What is the r-value of Johns Manville spintex bat insulation product # HI-82B?
This is what is currently in my attic. I'm looking to find out wether to replace or add on top of this 1950s insulation.
I checked their website and Product Data sheet and there is nothing under this #. Perhaps if you have any more information.
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 1936 JOHNS MANVILLE Catalog Building Materials ASBESTOS Shingles Insulation 35p $9.99 Time Remaining: 3h 42m |
 1941 J M ENGINEERS HANDBOOK JOHNS MANVILLE ASBESTOS Product Information $349.95 Time Remaining: 7h 41m Buy It Now for only: $349.95 |
 Johns Manville Catalog Corrulux Panels Specify Asbestos $125.00 Time Remaining: 16h 53m Buy It Now for only: $125.00 |
 POLLUTION CONTROL CATALOGS Johns Manville Asbestos Dust Pentapure Purity Fecor $59.00 Time Remaining: 21h 34m Buy It Now for only: $59.00 |
 LOT OF TWO J M JOHNS MANVILLE ASBSTOS ROOFING SIDING CATOLOGS 1909 VINTAG $9.99 Time Remaining: 2d 4h 20m |
 Johns Manville ASBESTOS Stonehenge Architectural Panels $199.00 Time Remaining: 4d 6h 15m Buy It Now for only: $199.00 |
 Johns Manville ASBESTOS Laboratory Table Tops Shelving $299.00 Time Remaining: 4d 6h 15m Buy It Now for only: $299.00 |
 JOHNS MANVILLE Blue African ASBESTOS Gaskets Packing $249.00 Time Remaining: 4d 6h 15m Buy It Now for only: $249.00 |
 Johns Manville ASBESTOS Sound Control Ceilings 1975 $150.00 Time Remaining: 4d 6h 15m Buy It Now for only: $150.00 |
 Johns Manville ASBESTOS Transite Pipe Catalog 1969 $195.00 Time Remaining: 4d 6h 15m Buy It Now for only: $195.00 |
 Johns Manville ASBESTOS Transite DUST WARNING 1975 $299.00 Time Remaining: 4d 6h 15m Buy It Now for only: $299.00 |
 Johns Manville ASBESTOS Built Up Roof Manual 1979 $195.00 Time Remaining: 4d 6h 15m Buy It Now for only: $195.00 |
 Johns Manville ASBESTOS Colorlith Architectural Panels $199.00 Time Remaining: 4d 6h 15m Buy It Now for only: $199.00 |
 Johns Manville ASBESTOS Built Up Roofs Catalog 1969 $195.00 Time Remaining: 4d 6h 15m Buy It Now for only: $195.00 |
 Johns Manville ASBESTOS Permatone Flexboard Building $299.00 Time Remaining: 4d 6h 15m Buy It Now for only: $299.00 |
 Johns Manville ASBESTOS Transite Air Duct Catalog 1968 $99.00 Time Remaining: 4d 6h 15m Buy It Now for only: $99.00 |
 Johns Manville ASBESTOS Roofing Colorbestos Catalog 70 $249.00 Time Remaining: 4d 6h 15m Buy It Now for only: $249.00 |
 Johns Manville ASBESTOS Roofing Accessories Manual 1979 $125.00 Time Remaining: 4d 6h 15m Buy It Now for only: $125.00 |
 Johns Manville ASBESTOS ASPHALT Tile Floor Catalog 44 $125.00 Time Remaining: 4d 6h 15m Buy It Now for only: $125.00 |
 Johns Manville ASBESTOS Splitwood Architectural Panels $199.00 Time Remaining: 4d 6h 15m Buy It Now for only: $199.00 |
 Johns Manville ASBESTOS Service to Industry Catalog 49 $199.00 Time Remaining: 4d 6h 15m Buy It Now for only: $199.00 |
 BLUE CHIP Johns Manville ASBESTOS Built Up Roofing 1975 $199.00 Time Remaining: 4d 6h 15m Buy It Now for only: $199.00 |
 Johns Manville Truck Brake Lining Catalog ASBESTOS 1951 $175.00 Time Remaining: 4d 6h 17m Buy It Now for only: $175.00 |
 Johns Manville TRANSITE Pipe Systems Sewer ASBESTOS 79 $199.00 Time Remaining: 4d 6h 17m Buy It Now for only: $199.00 |
 ASBESTOS Piping American Cyanamid Co JOHNS MANVILLE DOW $195.00 Time Remaining: 4d 6h 17m Buy It Now for only: $195.00 |
 Johns Manville ASBESTOS Asbestogard Catalog 1969 $95.00 Time Remaining: 4d 6h 17m Buy It Now for only: $95.00 |
 Johns Manville ASBESTOS Asbestile Roof Insulation 1979 $195.00 Time Remaining: 4d 6h 17m Buy It Now for only: $195.00 |
 Johns Manville ASBESTOS Architectural Panels 1979 $195.00 Time Remaining: 4d 6h 17m Buy It Now for only: $195.00 |
 JOHNS MANVILLE Asbestos use in Navy Ships Marine Insulation Marinite 1950 $299.00 Time Remaining: 4d 6h 17m Buy It Now for only: $299.00 |
 Johns Manville Transite Pipe Guide Manual ASBESTOS 1960 $199.00 Time Remaining: 4d 6h 17m Buy It Now for only: $199.00 |
 Johns Manville ASBESTOS Architectural Wall Panels 1975 $249.00 Time Remaining: 4d 6h 17m Buy It Now for only: $249.00 |
 Johns Manville Car Brake Lining Catalog ASBESTOS 1951 $175.00 Time Remaining: 4d 6h 17m Buy It Now for only: $175.00 |
 Johns Manville Brake Lining Catalog ASBESTOS 1939 $175.00 Time Remaining: 4d 6h 17m Buy It Now for only: $175.00 |
 JOHNS MANVILLE Quinterra Quinorgo Electrical Insulation ASBESTOS 1951 $295.00 Time Remaining: 4d 6h 17m Buy It Now for only: $295.00 |
 Johns Manville Superex Insulation Brake Lining ASBESTOS $89.00 Time Remaining: 4d 6h 17m Buy It Now for only: $89.00 |
 JOHNS MANVILLE Built Up ASBESTOS Roof Roofing Shingles 1950 Catalog $199.00 Time Remaining: 4d 6h 17m Buy It Now for only: $199.00 |
 JOHNS MANVILLE Asbestos Flexboard Board Military Navy Use in 1950 $159.00 Time Remaining: 4d 6h 17m Buy It Now for only: $159.00 |
 Terraflex Flooring Plastic ASBESTOS Floor Tile JOHNS MANVILLE 1950 $199.00 Time Remaining: 4d 6h 17m Buy It Now for only: $199.00 |
 JOHNS MANVILLE Transite ASBESTOS Smoke Jacks Railroad Use 1940 $99.00 Time Remaining: 4d 6h 17m Buy It Now for only: $99.00 |
 Transite Sewer Pipe ASBESTOS JOHNS MANVILLE 1951 $149.00 Time Remaining: 4d 6h 17m Buy It Now for only: $149.00 |
 ASBESTOS Transite Walls Flat Sheets JOHNS MANVILLE 1948 $125.00 Time Remaining: 4d 6h 17m Buy It Now for only: $125.00 |
 ASBESTOS Sound Control in Buildings Transite JOHNS MANVILLE 1950 $299.00 Time Remaining: 4d 6h 17m Buy It Now for only: $299.00 |
 JOHNS MANVILLE Transite ASBESTOS Sheets Electrical Apparatus 1952 $99.00 Time Remaining: 4d 6h 17m Buy It Now for only: $99.00 |
 JOHNS MANVILLE Marinite Asbestos use in Boiler Engine Rooms 1950 $79.00 Time Remaining: 4d 6h 17m Buy It Now for only: $79.00 |
 Asphalt Floor Tile ASBESTOS Use in Schools JOHNS MANVILLE 1947 $199.00 Time Remaining: 4d 6h 17m Buy It Now for only: $199.00 |
 ASBESTOS Chemstone Transite Sheets use in Laboratories JOHNS MANVILLE 1946 $149.00 Time Remaining: 4d 6h 17m Buy It Now for only: $149.00 |
 ASBESTOS Felt for Railroad Boat Deck Covering JOHNS MANVILLE $99.00 Time Remaining: 4d 6h 19m Buy It Now for only: $99.00 |
 JOHNS MANVILLE Asbestos Fiber Grade Classification Products Uses 1942 $99.00 Time Remaining: 4d 6h 19m Buy It Now for only: $99.00 |
 JOHNS MANVILLE History of Asbestos Use Mine Info 1937 1950 $99.00 Time Remaining: 4d 6h 19m Buy It Now for only: $99.00 |
 ASBESTOS Asbestocel Sheets Blocks Vitribestos Boiler Insulation JOHNS MANVILLE $149.00 Time Remaining: 4d 6h 19m Buy It Now for only: $149.00 |
 ELECTROBESTOS Asbestos Ebony Moulded Electrical JOHNS MANVILLE 1945 $99.00 Time Remaining: 4d 6h 19m Buy It Now for only: $99.00 |
 JOHNS MANVILLE Asbestos Cloth Clothing Tubing Safety Curtains 1940 $99.00 Time Remaining: 4d 6h 19m Buy It Now for only: $99.00 |
 ASBESTOS Ebony Ohmstone Electric US NAVY USE JOHNS MANVILLE 1946 $249.00 Time Remaining: 4d 6h 19m Buy It Now for only: $249.00 |
 Firetite ASBESTOS Furnace Cement JOHNS MANVILLE 1946 $149.00 Time Remaining: 4d 6h 19m Buy It Now for only: $149.00 |
 TRANSITOP Wall Panel Asbestos Flexboard JOHNS MANVILLE 1947 $89.00 Time Remaining: 4d 6h 19m Buy It Now for only: $89.00 |
 JOHNS MANVILLE Transite ASBESTOS Core Plates Jackets Foundry Use 1949 $99.00 Time Remaining: 4d 6h 19m Buy It Now for only: $99.00 |
 JOHNS MANVILLE Roof Coating Felt Roofing Putty Building Papers ASBESTOS 1951 $99.00 Time Remaining: 4d 6h 19m Buy It Now for only: $99.00 |
 JOHNS MANVILLE 85 Magnesia Pipe Insulation ASBESTOS 1949 $99.00 Time Remaining: 4d 6h 19m Buy It Now for only: $99.00 |
 ASBESTOS Fire Felt Sheets Blocks Pipe Insulation JOHNS MANVILLE 1937 $99.00 Time Remaining: 4d 6h 19m Buy It Now for only: $99.00 |
 ASBESTOS Insulation Specifications Valves Fittings Flanges JOHNS MANVILLE 1949 $149.00 Time Remaining: 4d 6h 19m Buy It Now for only: $149.00 |
 ASBESTOS Jackets Outdoor Pipe Insulation JOHNS MANVILLE 1946 $99.00 Time Remaining: 4d 6h 19m Buy It Now for only: $99.00 |
 JOHNS MANVILLE Insulkote Insulation Aertite Coating ASBESTOS 1950 $99.00 Time Remaining: 4d 6h 19m Buy It Now for only: $99.00 |
 Transite Pressure Pipe ASBESTOS Water Mains Supply JOHNS MANVILLE 1949 $149.00 Time Remaining: 4d 6h 19m Buy It Now for only: $149.00 |
 ASBESTOS Roll Fire Felt Asbestocel Insulation JOHNS MANVILLE 1950 $99.00 Time Remaining: 4d 6h 19m Buy It Now for only: $99.00 |
 ASBESTOS Transite Flue Pipe Industrial Vent Piping JOHNS MANVILLE 1949 $199.00 Time Remaining: 4d 6h 19m Buy It Now for only: $199.00 |
 ASBESTOS Transcell Electrical Equipment JOHNS MANVILLE 1948 $199.00 Time Remaining: 4d 6h 19m Buy It Now for only: $199.00 |
 JOHNS MANVILLE Pipe Insulation ASBESTOS 1950 $99.00 Time Remaining: 4d 6h 19m Buy It Now for only: $99.00 |
 ASBESTOS Insulation of Power Plants Boilers JOHNS MANVILLE 1948 $299.00 Time Remaining: 4d 6h 19m Buy It Now for only: $299.00 |
 Johns Manville Packings Insulation Catalog ASBESTOS 24 $395.00 Time Remaining: 4d 6h 19m Buy It Now for only: $395.00 |
 JOHNS MANVILLE Pipe Line Wrapping ASBESTOS Felts 1943 $99.00 Time Remaining: 4d 6h 19m Buy It Now for only: $99.00 |
 JOHNS MANVILLE Waterproofing Damp Proofing Felt Roofing ASBESTOS Products $99.00 Time Remaining: 4d 6h 19m Buy It Now for only: $99.00 |
 JOHNS MANVILLE Insulating Fillers Fibro Cel ASBESTOS 1943 $99.00 Time Remaining: 4d 6h 19m Buy It Now for only: $99.00 |
 ASBESTOS Papers Tapes Listings Tubing JOHNS MANVILLE 1946 $99.00 Time Remaining: 4d 6h 19m Buy It Now for only: $99.00 |
 ASBESTOS Corrugated Transite in Building Roofing Siding JOHNS MANVILLE 1947 $99.00 Time Remaining: 4d 6h 19m Buy It Now for only: $99.00 |
 Niagrite Asbestoment Asbestos Electrical Fireproofing JOHNS MANVILLE 1943 $99.00 Time Remaining: 4d 6h 19m Buy It Now for only: $99.00 |
 ASBESTOS Asbesto Sponge Pipe Insulation JOHNS MANVILLE 1949 $99.00 Time Remaining: 4d 6h 19m Buy It Now for only: $99.00 |
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