Underlayment Options – Synthetic VS Peel & Stick

Just because you do not see it does not mean it is not essential, especially regarding roofing. Underlayment is a barrier between the roof and the plywood base that supports the entire roofing structure. Underlayment in the past may have gone unnoticed because there was generally only one kind that all fell in the same family, asphalt, tar paper, or felt. As things tend to be upgraded over time, more options were introduced. There are many underlayments, but synthetic or peel and stick are the most commonly used. Although these two underlayments are very similar, one may be superior to the other, depending on your project.

Peel & Stick

Peel and stick underlayments are made from a mixture of rubberized polymer blends and have become a popular choice among homeowners, especially in more hot and humid areas. This underlayment is most commonly used for flat roofing and low slope roofs.

A key feature of the peel and stick is its long life expectancy. Because of the rubberized poly blends, peel and stick are more durable and flexible, meaning they will last longer, are waterproof, and will not wrinkle. This underlayment is the choice for contractors as it does not require nailing and is sturdy, making for an easy installation.

As trusty as peel and stick is, there are a few things to consider. The peel and stick underlayment may be more cost-heavy, as each roll averages around $150, but it is worth the investment. Another downside to this underlay is that removing the peel and stick can be challenging as it is designed to be a permanent installation and, if done, can damage roof decking.

Synthetic Underlayment

Synthetic is very similar to peel and stick as the materials are almost identical. Still, each underlayment’s manufacturing process and thickness are fine-tuned to produce different properties.

A key factor to synthetic underlayment is how much roof a roll can cover. One roll can cover 1,00 square feet as peel and stick only covers around 200 ft of roofing. The fewer rolls needed make the installation easier labor-wise and almost twice as fast.

The installation process is similar to peel and stick as it is less slippery and stronger, but a different approach. Certain nails are used for this underlayment, but you can not use staples on this material. Cost-wise, this underlayment is more expensive than your old school felt, but it tends to be cheaper than peel and stick as it averages about $100 per roll.

Synthetic and peel and stick are a significant upgrade to felt or asphalt and are very similar but have a few minor differences. When choosing which underlay is best for your project, consider key factors such as slope, the base of your roof, and your home’s location. Need help choosing the right underlayment? Call us at (813) 643-8333 or request free quote.