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Glass Wool Insulation Rolls

Specification guide

Property	Selection guidance
Density	12–48 kg/m³; compare conductivity and thickness as well as density
Thickness	50 / 75 / 100 / 150 mm; 75–100 mm can be evaluated for tropical buildings, subject to design
Thermal conductivity λ	Approximately 0.032–0.040 W/(m·K) for selected grades; some low-density grades are around 0.041 or higher; verify mean test temperature
Illustrative thermal resistance	100 mm at λ=0.036 gives material R≈2.78 m²·K/W, excluding thermal bridges and other roof layers
Reaction to fire	Select an unfaced grade with a verified A 1 classification where required; confirm the faced product separately
Service temperature	Grade-dependent; do not assume the blanket, binder, adhesive and facing are all rated to 200°C
Moisture behavior	Vapor-open; water ingress and condensation can impair performance
Water repellency	Hydrophobic grades may be specified; request the value and test method
Water absorption	Request the selected product’s short- or long-term test result and reporting units
NRC	Report for the actual thickness, facing and mounting; no universal value applies
Dimensions and packing	Confirm roll width, length, overlap tabs and compression recovery

Brand:
中盛嘉禾


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Product Description

Make your metal building more comfortable

Metal roofs heat up quickly in strong sunshine. Glass wool traps air within a fine inorganic fiber structure to slow heat transfer into your space. Manufactured from molten glass ingredients, often including sand and recycled glass, it offers a lightweight option for warehouses, workshops and garages.

Flexible rolls suit continuous roof coverage. The porous structure also absorbs sound energy, helping manage reverberation and rain noise as part of a suitable building assembly.

centrifugal-glass-wool-blanket-fiber-detail

Benefits for your space

Lightweight rolls simplify handling and coverage of large roof areas.
Thermal insulation and sound absorption in one material.
Different thicknesses let you balance space, performance and budget.
Foil or white facings can provide a neat visible surface in suitable systems.
Unfaced options work within assemblies that have separate air and vapor control layers.

Forms and facing options

Choose flexible rolls for continuous roof and wall insulation, or slabs and batts for cavities and local areas. Facing options to discuss include FSK foil-scrim-kraft, reinforced foil, foil with glass fabric, white polymer facings and black glass tissue. Black tissue is primarily an acoustic facing and normally does not function as a vapor barrier. Facing availability and combinations require confirmation.

aluminum-foil-faced-glass-wool-insulation-roll

Where to use it

Suitable applications include general warehouses, workshops, garages and metal wall systems. In hot, humid climates, consider outdoor humidity, indoor air conditioning, airtightness and vapor control together. High-temperature equipment areas require a different material specification.

Choosing and installing your insulation

Share your location, area and indoor operating conditions before selecting thickness. Use an appropriate support mesh, strap or liner system; the facing alone should not carry the blanket indefinitely. Maintain installed thickness and seal joints and penetrations as required. Vapor-control placement depends on climate and operating conditions. Keep packs dry and protect insulation during installation.

FAQs

Is foil facing always necessary? No. A properly designed separate membrane can provide vapor control. Continuity, airtight joints and correct placement matter.

Should I choose75 mm or100 mm? At equal conductivity,100 mm provides higher material thermal resistance. Compare the complete roof’s target U-value and compression at supports.

Will it sag? Correct support, dry conditions and suitable installation help maintain its position. Excessive spans, moisture and reliance on the facing alone increase the risk.

Find your specification

Send ZSJH Steel your roof or wall area, location, required thickness and facing preference for a suitable configuration and quotation.

CTA: Choose Your Specification.

Performance note: Values are selection guidance. Confirm the supplied grade, test conditions and product reports. Building energy and acoustic outcomes depend on the complete assembly.