How Much Do You Know about Roof Rubber Underlayment?

The roof system is much more than what your eyes see. Assuming that you have a shingles roof, you also have an underlayment – whether you know it or not. This is used for higher protection and since its role is important, there are three main underlayment types.

At the top of this small list stands the rubber underlayment. It’s considered the best roof underlayment on the market and so you may want to know about it, particularly if you intend to replace your roof.

What is rubber underlayment?

Roof_Replace_1Let’s take a step back and before we talk about the rubber roof underlayment, let’s talk about roof underlayment in general. Shall we? As its name implies, this is one layer of the roofing system that comes under the shingles. So, this is not something you can see. Its basic role is to keep the home dry and for this reason, the materials used for the manufacturing of roof underlayment are water-resistant.

The underlayment is placed on the roof deck to act as the barrier and protect the home while keeping it comfortable. It’s one more layer of protection from leaks and all elements. It becomes the main protection when shingles break or sealants snap and there’s nothing much to protect your home from the elements.

Now that we established the meaning and purpose of roof underlayment, let us focus on those made of rubber. As we said, the rubberized asphalt underlayment is one of the 3 main types available on the market right now. It’s called like that because it feels like rubber.

Rubberized asphalt roof underlayment types contain asphalt polymers and rubber. Hence, the name. And so, it’s particularly strong and resistant. No wonder it’s found at the top of the list and is also the most expensive one. It really protects. Plus, one side has a protective membrane which is peeled before installation and the material adheres. And thus, it better protects, especially in areas where water pools – like valleys.

Why the rubberized asphalt underlayment makes a difference

To understand the high durability and resistance of rubber roof underlayment, you need to compare them with the other two choices. So, let us give you a brief description of the other two roof underlayment options.

•   For many years, the prevailed roof underlayment was asphalt-saturated felt. This material is a blend of asphalt, cellulose, and polyester. This underlayment is often mounted with plastic caps and it is fine for sloped roofs since water drains easily and doesn’t pool. That’s because asphalt provides water resistance but felt paper is not water resistant. And so, it’s not recommended for roofs where water can infiltrate. And here you can understand the superiority of the rubber underlayment, which is completely water resistant.

•   Synthetic underlayment is another choice – a good choice since the synthetic material is saturated in asphalt and becomes particularly strong with the addition of fiberglass. It’s lightweight and that’s important for the roof deck, resistant to UV, strong, mold resistant, and waterproof.

The advantage of the rubber asphalt roof underlayment

•   Rubber underlayment leads water that found its way under the shingles straight to the rain gutters and so prevents roof damage, mold growth, and other problems that would demand costly repairs.

•   Thanks to the way the underlayment is processed, it’s also heat resistant. And so, it’s fire-resistant too. This way, the home is further protected due to the fire retarding quality of the material.

•   Since the material is particularly durable and resistant, it also has a very long lifespan. You may need to replace it when you will start looking for a roof replacement. And that’s good for your budget and peace of mind. That’s to say that if the underlayment can last as long as your asphalt shingles roof, it means that it can really protect your home. And that’s the whole meaning of having a roof underlayment.