Jet Stream® Ultra Blowing Wool

Name: Jet Stream® Ultra Blowing Wool
Brand: Knauf Insulation

Our flagship blown-in insulation for insulating new construction and existing buildings. This insulation provides consistent thermal performance against outdoor temperatures and helps maintain indoor temperatures. Greater thermal resistance means better temperature control. This premium product is BIBS® approved. Made with recycled glass, it’s the smarter way to stand up to the cold.

Applications

Certifications

Product Features

Quality Design

Engineered with a class A fire rating, this insulation is noncombustible. It can provide good air flow resistance and improved sound control versus uninsulated areas.

Easy Install & Handling

Installs clean and easy. Installers can spend less time installing as it requires fewer bags, compared to cellulose material — which can make the job more efficient.

Thermal Performance

Excellent thermal properties help reduce the operating costs of heating and air conditioning. Fills all gaps and voids in wall cavities, helping to meet required building codes.

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Product Details

Technical Data

Technical Data
Property (Unit)	Test	Performance
Corrosion	ASTM C764	Pass
Combustibility	ASTM E136	Non-combustible
Water Vapor Sorption (by weight)	ASTM C1104	Less than 5%
Critical Radiant Flux	ASTM E970	Greater than 0.12 W/cm²
Mold Growth	ASTM C1338	Pass
Surface Burning Characteristics (flame spread/smoke developed)	ASTM E84, CAN 4-S102.2	25/50

Coverage Chart - Attics

Open Attic Coverage
R-Value *	Bags/1,000 Sq. Ft.	Max. Coverage	Min. Weight	Initial Installed Thickness	Min. Settled Thickness**
To obtain a thermal resistance of:	Number of bags per 1,000 square feet of net area should not be less than:	Contents of this bag should not cover more than:	Weight per square foot of installed insulation should not be less than:	Installed insulation should not be less than:	Installed insulation should not be less than:
R-60	29.7	33.6 sq. ft.	0.952 lbs.	19.750"	19.750"
R-49	23.5	42.5 sq. ft.	0.753 lbs.	16.375"	16.375"
R-44	20.9	47.8 sq. ft.	0.670 lbs.	14.875"	14.875"
R-38	17.8	56.2 sq. ft.	0.569 lbs.	13.000"	13.000"
R-30	13.6	73.3 sq. ft.	0.437 lbs.	10.375"	10.375"
R-26	11.8	85.0 sq. ft.	0.377 lbs.	9.125"	9.125"
R-22	9.8	102.2 sq. ft.	0.313 lbs.	7.750"	7.750"
R-19	8.4	119.3 sq. ft.	0.268 lbs.	6.750"	6.750"
R-13	5.7	175.3 sq. ft.	0.183 lbs.	4.750"	4.750"
R-11	4.7	210.8 sq. ft	0.152 lbs.	4.000"	4.000"

Bag Net Weight - Nominal 32 lbs., Minimum 31 lbs.
Coverage and installation data were determined using a Volu-Matic® III blowing machine in third gear with 13" gate opening, 2.5–3.0 PSI air pressure, 150' of 3" diameter internally-corrugated hose. Volu-Matic III is a registered trademark of CertainTeed Corporation.
*“R” means resistance to heat flow. The higher the R-value, the greater the insulating power. To get the marked R-value, it is essential that this insulation be installed properly. If you do it yourself, get instructions and follow them carefully. Instructions do not come with this package.
**Based on Third Party 10-year settling study, the predicted settlement over a 20-year period would be 1 percent or less. This amount of settling is thermally insignificant. Therefore, the installed and settled thicknesses are effectively the same.

Coverage Chart - Walls

Cavity Wall Coverage
Framing	Cavity Depth	R-Value*	Density	Bags/1,000 sq. Ft.	Max. Coverage/Bag	Net Min. Weight/Sq. Ft.
Framing	Cavity Depth	To obtain a thermal resistance of:	Density	Number of bags per 1,000 square feet of net area should not be less than:	Contents of this bag should not cover more than:	Weight per square foot of installed insulation should not be less than:
2" x 4"	3.50"	R-15	1.8 PCF	16.4	61.0 sq. ft.	0.525 lbs.
2" x 6"	5.50"	R-23	1.8 PCF	25.8	38.8 sq. ft.	0.825 lbs.
2" x 8"	7.25"	R-31	1.8 PCF	34.0	29.4 sq. ft.	1.088 lbs.
2" x 10"	9.25"	R-39	1.8 PCF	43.4	23.1 sq. ft.	1.388 lbs.