Interior wall Insulation Steel stud interior wall

ROCKWOOL AFB®

Name: AFB
Brand: Rockwool

ROCKWOOL AFB® is a mineral wool batt insulation designed for interior partitions in commercial constructions where superior fire resistance and acoustical performance are required.

AFB is also available in sizes designed for wood stud construction.

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Download datasheet Download AFB evo datasheet

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AFB Acoustic Fire Batt Insulation

ROCKWOOL AFB® is a lightweight, acoustical fire batt stone wool insulation specifically designed for steel stud and wood stud interior wall and floor applications.

Its superior sound absorbency and fire protection contribute to the overall comfort and safety of occupants. AFB is specifically designed to reduce sound transmission and provides exceptional acoustic comfort when installed in a wall assembly with gypsum boards and resilient channels.

AFB is non-combustible and will not develop toxic smoke or promote flame spread, even when directly exposed to fire. This helps to provide valuable extra time for people to reach safety and for fire services personnel to control the spread.

AFB is a key component of many tested fire-rated partitions and assemblies with tested STC ratings and is available in a number of thicknesses to meet the requirements of both retrofit and new construction applications.

Easy to install, AFB is an optimal balance of rigidity and flexibility helping to make installations easy, fast, and efficient.

Applications

Acoustical Fire Batt Insulation (AFB) (SAFB)

Interior wall insulation
Interior steel stud partition wall
Interior wood framed wall
Interior floor/ceiling

Benefits

AFB is a component of multiple UL/ULC fire rated interior partition listings.Certifications and Sustainability

AFB has been USDA certified Biobased, obtaining the USDA BioPreferred Certification.

GreenGuard Gold Certification.

AFB meets criteria for the Declare Red List Approved status, and AFB evo, the no-added formaldehyde version of this product, meets the Red List Free criteria and declaration.

AFB has an available HPD document for download.

20220606 RWNA ILLUS 1625

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Compliance

Type 1 Compliant Mineral Fiber Insulation, MEA Approval

CAN/ULC S702	Mineral Fiber Thermal Insulation for Buildings, Type 1 Compliant
ASTM C665	Mineral Fiber Blanket Thermal Insulation, Type 1 Compliant
ASTM C553	Mineral Fiber Blanket Thermal Insulation, Type 7 Compliant
338-97-M	MEA Approval, New York City Approval
RR 25444	City of Los Angeles Approval

Density

> 2.5 lbs/ft3 (> 40 kg/m3 )

ASTM C303

Actual Density at thicknesses < 3" (76.2 mm) - 2.8 lb/ft³ (45 kg/m³)

Dimensions

Thickness – 1” – 6” (25.4 mm – 152.4 mm)

16" x 48" (413 mm x 1219 mm)

24" x 48" (610 mm x 1219 mm)

Reaction to fire

Non-combustible, Flame Spread = 0, Smoke Development = 0

ASTM E84 (UL 723)	Flame spread index = 0 ; Smoke developed index = 0
CAN/ULC S102	Flame spread index = 0 ; Smoke developed index = 0
CAN/ULC S114	Determination of Non-Combustibility of Building Materials - Non-Combustible
ASTM E136	Behavior of materials at 750°C - Non-Combustible
CAN/ULC S129	Smolder Resistance - 0.09%

Acoustical Performance

NRC = 1.05 (3” thickness)

Thickness	125 Hz	250 Hz	500 Hz	1000 Hz	2000Hz	4000 Hz	NRC
1.0"	0.14	0.25	0.65	0.9	1.01	1.01	0.7
1.5"	0.18	0.44	0.94	1.04	1.02	1.03	0.85
2"	0.28	0.6	1.09	1.09	1.05	1.07	0.95
3"	0.52	0.96	1.18	1.07	1.05	1.05	1.05
4"	0.86	1.11	1.2	1.07	1.08	1.07	1.1

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CAN/ULC S702	Mineral Fiber Thermal Insulation for Buildings, Type 1 Compliant
ASTM C665	Mineral Fiber Blanket Thermal Insulation, Type 1 Compliant
ASTM C553	Mineral Fiber Blanket Thermal Insulation, Type 7 Compliant
338-97-M	MEA Approval, New York City Approval
RR 25444	City of Los Angeles Approval

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ASTM C303

Actual Density at thicknesses < 3" (76.2 mm) - 2.8 lb/ft³ (45 kg/m³)

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16" x 48" (413 mm x 1219 mm)

24" x 48" (610 mm x 1219 mm)

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ASTM E84 (UL 723)	Flame spread index = 0 ; Smoke developed index = 0
CAN/ULC S102	Flame spread index = 0 ; Smoke developed index = 0
CAN/ULC S114	Determination of Non-Combustibility of Building Materials - Non-Combustible
ASTM E136	Behavior of materials at 750°C - Non-Combustible
CAN/ULC S129	Smolder Resistance - 0.09%

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Thickness	125 Hz	250 Hz	500 Hz	1000 Hz	2000Hz	4000 Hz	NRC
1.0"	0.14	0.25	0.65	0.9	1.01	1.01	0.7
1.5"	0.18	0.44	0.94	1.04	1.02	1.03	0.85
2"	0.28	0.6	1.09	1.09	1.05	1.07	0.95
3"	0.52	0.96	1.18	1.07	1.05	1.05	1.05
4"	0.86	1.11	1.2	1.07	1.08	1.07	1.1

Item number	Product	Country	Thickness (inch)	Width (inch)	Length (inch)	Pieces Per Pack	Packs Per Pallet	Square Feet Per Pack	Square Feet Per Pallet	Construction

291319	AFB	Canada	1	16	48	32	11	73.14	2048	Steel Stud
168672	AFB	Canada	1.5	24	48	16	12	59.08	1536	Steel Stud
291318	AFB	Canada	1.5	16	48	18	12	41.14	1152	Steel Stud
168648	AFB	Canada	2	24	48	12	12	44.31	1152	Steel Stud
291322	AFB	Canada	2	16	48	16	12	36.57	1024	Steel Stud
168652	AFB	Canada	2.5	24	48	10	12	36.92	960	Steel Stud
291321	AFB	Canada	2.5	16	48	12	12	27.43	768	Steel Stud
168650	AFB	Canada	3	16	48	8	12	29.54	768	Steel Stud
291325	AFB	Canada	3	15	48	12	12	25.71	720	Wood Stud
291326	AFB	Canada	3	16	48	12	12	27.43	768	Steel Stud
273583	AFB	Canada	3.5	24	48	8	12	29.54	768	Steel Stud
291324	AFB	Canada	3.5	16	48	12	10	27.43	768	Steel Stud
168656	AFB	Canada	4	24	48	6	12		576	Steel Stud
291327	AFB	Canada	4	16	48	8	10	18.29	512	Steel Stud
168661	AFB	Canada	5	24	48	5	12	18.46	480	Steel Stud
291328	AFB	Canada	5	16	48	6	12	13.71	384	Steel Stud
168659	AFB	Canada	6	24	48	4	12	14.77	384	Steel Stud
291329	AFB	Canada	6	16	48	6	12	13.71	384	Steel Stud
168671	AFB	USA	1	24	48	24	12	88.62	2304	Steel Stud
291319	AFB	USA	1	16	48	32	12	73.14	2048	Steel Stud
291318	AFB	USA	1.5	16	48	18	12	41.14	1152	Steel Stud
168648	AFB	USA	2	24	48	12	12	44.31	1152	Steel Stud
291322	AFB	USA	2	16	48	16	12	36.57	1024	Steel Stud
168652	AFB	USA	2.5	24	48	10	10	36.92	960	Steel Stud
291321	AFB	USA	2.5	16	48	12	12	27.43	768	Steel Stud
286368	AFB	USA	3	24	48	10	12	36.92	960	Steel Stud
291183	AFB	USA	3	16	48	16	12	36.57	1023.9	Steel Stud
291279	AFB	USA	3	15	48	16	12	34.29	960	Wood Stud
294432	AFB	USA	3	23	47	10	12	34.65	900.84	Wood Stud
294401	AFB	USA	3	19	47	10	12	28.92	752.04	I-Joist
286386	AFB	USA	3.5	24	48	8	12	29.54	768	Steel Stud
291276	AFB	USA	3.5	16	48	12	12	27.43	768	Steel Stud
294407	AFB	USA	3.5	15	47	12	12	25.6	716.76	Wood Stud
294410	AFB	USA	3.5	23	47	8	12	27.72	720.72	Wood Stud
294410	AFB	USA	3.5	23	47	8	12	27.72	720.72	Wood Stud
286390	AFB	USA	4	24	48	8	12	29.54	768	Steel Stud
291280	AFB	USA	4	16	48	12	12	27.43	768	Steel Stud
286392	AFB	USA	5	24	48	6	12	22.15	576	Steel Stud
291281	AFB		5	16	48	8	12	18.29	512.04	Steel Stud
286447	AFB	USA	6	24	48	5	12	18.46	480	Steel Stud
291282	AFB	USA	6	16	48	8	12	18.29	512.04	Steel Stud
291282	AFB	USA	6	16	48	8	12	18.29	512.04	Steel Stud
294405	AFB	USA	6	19	47	5	12	14.46	375.96	I-Joist
248651	AFB evo		1	24	48	24	48	88.62	2304	Steel Stud
248812	AFB evo		1.5	24	48	16	12	59.08	1536	Steel Stud
291333	AFB evo		1.5	16	48	16	48	41.14	1152	Steel Stud
248817	AFB evo		2	24	48	12	12	44.31	1152	Steel Stud
291334	AFB evo		2	16	48	16	12	36.57	1024	Steel Stud
248821	AFB evo		2.5	24	48	10	12	36.92	960	Steel Stud
231121	AFB evo		3	24	48	8	12	29.54	768	Steel Stud
231121	AFB evo		3	24	48	8	12	29.54	768	Steel Stud
291336	AFB evo		3	15	48	12	12	25.71	720	Steel Stud
291337	AFB evo		3	16	48	12	12	27.43	768	Steel Stud
274563	AFB evo		3.5	24	48	8	12	29.54	768	Steel Stud
291335	AFB evo		3.5	16	48	12	12	27.43	768	Steel Stud