Applegate Insulation

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Standard Operating Procedures for Installation of Applegate Stabilized Insulation in Attics

The Essentials for Equipment Set-Up with Applegate Stabilized Insulation: Attic Applications

Using a ridged ribbed hose, use only the Applegate* break-apart attic sleeve for ease of sleeve cleaning. Be sure to have various size tips available, an adequate water pump, and be certain there is sufficient power. Check to make sure the water tank is filled with water and the water hose line is properly attached. Other items needed for complete set-up include: clamps, shut-off valve, reducers, transparent measuring container to measure water volume, rubber mallet, watch with second hand and solenoid, plus various tools. Once the system is connected follow the instructions below.

1. Be certain to install a means (such as a solenoid) to stop the pump and halt water flow when the blowing machine is stopped.

2. Install a water shut-off on the waterline above where the waterline goes into the sleeve. With the 4"sleeve this is before the waterline diverts (Y’s) to both tips. The water needs to be turned off at the shut off when the machine is turned off and needs to be turned on after the machine starts up.

3. Time the production of the blowing machine to learn how many bags of Applegate Insulation the equipment blows per hour/minute.

4. Determine the proper Attic Sleeve size: If the Insulation blowing machine blows 110 bags per hour or more use the 4" sleeve system. If the output on the insulation machine is 3.5" it might be best to use the 4" sleeve system, using a 3.5" to 4" connector. If the machine output is 3" and volume is below 110 bags per hour use the 3" sleeve system.

4" Attic Sleeve system: The 4" sleeve is designed for higher volume machines and has two tips. Attach 10’ of 4" hose to the machine’s outlet.

Next, place the 4" sleeve in the hose line. Finally, after about 10’ more of 4" hose (beyond the sleeve) reduce the hose size to 3.5".

3" Attic Sleeve system: In order for the insulation to move vertically though the sleeve, install the "Attic Sleeve" at the point where the hose comes down off the back of the truck or trailer.

5. Place the Attic Sleeve tip in the transparent measuring container. Turn the water pump on and adjust the pump pressure to achieve the correct water flow of 33 ounces per 26.5 lb bag. (Use the "Installation Guidelines: Moisture per Bag" chart to determine needed flow rate.) Make certain to use spray tips designed for attic stabilization. These tips have a conical spray pattern. This is a very different tip than what is used for wall-spray!

*Applegate break-apart attic sleeves can be ordered from your Applegate Sales Representative or from Applegate Georgia, phone: 888-427-7534. The 4" sleeve is part # 40-0402; the 3" sleeve is part # 40-0400. These come with tips, but you must specify which tip size is needed.  

Other Important Considerations:

A. While installing Applegate Insulation, it is critical that the installer holds the hose horizontally. Pointing the hose down WILL decrease the coverage significantly. Using hoses with a total length longer than 150’ may require additional blowers. This is especially true when small or medium sized machines are being used. Using more than 150’ of hose and an underpowered blower could negatively affect coverage. The blowing machine seals must be replaced regularly, or this could negatively affect coverage.

B. The insulation moisture content and the ambient moisture of surrounding building materials, such as framing members, must be in equilibrium prior to activation of air conditioning. A water pH factor greater than 7.8 requires Applegate Bora-Spray insulation or a pH buffer must be added to the water to reduce it’s pH below 7.8.

C. Applegate recommends stainless steel tips, as they last longer and wear less quickly than brass tips. As tips wear additional water is used, which can negatively affect the coverage per bag. Regardless of what type of tip is used, installers must test their tips regularly and adjust the water flow and pressure to ensure that excessive water is not being applied.

With set-up completed, INSULATE with APPLEGATE!

Required Maintenance for Applegate Stabilized Attic Application

1. Attic sleeve tips need to be replaced after installing 6,000 bags or less.

2. The sleeve should be disassembled and cleaned every day.

3. On a daily basis, the tip(s) should be disassembled and checked to ensure that the spinner has not seized up.

4. As part of your daily routine, the water should be measured to make certain that the correct amount of water is being added. Also, observe the spray pattern of the tip to verify that the tip is functioning properly.

5. Remember to use the manual water shut-off when the material flow is stopped.

6. When installing the tip(s), it is important to ONLY hand tighten the tip in place. This will help to ensure that they can be easily removed and replaced when checked daily.

7. A rubber mallet can be used on the hose to help keep the moistened insulation moving in the hose. Normally this means pounding on the hose about the first 5’ of hose from the sleeve after approximately 20 bags have been blown through the machine.

8. Always begin the blowing process with the water off. Turn the water on, when the insulation is flowing through the hose, past the attic sleeve. Do not turn the machine off until you have turned the water off and blown a dry bag past the sleeve. This is necessary for shut down procedures.

Applegate Stabilized Cellulose System (26.5 lb Bag)
Installation Guidelines: Moisture per Bag 


Applegate recommends 32-34 oz. (0.94-1.01 L) of water per bag of Applegate Stabilized Cellulose. For water pH factors of 7.8 or above, use Bora-Spray insulation or a pH buffer to bring the pH levels below 7.8.

Production Rate:
The actual production rate of your machine (the number of bags it blows per hour under normal working conditions) is extremely important in determining the proper settings for the Applegate Stabilized Cellulose (ASC) system. The ideal ratio of moisture to material is 33 oz. (0.98 L) to 1 bag. Therefore, the faster your machine blows insulation, the more moisture needs to be added.

Using the Chart
To calibrate your Applegate Stabilized Cellulose (ASC) system:

1. Calculate the actual production rate of your machine (the number of bags it blows per hour under normal working conditions).

2. Insert your ASC spray tip into a transparent container with volume indicator marks.

3. Adjust the pressure or change the tip size to inject the recommended water amount as listed in the chart below.

4. Make sure the spray from the tip is a fine, atomizing mist.

Attics Only

Bags Per Hour

Seconds per Bag

Ounces (Liters) of water per minute



11 (0.33)



14 (0.41)



17 (0.49)



19 (0.57)



22 (0.65)



25 (0.73)



26 (0.78)



28 (0.83)



32 (0.94)



33 (0.98)



37 (1.11)



41 (1.22)



45 (1.32)



50 (1.46)



57 (1.68)

Please note: This chart is for use only with Applegate Stabilized Cellulose. Other materials may require more moisture.




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