What is a 100 mm mineral wool insulated wall panel suitable for?
Insulated panels
A 100 mm wall panel with a mineral wool core can be used for cladding halls and selected internal partitions. However, it is not a universal solution for every heated building. Its U-value, mass, acoustics and fire resistance depend on the specific system. Before purchase, the support, coating and locks must also be checked. The same thickness in two offers does not mean the same properties. In one of the wall panels with 100 kg/m³ stone wool, the 100 mm variant has a Uc of 0.39 W/(m²·K). With 0.5/0.5 mm facings, the mass is 18.1 kg/m². The datasheet states Rw 33 dB and a reaction to fire of A2-s1,d0.
What does a sample 100 mm specification look like?
In one of the insulated wall panels with mineral wool at 100 kg/m³, the 100 mm variant has a Uc of 0.39 W/(m²·K). With 0.5/0.5 mm facings, the weight is 18.1 kg/m². The datasheet states Rw 33 dB and reaction to fire A2-s1,d0. These are the parameters of a specific product. They should not be attributed to every panel with mineral wool of this thickness.
In another system, 100 mm has a U-value of 0.37 and a weight of 17.0 kg/m² with the same nominal sheet thicknesses. The core construction and the joint geometry differ. Comparing offers therefore requires product datasheets. If the description only states “100 mm panel”, ask for the type, facings, coatings and cover width to be specified. This is the data needed to verify the design and the cost.
Is it suitable for a heated hall?
The answer depends on the required thermal insulation of the wall. A 100 mm panel with mineral wool does not achieve the same U-value as a PIR panel of the same thickness. Experience with a different core material cannot be used as a guide. The required parameter results from the building’s function, the temperature and the design. Thermal bridges and connections to the rest of the building envelope must also be assessed.
If the U-value of the selected variant is too high, thicker mineral wool or another designed assembly may be the solution. Simply adding material on the inside requires verification of the thermal and moisture conditions. An incidental additional layer can conceal a leak instead of eliminating it. It is better to select the correct building component before installation than to correct it later with additional materials.
When does it work as an internal wall?
In a partition separating rooms with similar temperatures, thermal insulation may be less important than in an external wall. Acoustics, resistance to damage and fire conditions still matter. The panel provides finished surfaces on both sides and allows space to be separated quickly. However, its fixing and support must correspond to the anticipated loads.
For a technical room, check the cable penetrations and how the equipment is fixed. Heavy devices should not hang on random screws in a thin facing. If the wall is to reduce noise, also assess the doors and leaks. A high rating of the panel itself will change little if sound passes through an open duct or a lightweight gate.
How do you check the required fire class?
Certain EI classes may be available for a specific 100 mm variant. However, the conditions regarding panel orientation, spans and joint execution must be read. A value from one datasheet does not carry over to another system with a similar core. Even differences that are not visible in a photo of the finished facade matter.
Fire protection also covers the structure, joints and openings. If you change from an exposed-fixing panel to a concealed-fixing one, check the classification from scratch. Retaining 100 mm of mineral wool is not enough. Other sealing or a larger support spacing must be assessed in the same way. A reliable quote should specify a product that meets the project requirement, not promise general ‘fire resistance’.
Does a 100 mm panel fit an existing frame?
Measure the support spacing and widths and determine their wall thickness. Then check the load table for the specific panel. Allow for wind, colour, support pattern and permissible deflection. A structure prepared for another material is not automatically suitable. This also applies when replacing an old panel with a new one of the same thickness.
Check the position of the doors, plinth and corners. A new module may change the joint layout. For a 6-metre element with a 1 m module and a weight of 18.1 kg/m², the mass will be approximately 108.6 kg. Such an example helps to plan equipment and unloading. However, it should not be transferred to panels of a different width or with thicker facings. Transport data should match the order.
How can you avoid buying the wrong product?
Start with the requirement for the wall, not with a promotion you have found for 100 mm. Compare U-value, fire class, acoustics and support. Determine the coating for the conditions on both sides. Add flashings, fasteners and installation cost. A panel available off the shelf may be worthwhile, but only if its lengths and parameters suit the task.
For second-grade material, ask for a description of the defects and the documents specific to the batch. Do not transfer the data of a full-quality product without confirmation. For new panels, make sure the labels match the quote. The 100 mm variant is one design tool, not a ready-made answer for every hall. Its suitability is determined by compliance with all the requirements the wall is to meet.
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