Johns Manville MinWool® Curtainwall insulation is available in a wide range of thicknesses and is available plain or with a foil facing vapor retarder. Providing superior fire resistance and acoustical properties, MinWool Curtainwall is designed for use in glass, metal and masonry curtainwall spandrel systems and can be placed between or over framing members.
Available in 2 densities, Curtainwall 40 (4.0 pcf) and Curtainwall 80 (8.0 pcf).
Fire-Resistant: Melting point in excess of 2000˚F (1093˚C). Unfaced: Flame Spread of 0 and Smoke Developed of 0. Faced: Flame Spread of 25 or less and Smoke Development of 5 or less.
Sound Control: Excellent sound absorption to reduce sound transmission.
Durable Inorganic Glass: No growth of fungi. No sustaining of vermin.
Densities: Curtainwall 40 (4.0 pcf) and Curtainwall 80 (8.0 pcf).
|ASTM Standards||ASTM C665|| Unfaced: Type 1
Faced: Type III, Class A, Category 1
|Thermal Resistance||ASTM C518||R-value R4–R-4.2 per inch|
|Flame Spread||ASTM E84|| Unfaced: 0
Faced: ≤ 25
|Smoke Development||ASTM E84|| Unfaced: 0
Faced: ≤ 5
|Water Vapor Permeance Facing||ASTM E96||0.02 perms, maximum|
|Water Vapor Sorption||ASTM C1104||< 1% by weight; < 0.2% by volume at 120ºF (49ºC), 95% RH|
|Odor Emission||ASTM C1304||Pass|
|Fungi Resistance||ASTM C1338||Pass|
|Combustion Characteristics||ASTM E136||Pass|
|ASTM C612||Type 1–4|
MinWool Curtainwall 40 - Data Sheet
Minwool Curtainwall 80 - Data Sheet
MinWool Curtainwall SDS
MinWool Curtainwall SDS (ES)
Specifications and Certifcations
MinWool Curtainwall and Safing
Mineral Wool Environmental Product Declaration
Product Selector Guide
Mineral Wool Product Comparison Chart
Mineral Wool 2.0 Sell Sheet