ROCKWOOL RXCB5523 COMFORTBATT R23 5.5 in. X 23 in. X 47 in (37.53 SQFT)
A person wearing gloves installs ROCKWOOL RXCB5523 COMFORTBATT R23 insulation in a house under construction, with exposed wood framing and a ladder in the background. At the bottom, a customer testimonial for Rockwool is displayed.
Shown against a red background, the ROCKWOOL RXCB5523 COMFORTBATT R23 (5.5"x23"x47", 37.53 sq ft) highlights its mineral fiber insulation made from natural basalt rock and recycled slag for high performance and sustainable energy savings.
ROCKWOOL RXCB5523 COMFORTBATT R23 5.5 in. X 23 in. X 47 in (37.53 SQFT)
ROCKWOOL RXCB5523 COMFORTBATT R23 5.5 in. X 23 in. X 47 in (37.53 SQFT)

“Rockwool stone wool insulation is an excellent choice for improving home comfort and safety. It’s fire-resistant, water-repellent, and blocks noise effectively.”

ROCKWOOL RXCB5523 COMFORTBATT R23 5.5 in. X 23 in. X 47 in (37.53 SQFT)

Why is Rockwool stone wool insulation good for damp and noisy areas?
Because it resists water and mold, and its dense fit absorbs sound well.

Fire-resistant and non-combustible

Water and moisture resistant

Excellent sound absorption

Made with 93% recycled natural stone

Easy to cut and fit around obstacles
SKU: RXCB5523 | UPC: 774783435617
$73.48
$89.80

  • Free shipping over $6000 nationwide

  • Enjoy or return within 30 Days

We Accept

30 Days Easy Returns

Read More

“Rockwool stone wool insulation is an excellent choice for improving home comfort and safety. It’s fire-resistant, water-repellent, and blocks noise effectively.”

How To Use

How to Use Rockwool Stone Wool Insulation
1/ Unpack Carefully  Remove the insulation batts from the package and let them expand naturally.
2/ Measure & Cut  Use a serrated knife to cut the batts to fit around pipes, doors, or electrical outlets.
3/ Place & Fit  Insert the insulation snugly into walls, ceilings, or floor cavities. The friction fit holds it firmly in place without sagging.
4/ Finish & Seal  Seal gaps if necessary and cover with drywall or desired finishing material. You're done!

Description

Rockwool insulation is a rock-based mineral fiber insulation comprised of Basalt rock and Recycled Slag. Basalt is a volcanic rock which is abundant in the earth, and slag is a by-product of the steel and copper industry. The minerals are melted and spun into fibers.

Feature

1. Fire-Resistant  Non-combustible and delays the spread of fire for enhanced home safety.
2. Water & Moisture Resistant  Repels water, preventing mold, mildew, and bacterial growth.
3. Excellent Sound Absorption  High-density material reduces noise between rooms for a quieter living space.
4. Eco-Friendly Composition  Made from natural stone and up to 93% recycled materials.
5. Easy to Install  Cuts easily with a serrated knife and fits snugly without sagging.
6. Long-Lasting Performance  Chemically inert and durable, it won’t rot or degrade over time.

Safe, Durable, and Quiet

Enhance your home’s comfort and safety with insulation that resists fire, moisture, and noise while being eco-friendly.

Fire-Resistant Safety

Non-combustible material delays fire spread, protecting your home and loved ones.

Moisture & Mold Resistant

Repels water and prevents growth of mildew, fungi, and bacteria for a healthier environment.

Superior Sound Absorption

High-density stone wool reduces noise transfer, creating quieter, more comfortable spaces.

Eco-Friendly Composition

Made from natural stone and up to 93% recycled materials, supporting sustainable living.

Reliable Comfort and Safety

Designed to protect your home with superior fire resistance and moisture control.

Fire and Water Protection

This insulation is non-combustible and water-resistant, helping to prevent fire hazards and moisture damage in your home.

Noise Reduction

With its high-density and tight friction fit, it effectively absorbs sound, creating a quieter and more comfortable space.

Efficiency You Can Trust

Clinically proven collagen for smoother skin, stronger hair, and pain-free joints—backed by a 90-day money-back guarantee.

The insulation significantly improved their home’s noise reduction.

Appreciate its easy installation and ability to fit around pipes and doors.

Satisfied with its fire resistance and moisture protection qualities.

Experience the Benefits

Enhance your home’s safety, comfort, and sustainability with insulation designed for lasting performance.

Exceptional Fire Resistance

Made from natural stone, this insulation won’t catch fire and helps delay the spread of flames, giving you crucial extra time in emergencies.

Mold Protection

Its water-repellent nature stops moisture buildup, preventing mold, mildew, fungi, and bacteria from damaging your home or affecting your health.

Outstanding Sound Absorption

The dense, friction-fit batts reduce noise transfer between rooms, creating quieter, more comfortable living spaces.

Eco-Friendly & Durable

Contains up to 93% recycled stone and basalt, making it a sustainable choice that won’t sag or degrade over time.

Fire safety assured

Eco-friendly materials used

Moisture resistance guaranteed

Long-lasting insulation quality

Easy installation process

How to Use

Simple steps to ensure a perfect fit for maximum comfort, safety, and efficiency in your home.

Measure and Cut

Measure the space carefully and cut the insulation batts with a serrated knife to fit around doors, pipes, and electrical wiring.

Fit and Press

Place the batts snugly into wall cavities, ceilings, or floors, ensuring a tight friction fit with no gaps or sagging.

Seal and Finish

Seal any joints or edges if needed, then cover with drywall or your chosen finishing material to complete installation.

What Our Customers Are Saying

Real experiences and feedback from users who trust Rockwool Stone Wool Insulation for their homes.

VIEW ALL

“Outstanding Noise Control! This Rockwool insulation transformed my home by significantly reducing noise between rooms. The high-density material fits perfectly and was easy to cut and install.”

“Reliable Fire Safety! I feel much safer knowing this insulation is non-combustible and delays fire spread. It’s a quality product that provides excellent peace of mind without any complicated installation process.”

“Excellent Moisture Barrier! I installed this insulation in my basement, and it completely stopped mold and damp smells. Its water resistance and mold prevention features make it ideal for damp areas.”

Frequently Asked Questions

1. Is Rockwool insulation fire safe?

Yes, it is non-combustible and designed to delay the spread of fire, enhancing home safety.

2. Can I install Rockwool insulation myself?

Absolutely! It’s easy to cut with a serrated knife and fits snugly in walls, ceilings, and floors.

3. Does Rockwool insulation resist moisture?

Yes, it repels water and prevents the growth of mold, mildew, fungi, and bacteria.

4. Is this insulation environmentally friendly?

Yes, it contains up to 93% recycled natural stone and basalt, making it a sustainable choice.

5. Will Rockwool insulation help reduce noise?

Definitely. Its high density and friction fit reduce sound transfer between rooms for better comfort.

Fast & Reliable Delivery

Orders are processed quickly and shipped with trusted.

Secure Payment Options

We accept multiple payment methods secure online payment.

Easy Tracking & Support

You’ll receive a tracking number to monitor your order.

You May Also Like

Explore more products designed to enhance your home’s comfort, safety, and efficiency.

Faster, Smarter, and More Affordable Than Ever

Experience lightning-fast delivery, expert guidance, and unbeatable prices — all in one place.