Why Delta IIC is the Only Sound Rating That Matters for Your Second-Floor Tile

Jenniffer Goulart • November 21, 2025

Navigating the Noise: The Truth About Sound Control in Multi-Story Homes


If you're planning a tile installation on a second floor, in a condo, or any multi-story property here in Southwest Florida, you've likely heard terms like "IIC" and "STC" thrown around. While these numbers are important, they often don't tell the full story about how your new floors will impact the noise levels in your home, and more importantly, in the unit below you.

At Style Home Remodeling, we believe in complete transparency and using the right materials for a truly stress-free and luxurious remodel. That's why we rely on advanced underlayments like Mapei Mapeguard 2, and why we want you to understand the crucial rating that truly matters: Delta IIC.


IIC vs. STC: Quick Definitions (What They Are)


Before we get to Delta IIC, let's quickly demystify the two common sound ratings:

  • IIC (Impact Insulation Class): This measures how well a floor assembly (your tile, thin-set, and underlayment) blocks impact noise from traveling to the room below. Think footsteps, dropped items, or moving furniture. A higher number means better blocking.
  • STC (Sound Transmission Class): This measures how well a floor assembly blocks airborne noise from traveling to the room below. Think voices, music, or a TV. Again, a higher number means better blocking.

While both are crucial, especially in condos with strict HOA rules, they measure the total sound reduction of the entire floor system. They don't specifically tell you how much work your underlayment is doing.


Why ΔIIC (Delta IIC) is the ONLY Rating That Truly Matters for Your Underlayment


The Delta IIC (ΔIIC) rating is a more precise and honest measurement. It tells you exactly how much the underlayment itself improves the impact sound isolation of the floor assembly.

Think of it this way:

  • IIC/STC is the final grade of the entire class.
  • Delta IIC is the grade of just the underlayment's performance.

A high Delta IIC number means your underlayment is an active, superior barrier against impact sound, not just a passive layer. This is vital for homeowner comfort and crucial for meeting strict HOA requirements without major structural changes.


Mapeguard 2: The Sound-Proofing Powerhouse We Trust


At Style Home Remodeling, when it comes to guaranteeing superior sound reduction and floor protection, we choose Mapei Mapeguard 2. This isn't just an underlayment; it's a 4-in-1, 40-mil peel-and-stick membrane that delivers unparalleled performance.

Here's why Mapeguard 2 excels in the Delta IIC category:

  • Superior ΔIIC Rating: Mapeguard 2 consistently achieves a Delta IIC rating in the range of 28-29. This means it dramatically reduces impact noise by nearly 30 points, making a massive difference in sound transfer to the floors below.
  • 4-in-1 Protection: Beyond its acoustic properties, Mapeguard 2 provides:
  1. Crack Isolation: Protecting your tile from subfloor movement.
  2. Waterproofing: Essential for bathrooms, kitchens, and Florida humidity.
  3. Vapor Control: Preventing moisture from the slab from damaging your flooring.
  • Easy, Reliable Installation: As a peel-and-stick membrane, it ensures consistent application, which is key to achieving its certified performance.


Jenniffer's Expert Take:


"We use Mapeguard 2 on so many of our second-floor and condo projects here in Fort Myers," says Jenniffer, our Project Manager at Style Home Remodeling. "Clients often come to us after their HOA requests specific sound numbers. Mapeguard 2 is our go-to because it's a proven performer. It eliminates the need for bulky, multi-layer systems, saving our clients time, hassle, and guaranteeing those crucial sound standards are met."


Don't Risk Costly Re-dos or HOA Fines


Choosing the right underlayment is more than just comfort; it's a compliance and cost-avoidance measure. Underestimating sound requirements can lead to:

  • HOA Fines: Many associations have strict rules for flooring materials on upper levels.
  • Project Delays: Having to tear out and re-install a floor due to non-compliance.
  • Unhappy Neighbors: Which is the last thing you want in your newly renovated home!

When you partner with Style Home Remodeling, you're not just getting a beautiful new floor; you're getting peace of mind. We meticulously select and install materials like Mapeguard 2 to ensure your remodel is compliant, comfortable, and lasts for years to come.


Ready to discuss your next project?

Visit our showroom or call today for a free estimate. Let's ensure your new floors sound as good as they look!

📍 11519 Charlies Ter, Fort Myers 📞 (239) 222-7874

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How Much Does a Bathroom Remodel Cost in 2025? (Real Price Guide + Examples)

October 28, 2025
If you’re planning a bathroom remodel in 2025, one of the first questions you’re probably asking is: “How much does a bathroom remodel actually cost?” The truth is, remodel prices vary depending on bathroom size, materials, and labor—but this guide breaks down real 2025 cost data so you can plan your project confidently and avoid surprises.

Luxury Vinyl Plank Flooring: The #1 Flooring Choice for Southwest Florida Homes (And Where to Buy It)

By Jenniffer Goulart • August 25, 2025
Looking to buy LVP flooring in SWFL? Learn why luxury vinyl plank is perfect for Florida homes and how to choose the best type for your space.

Explore Different Hardwood Flooring

By Alyssa Stoner • April 16, 2025
Hardwood flooring is a feature of elegance and style for any home. Its versatility makes it a popular choice for homeowners trying to enhance the aesthetic appeal and value of their home. With a wide range of hardwood types available, each having unique characteristics and benefits, selecting the perfect one can be an intimidating task. However, the market is open to many possibilities and an expert flooring installer will guarantee an amazing end result. Solid flooring is a classic choice; crafted from a single piece of wood. This option just screams authenticity and character. Popular for its stability, solid hardwood floors can withstand for years and years; making them an exceptional long-term investment. In addition, they can be refinished multiple times and change as trends evolve. However, it’s important to understand that solid hardwood is vulnerable to moisture damage and can be a more expensive option upfront. Due to its sensitivity to humidity, its best suited for areas with less foot traffic such as bedrooms and hallways. Engineered hardwood flooring is a modern alternative to solid flooring. Constructed with a layered design, it features a thin coating of real hardwood above layers of plywood or dense fiberboard. This creative structure enhances moisture resistance, making engineered hardwood a practical option for areas prone to humidity changes such as kitchens. In addition, the layering allows wider plank options and makes a more spacious feel. While engineered hardwood is easier to put in than solid hardwood, refinishing is possible to a certain extent. The choice of wood significantly impacts the overall visual and performance of your hardwood floors. Popular options include oak, maple, walnut and hickory. Oak is known for its durability and diverse grain patterns, and is an adaptable choice for many homes. Maple; with its smooth grain and light color lends a contemporary feel. Walnut is popular for its rich, dark tones, and portrays luxury and sophistication. Finally, hickory has dramatic grain patterns and adds a rustic charm. Consider the stability, patterns, and color tones of different wood styles to find one that goes with your space. Finally, evaluate your lifestyle, budget and décor to narrow down your choices! If you have a busy household with pets and children, go for durable flooring like oak or hickory. If you’re working with a limited budget, engineered hardwood might be a more cost-effective choice. Also, consider the specific room where the flooring will be installed. For high-traffic areas, prioritize durability and scratch resistance. In moisture-prone areas, select engineered hardwood.  www.stylehomesremodeling.com (239)-222-7874
A living room with a table , chairs , and stools.

Light Vinyl Flooring Is Perfect For Your Home

By Alyssa Stoner • April 15, 2025
Light, luxury vinyl is popular among Florida locals or seasonal homeowners because it represents the ‘feel’ of Southwest Florida to go along with the different colors of blue, yellow, white, beige, etc. In most cases, homes with dark, rustic hardwood expresses more of a northern-style.