When is a 100 mm mineral wool wall panel a good choice?

Compatibility with existing panels is especially important in refurbishment. Check joint profiles and cover widths even when the nominal thickness matches. Compare cross-sections before ordering a replacement and establish whether one panel will suffice or a larger bay with separate flashings will be needed.

One 100 mm mineral wool wall panel has a stated Uc of 0.39 W/(m²·K). Another range may have a different value. Compare the declared figure with the requirement for this wall and its intended use before specifying the panel for a heated building.

For year-round use, also assess doors, windows, the wall base and ventilation. For occasional heating, humidity and the way the heating is brought into operation matter. Moisture can condense at a cold, leaky junction even with a 100 mm panel.

A 100 mm panel with 0.5 mm steel facings on both sides weighs about 18.1 kg/m² in one example. A 6 m² panel in that configuration weighs roughly 109 kg. Other facings or cores change the result. Base delivery arrangements on the data for the product ordered.

Panel length affects how the load can be guided during lifting and how it responds to wind. Select equipment for both lifting capacity and the permitted gripping method. When recladding, check access once the old wall is removed and provide a safe place to set down dismantled parts.

Consider both seasons when assessing a 100 mm panel. Heat loss and humidity matter in winter. In strong summer sun, facing temperatures and indoor comfort also need attention. Shading, windows and ventilation can strongly influence summer temperatures. If the brief calls for comfort throughout the year, specify how the whole building will respond to the weather alongside the wall’s U-value.

A particular 100 mm panel may have a declared reaction-to-fire class of A2-s1,d0. For the fire resistance of the finished wall, check the scope of classification, including supports, joints, orientation and other conditions. The EI rating must be established for the assembly selected.

Use product-specific data to compare acoustic performance too. A nominal thickness of 100 mm does not predict the reduction in room noise. Gaps, doors and grilles affect sound transmission through the wall. For reverberation inside the room, look at the sound absorption of exposed surfaces. A wool core behind solid sheet steel does not by itself establish absorption performance.

Coating, colour, dimensions and order volume affect the price. As a worked example, 120 m² at approximately €34.72/m² gives a material cost of €4,166.10, excluding VAT. The total uses the unrounded shop exchange rate for the hypothetical PLN amounts on 13 November 2026. This example illustrates the calculation and is neither a quote nor a market average.

Add accessories, flashings, transport, unloading and labour. Refurbishment also includes dismantling and any repairs to the frame. When comparing 100 mm and thicker panels, allow for changes in fastener length and flashing depth to see the difference in total project cost.

Workshops and service premises often need new cable penetrations and changes to equipment. Plan service routes and independent equipment supports at the outset. This keeps the wall in good condition and reduces the number of improvised seals.

Keep the panel specification and photographs of joints before they are concealed. These will help plan a repair after a trolley impact or frame an opening for a new window. A 100 mm panel is a sensible choice when it meets the needs of the particular wall and can be maintained easily. The popularity of the size is only a starting point.