# ROCKWOOL R-15 Comfortbatt 3-1/2 in. x 15 in. x 47 in. Fire Resistant Stone Wool Insulation Batt (59.7 sq. ft.)

**Brand:** [ROCKWOOL](https://shop.coreranger.com/brands/ROCKWOOL)
**SKU:** RXCB351525
**Price:** $84.98 · in stock
**URL:** https://shop.coreranger.com/product/rockwool-r-15-comfortbatt-3-1-2-in-x-15-in-x-47-in-fire-resistant-stone-wool-insulation-batt-59-7-sq-202090820

## Specifications

| Spec | Value |
|---|---|
| Model # | RXCB351525 |
| Bag Size | 4 ft. x 16 in. x 24 in. |
| Pack Size | 12 |
| Internet # | 202090820 |
| Returnable | 90-Day |
| Store SKU # | 974419 |
| Batt/Roll Size | 4 ft. x 15.25 in. |
| Insulation Type | Mineral Wool Insulation |
| Faced or Unfaced | Unfaced |
| Insulation R-Value | R15 |
| Insulation Features | Friction Fit |
| Insulation Location | 2x4 Wall,Attic,Basement,Ceiling Insulation,Crawlspace,Floor |
| Product Width (in.) | 15.25 in |
| Product Length (ft.) | 4 ft |
| Product Weight (lb.) | 49.7 lb |
| Coverage Area (sq. ft.) | 59.7 sq ft |
| Product Thickness (in.) | 3.5 in |
| Compatible Install Surface | Wood |

## Description

ROCKWOOL Comfortbatt is a semi-rigid stone wool thermal batt insulation for exterior wood and steel stud applications. It features a unique flexible edge that allows for easy installation and helps prevent over compression to maintain its R-value. Non-combustible and fire resistant, Comfortbatt will not develop toxic smoke or promote flame spread, even when exposed directly to a fire. It also offers water and moisture resistance and excellent sound absorbency. Comfortbatt is an effective way to improve a home's energy efficiency. It is GREENGUARD Gold Certified and contributes to a healthier indoor environment.

• Easy to install with a friction fit and a consistent R-Value
• Compression pack, one bag includes 12 pieces and covers 59.7 sqft
• Sound reduction and fire resistance designed for exterior walls