Underlayment
The Importance of Roof Underlayments
A strong, reliable roof starts from the layer you don’t see — the underlayment. At Roofworks, we know that a high-quality underlayment is critical to your roof’s long-term performance, especially in South Florida’s harsh, humid climate.
The underlayment acts as your roof’s hidden shield, creating a waterproof barrier between your roofing materials and your home’s structure. It prevents leaks, protects your attic and insulation from moisture, and adds an extra layer of defense against South Florida’s intense rain, wind, and heat.
While picking roof colors and styles might seem like the fun part of a roof replacement, the right underlayment is what keeps your home dry, efficient, and protected for years to come.
Contact us online to schedule your free roofing consultation.
What Is a Roof Underlayment?
A roof underlayment (sometimes called a sub-roof or membrane) is the waterproof layer installed directly on your roof deck before the outer material — such as shingles, tiles, or metal panels — is applied.
This layer serves as your roof’s first line of defense against moisture, providing protection during installation and long after your roof is complete. Even if wind or debris dislodges a tile or shingle, your underlayment continues to protect your home from leaks and water intrusion.
Types of Underlayments We Install
At Roofworks, we use only advanced, modern underlayments that provide maximum durability and performance in Florida’s weather.
Modified Bitumen Underlayment
Our most popular system, modified bitumen, is made with specially treated asphalt compounds that increase flexibility, weather resistance, and adhesion. It creates a durable, watertight seal that stands up to high winds, heat, and humidity — making it ideal for South Florida homes.
TPO Roofing Membrane
TPO (Thermoplastic Polyolefin) is a single-ply roofing system commonly used for flat or low-slope roofs. It offers outstanding protection against UV rays, heat, and algae growth while providing superior energy efficiency and a long service life.
Whether you’re replacing your roof or building new, our experts will recommend the best underlayment for your home’s design, slope, and budget.
Benefits of a High-Quality Underlayment
Investing in a premium underlayment offers several long-term advantages:
- Waterproof Protection: Prevents leaks and water infiltration, even when outer roofing materials are damaged.
- Extended Roof Lifespan: Reduces stress on shingles or tiles by regulating temperature and moisture levels.
- Improved Energy Efficiency: Adds insulation to help maintain indoor comfort and reduce energy costs.
- Added Storm Defense: Provides a critical secondary barrier during hurricanes or tropical storms.
- Peace of Mind: Protects your home and possessions, even between storm damage and repair.
Roofing System Costs
Your roof’s underlayment cost depends on several factors, including:
- Roof size and complexity
- Number of vents, skylights, or pipes
- Type of underlayment material selected
- Condition of existing roof decking
At Roofworks, transparency is everything. We’ll perform a detailed evaluation, explain all your options, and provide an accurate, itemized estimate so you know exactly what to expect before any work begins.
Durability That Lasts
Modern synthetic underlayments are engineered to handle Florida’s toughest weather — from heavy rain to high winds and relentless sun. Even if your roof’s surface takes damage, a properly installed underlayment will keep water out and your home protected.
Our preferred choice, modified bitumen, adheres tightly to your roof deck for a watertight seal, while TPO membranes offer extra flexibility and UV resistance — perfect for coastal and low-slope applications.
Our Trusted Roofing Partner: Polyglass USA
At Roofworks, we believe in using only the best materials from trusted industry leaders. That’s why we partner with Polyglass USA, a globally recognized manufacturer of high-performance roofing systems since the 1960s.
With Polyglass products, our clients receive roofing systems that are tested, certified, and built to last, ensuring your roof delivers the long-term protection your home deserves.
The Roofworks Commitment
When you choose Roofworks, you’re not just getting a roof — you’re getting a system designed for durability, energy efficiency, and peace of mind. Our licensed, insured team installs every underlayment to meet or exceed Florida Building Code standards, ensuring your home is fully protected from the ground up.
Contact us online to schedule your free roofing system evaluation.
Schedule Service
(954) 806-6116