GS MW
Sandwich panels with a lamella mineral wool core. Fire reaction class A2-s1,d0 (non-combustible).
GS MW are non-combustible sandwich panels by Gór-Stal with a lamella mineral wool core (fibres perpendicular to the facings → higher compressive strength). The choice for buildings with the most demanding fire requirements and for fire-compartment separation walls. 6 variants:
- S / QA-S — wall panels, concealed fixing
- U / QA-U — wall panels, exposed fixing
- CH / QA-CH — cold storage panels for buildings requiring non-combustibility (e.g. cold storage holding flammable goods)
The QA series (Quality Assurance) features an improved joint profile and better air-tightness — λD 0.040 W/(m·K) vs 0.044 for the standard variants.
Common parameters: lamella mineral wool core, fire reaction class A2-s1,d0 (non-combustible), PZH hygiene certificate for all variants, module length up to 14 m, thicknesses from 50 to 200 mm.
When GS MW instead of PIR (insPIRe): public buildings, halls storing flammable goods (wood, paper, plastics), boundary walls between fire compartments, buildings over 12 m tall where regulations require a non-flame-spreading (NRO) facade.
Variants
MW CH
Mineral wool cold storage sandwich panel — A2-s1,d0, EI up to 240, λD 0.044, thicknesses 100–250 mm.
λD = 0,044 W/(m·K)
MW QA CH
Mineral wool cold storage panel QA — A2-s1,d0, EI up to 180, λD 0.040, thicknesses 100–250 mm, no micro-cracking joint profile.
λD = 0,040 W/(m·K)
MW QA S
Mineral wool wall panel QA — A2-s1,d0, λD 0.040, no micro-cracking joint profile, thickness 80 mm.
λD = 0,040 W/(m·K)
MW QA U
Mineral wool wall panel QA with concealed fixing — A2-s1,d0, EI 120, λD 0.040, thicknesses 80–120 mm.
λD = 0,040 W/(m·K)
MW S
Mineral wool wall sandwich panel — class A2-s1,d0, EI 60, λD 0.044, thickness 80 mm.
λD = 0,044 W/(m·K)
MW U
Mineral wool wall panel with concealed fixing — A2-s1,d0, EI 120, λD 0.044, thicknesses 80–120 mm.
λD = 0,044 W/(m·K)
Variant comparison
| Variant | Facings | Thermal conductivity (λ) | Applications |
|---|---|---|---|
| MW CH | Galvanised steel sheet both sides per EN 10346, organic polyester paint 25 μm | 0,044 W/(m·K) | cold store walls (temperature above 0°C) with class A2 requirement, freezer walls (temperature below 0°C) with class A2 requirement |
| MW QA CH | Galvanised steel sheet both sides per EN 10346, organic polyester paint 25 μm | 0,040 W/(m·K) | cold store walls (temperature above 0°C) with class A2 and QA durability requirement, freezer walls (temperature below 0°C) with class A2 requirement |
| MW QA S | Galvanised steel sheet both sides per EN 10346, organic polyester paint 25 μm | 0,040 W/(m·K) | external and internal walls in industrial buildings with class A2 requirement, buildings requiring corrosion-resistant joints (aggressive environments) |
| MW QA U | Galvanised steel sheet both sides per EN 10346, organic polyester paint 25 μm | 0,040 W/(m·K) | external walls with class A2 requirement and concealed fixing aesthetics, EI 120 fire separation partitions with concealed joint system |
| MW S | Galvanised steel sheet both sides per EN 10346, organic polyester paint 25 μm | 0,044 W/(m·K) | external and internal walls of industrial buildings, buildings requiring class A2 fire reaction (non-combustible) |
| MW U | Galvanised steel sheet both sides per EN 10346, organic polyester paint 25 μm | 0,044 W/(m·K) | external walls of buildings with class A2 requirement and clean facade, warehouse and production halls with EI 120 fire requirements |