Rockwool Comfortbatt R23 (All Sizes) Rockwool
Rockwool Comfortbatt R23 (All Sizes) Rockwool
Rockwool Comfortbatt R23 (All Sizes) Rockwool
Rockwool Comfortbatt R23 (All Sizes) Rockwool
Rockwool Comfortbatt R23 (All Sizes) Rockwool
Rockwool Comfortbatt R23 (All Sizes) Rockwool
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Rockwool Comfortbatt R23 (All Sizes)

SKU: RC-R23-1

Est Delivery between and .

Estimated Delivery Time 7-8 Weeks

If you require delivery to ID, MT, OR or WA, please select that delivery zone as pricing and delivery to those states may vary.


Rockwool COMFORTBATT Thermal Home Insulation keeps your home warm in the winter and cool in the summer for more comfortable living all year 'round. Installing also helps you save money year after year by reducing the cost of your heating and air conditioning and a house that uses less energy is a house that’s easier on the environment.

Size Sq Ft/Pack Batts Per Bag
23" x 47" 37.5 5
15.25" x 47" 39.8 8

Where to Use Rockwool COMFORTBATT

Energy savings begin with a properly insulated attic and exterior walls but there are other applications that can make a big difference in your home's comfort. Insulating the exposed concrete walls in your basement and heated crawl spaces are effective ways to improve the energy efficiency of your home.


Insulation is easy to cut and install. Its unique stonewool composition, density, and friction-fit batts help you or your contractor prevent any gaps that can result in energy loss.

R-Value: 23


Other Related Products

Rockwool Comfortbatt R30 (All Sizes): Designed for superior thermal and acoustic performance, the Comfortbatt R30 provides excellent insulation for residential and commercial applications.

Rockwool Comfortbatt R15 (All Sizes): Offering effective thermal and sound insulation, the Comfortbatt R15 is an ideal choice for energy-efficient building projects.

Rockwool AFB Acoustic Fire Batt 24 in x 48 in (All Sizes): This versatile product combines acoustic performance and fire resistance, making it suitable for soundproofing and fire-rated applications.

Rockwool AFB Acoustic Fire Batt 16 in x 48 in (All Sizes): Similar to the larger-sized AFB batts, this product provides excellent acoustic and fire-resistant properties for various construction needs.

Knauf EcoRoll R-13 Unfaced Fiberglass Insulation Roll: This unfaced fiberglass insulation roll from Knauf provides thermal and sound insulation for residential and commercial applications.

Owens Corning EcoTouch R21 Paperfaced FastBatts (All Sizes): Owens Corning's EcoTouch FastBatts feature a paper-facing for easy installation and excellent thermal performance.

Owens Corning EcoTouch R20 Paperfaced 5.5 in x 15 in x 93 in Batts in Bag Insulation: These paper-faced batts from Owens Corning offer thermal insulation for various framing applications.

Owens Corning EcoTouch R20 Wood Framing Unfaced Batt (All Sizes): This unfaced batt insulation by Owens Corning is specifically designed for wood-framed constructions.

Owens Corning EcoTouch R21 Unfaced Batts (All Sizes): These unfaced batts provide high-quality thermal and acoustic insulation for a wide range of applications.


Frequently Asked Questions

What is the R-value of Rockwool Comfortbatt R23? The R-value of Rockwool Comfortbatt R23 varies depending on the thickness. Please refer to the product specifications for detailed R-value information.

Can Rockwool Comfortbatt R23 be used in both residential and commercial buildings? Yes, Rockwool Comfortbatt R23 is suitable for use in both residential and commercial applications, providing effective thermal and acoustic insulation.

Is Rockwool Comfortbatt R23 fire-resistant? Yes, Rockwool Comfortbatt R23 is designed to be fire-resistant, offering an additional level of safety and protection.

Can Rockwool Comfortbatt R23 help with soundproofing? Yes, Rockwool Comfortbatt R23 has excellent sound absorption properties, making it an ideal choice for soundproofing applications.

Is Rockwool Comfortbatt R23 environmentally friendly? Yes, Rockwool Comfortbatt R23 is made from natural stone and is free from harmful chemicals. It is also recyclable and contributes to energy efficiency.

How easy is it to install Rockwool Comfortbatt R23? Rockwool Comfortbatt R23 is designed for easy installation. It can be easily cut to fit and requires no special tools or equipment.

Can Rockwool Comfortbatt R23 help reduce energy costs? Yes, Rockwool Comfortbatt R23 provides effective insulation, which can help reduce heat loss or gain, resulting in potential energy savings and lower energy costs.

Can Rockwool Comfortbatt R23 resist mold and mildew? Yes, Rockwool Comfortbatt R23 is moisture-resistant and does not support the growth of mold or mildew. 

Is Rockwool Comfortbatt R23 suitable for use in exterior walls? Yes, Rockwool Comfortbatt R23 can be used in exterior walls to enhance thermal performance and improve energy efficiency.

Customer Feedback

The Rockwool Comfortbatt R23 has received positive reviews from customers who have used it for their insulation needs. This versatile product has impressed users with its exceptional thermal and acoustic insulation properties. With a range of sizes available, it offers flexibility for various applications in both residential and commercial buildings.

Customers have praised the Rockwool Comfortbatt R23 for its fire-resistant characteristics, providing an added level of safety and peace of mind. The product's ability to effectively reduce sound transmission has also been highlighted, making it an excellent choice for soundproofing projects.

The ease of installation is another positive aspect of Rockwool Comfortbatt R23. Users have found it simple to cut and fit into desired spaces without requiring specialized tools. The insulation's ability to minimize heat loss or gain has been commended, potentially leading to energy savings and reduced utility costs.

While the majority of customers have had a positive experience with Rockwool Comfortbatt R23, it's worth noting that extremely dirty or stained surfaces may require a second application for optimal results.

Overall, the Rockwool Comfortbatt R23 has garnered positive feedback for its outstanding insulation properties, fire resistance, sound attenuation, environmental friendliness, and ease of installation. For anyone in need of reliable and efficient insulation, the Rockwool Comfortbatt R23 is highly recommended.

Product Length 47"
Product Thickness 5.5"
R-value R23
Brand Rockwool
Cell Structure Open Cell
Material Facing Un-Faced
Material Type Mineral Wool
Product Installation Wood Stud
Product Type Batt

Est Delivery between and .

Delivery will always take place on a weekday (Mon - Fri).
For information on delivery costs and more view our delivery info page.