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Specification
Brand : Johns Manville
BulletPoint1 : High Density (Cathedral) Product
BulletPoint2 : Two bundles of 4 bags for a total of 8 bags for a total of 506.64 square feet
BulletPoint3 : Unfaced insulation. No moisture barrier.
BulletPoint4 : R-38HD type, 23W x 48L x 10 in. thick
BulletPoint5 : Requires Coordination on Delivery. A Non-Encypted Phone Number will be Needed. Please be Ready to Provide this with 24 Hours of Purchasing via a Phone Call or Amazon Messaging.
ExternallyAssignedProductIdentifier1 : 0746175454612
ExternallyAssignedProductIdentifier2 : 746175454612
ItemName : Johns Manville 507 SQFT 8 Bags of R 38 Unfaced 23 by 48 High Density Fiberglass Fits 2X10 Floor-Ceiling, attic
ItemPackageQuantity : 8
ItemShape : Square
ItemTypeKeyword : fiberglass-raw-materials
Manufacturer : Johns Manville
Material : Fiberglass
NumberOfItems : 48
PartNumber : JMR38X23HDX48UF8Temp
ProductDescription : Description
JM Formaldehyde-free thermal and acoustical insulation is made of long, resilient glass fibers bonded with a thermosetting resin. A wide range of thermal resistance R-values is available to provide thermal control for both vertical and horizontal applications. JM insulation is available unfaced or with a variety of facings, including kraft or foil vapor retarder.

Features
JM Formaldehyde-free thermal and acoustical insulation can be used in a wide variety of wood frame, engineered wood and steel frame construction applications, including:
New Construction: residential homes and commercial buildings interior and exterior walls, floors and ceilings for thermal and sound control, as well as basement wall insulation.
Retrofit: adding insulation to attics, crawl spaces and above suspended ceilings.Thermally Efficient: provides effective resistance to heat transfer with R-values up to R-49 (RSI-8.6).
Sound Control: reduces transmission of sound through exterior and interior walls and floor or ceiling assemblies.Superior Performance: bonded glass fibers are dimensionally stable and will not slump within the wall cavity, settle or break down during normal applications


Environmental and Sustainability
Formaldehyde-free: will not off-gas formaldehyde in the indoor environmentFire Resistant and Noncombustible: se.

Design Considerations
Kraft and standard foil facings on this product will burn and must not be left exposed. It must be covered with gypsum board or another approved interior finish. Where an exposed application is required, use FSK-25 flame-resistant faced insulation. In colder climate areas, vapor retarders (whether attached to the insulation or applied separately) are often placed toward the heated or conditioned side of the wall. This is done to reduce water vapor penetration into the wall from the building interior. Check your local building codes for vapor r
ProductSiteLaunchDate : 2019-11-01T07:00:00.000Z
Size : 19 by 48
SupplierDeclaredDgHzRegulation : not_applicable
UnspscCode : 30000000