Synthetic Roofing Underlayment vs. Felt Underlayment

Synthetic Roofing Underlayment vs. Felt Underlayment

When it comes to roofing, there are a lot of different materials to choose from. One of the most important decisions you'll make is what type of underlayment to use. Underlayment is the material that goes between your roof decking and your shingles, and it provides an extra layer of protection from the elements.

There are two main types of underlayment: synthetic and felt. Both have their own advantages and disadvantages, so it's important to choose the right one for your needs.

Synthetic Underlayment

Synthetic underlayment is made from a variety of materials, including fiberglass, polyester, and polyethylene. It's typically more expensive than felt underlayment, but it's also more durable and water-resistant. Synthetic underlayment is also less likely to tear, which can be a major advantage in windy areas.

Felt Underlayment

Felt underlayment is made from recycled paper and asphalt. It's less expensive than synthetic underlayment, but it's also less durable and water-resistant. Felt underlayment is more likely to tear, and it can absorb water, which can lead to mold growth.

Which Type of Underlayment is Right for You?

The best type of underlayment for you will depend on your specific needs and budget. If you live in an area with high winds or heavy rains, synthetic underlayment is a good choice. If you're on a tight budget, felt underlayment may be a better option.

Here is a table that summarizes the key differences between synthetic and felt underlayment:

Feature Synthetic Underlayment Felt Underlayment

Durability More durable Less durable

Water-resistance More water-resistant Less water-resistant

Tear resistance More tear-resistant Less tear-resistant

Mold resistance More mold-resistant Less mold-resistant

If you're looking for a durable, water-resistant, and tear-resistant underlayment that is also resistant to mold growth, then synthetic underlayment is the best option for you.

Here are some additional benefits of using synthetic underlayment:

  • Lightweight: Synthetic underlayment is much lighter than felt underlayment, which makes it easier to install and less likely to tear.

  • Easy to work with: Synthetic underlayment is easier to work with than felt underlayment, especially in wet conditions.

  • Safer: Synthetic underlayment is safer to work with than felt underlayment, as it is less likely to slip and fall.

If you are considering replacing your roof, or if you are building a new home, then you should consider using synthetic underlayment. It is the best option for protecting your roof from the elements and for ensuring the safety of your roofers. At LAB Exteriors, we use synthetic underlayment for ALL asphalt roof installs, we want your roof to last for as long as you own your home.

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