing quality or performance, keep reading!

What Is Roofing Underlayment and Its Benefits?

Roofing underlayment is an essential part of the roofing system. It’s a layer of material installed between the shingles and the rooftop deck or sheathing, providing an extra barrier against water infiltration. Not only does it provide additional protection from moisture, but it also helps to reduce air infiltration and improve energy efficiency in buildings.

Many benefits come with using a quality roofing underlayment. For one, it can help extend the life of your roof by protecting against ice dams during cold weather conditions and helping to prevent premature aging due to UV rays from direct sunlight exposure. 

Additionally, some types of underlayment offer superior noise reduction properties for those who live in noisy environments or want a quieter living space. An adequate underlayment will increase fire resistance and wind uplift protection on your home’s roof structure. 

When selecting a type of roofing underlayment for your home or business, there are several factors you should take into consideration, such as climate and environment where you live/work; budget; building codes; type/style of shingle being used; installation requirements; warranty coverage provided by manufacturer among other things. 

With so many options available today, it’s essential to research before making any decisions to maximize your investment while ensuring optimal performance over time.

Types of Roof Underlayment

  • Asphalt-Saturated Felt

The traditional roof underlayment, commonly referred to as asphalt-saturated felt, employs asphalt as its waterproofing agent instead of tar paper. 

This roofing underlayment has been utilized for generations to deliver sufficient moisture protection and insulation. However, it needs to improve the superior flexibility and durability provided by synthetic and rubberized asphalt roof underlayments.

  • Rubberized Asphalt

Rubberized asphalt stands out as an ideal solution that offers unparalleled waterproofing capabilities. To preempt any water damage concerns, it is prudent to incorporate this underlayment material in areas susceptible to leaks, including eaves, valleys, vents, chimneys, and skylights. 

The composition of this underlayment predominantly comprises rubber polymers and asphalt, although it may differ in varying products.

  • Synthetics

The latest addition to the roofing industry, synthetic underlayment, has been gaining popularity owing to its exceptional durability and tear-resistance capabilities. 

Typically crafted from woven or spun polyethylene or polypropylene, this underlayment variant trumps traditional saturated-asphalt underlayment in terms of reliability. 

While slightly pricier than asphalt-saturated felt, synthetic underlayment is still an economical alternative to rubberized asphalt underlayment, rendering it an appropriate choice for those who prioritize cost-effectiveness without compromising on durability

Factors To Consider When Selecting Roofing Underlayment

Choosing the proper roofing underlayment is essential to any roof construction or repair. It’s a critical layer between your home and the elements, providing insulation, protection from water damage restoring, and more. 

Understanding what to look for when selecting a roofing underlayment can help ensure it meets all your needs. When choosing an underlayment, there are several factors to consider. 

First and foremost is its ability to protect against water damage; some materials offer better waterproofing than others. It would help if you also considered durability; some materials may be more resistant to wear and tear over time. 

Finally, remember the cost. At the same time, cheaper options may seem attractive at first glance. Still, they might not offer long-term savings if they require frequent repairs or replacement due to their lower quality material. 

Choosing an underlayment that fits within the regulations of local building codes in your area is also essential. This will ensure that your project complies with all applicable laws and standards for safety and performance requirements for roofs in your region.

Additionally, consulting with a professional installer can help provide valuable insights into which type of material would best suit your specific needs – saving you both time and money down the line! 

With these considerations in mind, you’ll be well on your way toward finding the perfect roofing underlayment for your project – one that offers maximum protection without breaking the bank!

Additionally, suppose significant foot traffic on the roof will occur during installation or repair work. In that case, investing in additional layers of thicker underlayment can help prevent premature wear and tear due to excessive weight bearing down on it over time. 


In summary, roofing underlayment is an essential part of any roofing system. It adds an extra layer of protection against water and moisture damage while providing insulation to reduce energy costs. 

When selecting a roofing underlayment, you should consider the type of material used, its permeability rating, and how long it will last. Installing the right kind of underlayment can be tricky, but with proper planning and research, it can be done correctly. 

From my experience as a homeowner, investing in quality materials for your roof is one of the best decisions you can make for your home’s future. With so many options available today, there’s no excuse not to take advantage of what’s out there.

Water Damage and Roofing of Cedar Park
305 Spanish Mustang Dr
Cedar Park, TX 78613, United States