Underlayment serves as the foundation of your roofing system. So, which underlayment is best for tile roofs?
What Is The Best Underlayment For Tile Roofs?
For decades, roofers have been using felt paper as a type of underlayment whenever a replacement is necessary. Felt is a great option for both residential and commercial needs, but it doesn’t necessarily mean this is the only type of underlayment you should use. Let’s take a look at three of the best tile roof underlayment options on the market today.
1. Roofing Felt
Roofing felt is a type of felt paper that gets soaked in asphalt and other water-resistant mixtures, which produces a membrane. Felt is typically sold in 15# or 30# rolls, measuring 36 inches wide.
2. Synthetic Underlayment
This underlayment type was originally designed as a replacement for felt. Synthetic underlayment is woven together with polymer and polypropylene, helping to create a vapor and water-resistant underlayment type. Synthetic is stronger and lighter than roofing felt.
Here are some of the biggest benefits of installing synthetic underlayment:
- Great with metal roofing.
- Lightweight.
- Durable against high winds.
- Safe to walk on while installing shingles.
- Vapor and water-resistant.
3. Rolled Roofing Underlayment
Rolled roofing underlayment tends to be the longest-lasting tile underlayment. This stand-alone roofing system can increase the durability and overall lifespan of the roof. Rolled roofing is typically seen as the best underlayment option. It can be easily installed directly on the decking before any standard roofing type.
Reasons For Underlayment
To figure out which type of underlayment will work best for your situation, it’s crucial to understand what underlayment can and cannot do.
- Vapor protection.
- Temporary protection after storms.
- Water-resistant, yet not waterproof.
- Protection from resins in the decking.
Standard shingles, for example, will not need the same degree of vapor protection as metal or slate roofing. A common misconception is that underlayment is waterproof. It is water-resistant, but not self-sealing. This means water can sneak through any holes a nail has created.
How Much Does Synthetic Underlayment Cost?
Most roofing quotes will use 15# felt as the base option, meaning there are no additional costs when it comes to felt. A quality felt roll will generally cost between $25-$35 to cover a total of 450 square feet. Underlayment prices can vary between quality, brands and job applications.
Average Cost To Replace Tile Roof Underlayment
The average tile underlayment costs about $436 in the U.S. in 2022. $436 multiplied by 24 squares equals an average of $10,464 for tile underlayment replacement.
How Often Should I Replace Tile Underlayment?
While the tiles on your roof may never completely wear out, the material the tile rests on may wear out every 8-20 years. At this point, it is time to consider replacing the underlayment.
George & Alex Roofing and Waterproofing in New York
At George & Alex Roofing and Waterproofing, we know choosing a Roofing Contractor in the New York Area is a tough job. We are here to help make it easier! Locally owned and operated, George & Alex Roofing and Waterproofing has been providing roof installation and roof repairs throughout the surrounding New York areas since 1995. With each new roofing project, we strive to provide professional, timely service at a fair price. Contact George & Alex Roofing and Waterproofing right here!
