ROCKWOOL Comfortbatt R-38 Stone Wool Insulation Batt 9-1/2 in. x 15-1/4 in. x 47 in. (19.9 sq. ft.). Genuine ROCKWOOL product, model RXCB381525, UPC 774783493822. In stock at Partner Supply, Brooklyn, NY, with fast delivery across NY, NJ and CT.
Overview
Comfortbatt R-38 is the thickest ComfortBatt, at 9-1/2 in., sized 15-1/4 in. x 47 in. for wood framing 16 in. on center. A bag holds 4 batts and covers 19.9 sq. ft. It is used in attic floors, cathedral ceilings and exposed floors where code calls for R-38 in a single layer.
The batt is unfaced stone wool with a flexible edge that keeps it snug without over-compression. It is non-combustible, repels water, resists mold and absorbs sound. Cuts with a serrated knife.
Key features
- Stone wool batt with a flexible edge that compresses on insertion and springs back to fill the stud cavity (manufacturer).
- Non-combustible; Flame Spread Index 0 / Smoke Developed Index 0 per ASTM E84 (UL 723); non-combustible per ASTM E136 at 750 C.
- Complies with ASTM C665 Type 1 mineral fiber blanket insulation; density greater than 1.8 lb/ft3 (ASTM C167).
- Water repellent; passes fungi resistance test; does not rot or support mold or mildew growth.
- Unfaced, friction-fit installation; cuts with a serrated knife.
- GREENGUARD Gold certified for indoor air quality.
- Provides sound absorption in addition to thermal resistance.
Specifications
| Brand | ROCKWOOL |
|---|---|
| Model / MPN | RXCB381525 |
| UPC / GTIN | 774783493822 |
| ROCKWOOL item # | 294337 |
| Product type | Mineral Wool Insulation |
| R-value | R-38 |
| Size | 9.5 in. x 15.25 in. x 47 in. |
| Thickness | 9.5 in. |
| Facing | Unfaced |
| Coverage | 19.9 sq. ft. per bag |
| Pieces per package | 4 |
| Fits | 2x10 or 2x12 wood framing 16 in. o.c. (attics, roofs, floors) |
| Condition | New |
Quick answers
How much does one bag cover?
One bag covers 19.9 sq. ft. (4 pieces, 9.5 in. x 15.25 in. x 47 in.).
What framing does it fit?
2x10 or 2x12 wood framing 16 in. o.c. (attics, roofs, floors)
What is the UPC of ROCKWOOL RXCB381525?
The UPC (GTIN) is 774783493822.
Is it in stock and how fast can I get it?
Usually in stock at our Brooklyn yard. Order online or on WhatsApp at 718-406-4455 for pickup by appointment at 21 Ingraham Street, Brooklyn, NY 11206, or fast delivery in NY, NJ and CT.
Stocked in our warehouse: free pickup, or local delivery to your site for a flat $75 per order. Outside our local area, choose Shipping: we quote the carrier rate after you order and hold the order until you approve it.
Unused items in original packaging can be returned within 30 days.