Blown-In Attic Insulation McAllen TX
Handyman McAllen

McAllen TX Blown-In Attic Insulation Company

Blown-in cellulose insulation (also called loose fill or wool insulation) is useful in unfinished attics or attics with hard-to-reach areas. Without adequate insulation, summer heat generated there transfers into the living space of the home and increases the demand on the air conditioning system. During the winter, inadequate insulation causes heat loss and overworks the heating system.  Properly insulating your attic reduces the rate of heat transfer and stretches your energy dollars.

TOOLS & MATERIALS

• Work gloves
• Goggles
• Dust mask
• Tape measure
• Flashlight
• Insulation blowing machine
• Cellulose insulation
• Polyethylene
• Plywood or boards for temporary flooring

PREPARATION AND INSTALLATION

Like batts and rolls, blow-in insulation is also specified by R-value, but this is not the same as inches of thickness installed. It is a calculation of quantity of materials and rate of blowing needed to reach a desired density and height of material and cover the entire space. To achieve the desired R-value, it will be important to follow package labeling. The minimum number of bags per 1,000 square feet is based upon the net area of the space to be insulated.

Blow-in insulation is highly compressed in the bag. The blowing machine is designed to open up the insulation material, fluff it, and then blow it out through the hose at the rate you set to achieve the specified coverage and R-value.

A useful guide for installing the proper amount of blow-in insulation is to mentally divide the space into four equal parts. Then you can figure how many bags should go into each quarter of the space. For example, if you have 24 bags of insulation, you would blow six bags into each of the quadrants.

STEP 1

Determine the R-value required in your area by using the chart below or contacting your local contractor or building inspector.

 Zone   Roofs Walls  Floors

 1         R49    R28    R25

 2         R49    R22    R25

 3         R49    R18    R25

 4         R49    R18    R25

 5         R49    R18    R25

 6         R49    R18    R25

STEP 2

Use our blown-in cellulose calculator to determine how many pounds of insulation you need. The calculator also tells you how deep the insulation should be to obtain your R-value.

STEP 3

Determine how many rafter vent / baffles you need (use one for each soffit vent).

STEP 4

Plan to install the insulation in the early morning hours before the attic heats up.

STEP 5

Use plywood to make a temporary walkway by resting a sheet across the ceiling joists.