Read This Before You Insulate Your Attic. For DIY attic insulation, youve basically got two choices loose fill or batt the common term for blanket insulation. Both can be added to uninsulated attics or layered over existing material. While it may seem counterintuitive, even wellinsulated attic spaces require air circulation. That means drawing air in from outside the home and allowing it to push. AsktheBuilder. com Attic insulation can be fiberglass blankets or blown in insulation. Batt insulation is available at home centers and lumberyards. Cary Insulation Company, Inc. They specialize in all types of blown insulation and fiberglass batts. CAUTION Asbestos has been found in some types of vermiculite insulation. Vermiculite, a lightweight material resembling gravel, was used as attic insulation in. Attic ceiling insulation can cut your heating bills by more than just about any other home energy upgrade. Find out the best options for your home right here. Attic Insulation is one of the most important components in your house. A temperature difference between floors is a crucial sign you need more insulation. Once youve decided which type is best for you, examine the material options and prices to home in on the right product. Always check labels for specifics on whatever you buy. Loose fill. Insulation fibers are packaged in bags and blown in place to the desired depth and density using special machinery you can rent from a home center. You can pour the fill in place and spread it manually, but the process is much more labor intensive and the results wont be nearly as good. It works best for Attics with irregular or nonstandard joist spacing Attics with lots of obstructions and penetrations to work around Attics where there is existing insulation to be topped, since it fills 
gaps and joints well Low clearance attics with limited headroom for maneuvering 
during installation DIYers who want to get the job done quickly and are comfortable 
working with power equipment. Material options FiberglassR value per inch 2. Made of Recycled glass or sand thats melted and spun into fibers. Bottom line Lighter in weight than cellulose or mineral wool, but it settles more than those materials, so youve got to put in a thicker layer to get the protection you need. CelluloseR value per inch 3. Made of Fibers from recycled post consumer paper that are treated for insect and fire resistance. Mappy Mame Rom here. Bottom line The most common blown in material used, but it can rot and grow moldy if exposed to moisture. Mineral woolR value per inch 3. Made of Fibers from rock or recycled slag from blast furnaces. Bottom line Offers natural fire resistance, but costs more than other loose fill materials.