How do standard and reinforced mineral wool panels differ?

List thickness, weight, U-value, facings and required mechanical and fire performance. Mark missing data as unknown. Do not infer a value from the name; fair comparison depends on knowing what each data set covers.

Check that the figures apply to the proposed coatings and sheets. A sales description may combine advantages of several variants that cannot be ordered together. Ask for one consistent specification for each offer so the comparison can be checked.

Wool density or lamella orientation may differ; some cores combine two densities. This affects the weight and behaviour of the composite panel. Core construction alone cannot predict load capacity. Use results and tables for the variant concerned.

For example, two 100 mm panels with 0.5/0.5 mm facings and different core densities weigh 16.6 and 18.1 kg/m². Their respective U-values can be 0.38 and 0.39 W/(m²K). The heavier option need not insulate better. Read each figure separately.

Variants for specific uses can have different seals and joint details. Check which parts are fitted at the factory and which are installed on site. A component hidden from view on the finished façade may be essential to the wall’s performance.

Do not transfer a detail between variants without confirmation. Similar appearance proves neither matching geometry nor compliance with the same classification. This also applies where different cores meet on one building. Verify system compatibility rather than forcing edges together on site.

Read the design requirement first, then determine which panel and arrangement meets it. At the same thickness, variants may differ in class, permitted span or installation direction. A catalogue maximum is not a universal rating for the entire range.

If the standard option meets the need, a higher figure in another sheet does not itself bring a benefit. If it falls short, lower cost cannot justify substitution. Include opening, support and junction details before deciding whether the complete solution suits the wall.

Weight affects transport and lifting equipment; the joint affects erection sequence. Check available lengths and cover width. Concealed fixings can require a different end detail from through-fixings. Switching products may therefore change the flashing schedule.

Check accessory availability and the option to reorder replacement parts. At delivery, make sure the joint components are included. One small missing component can prevent correct installation even if it would not be visible from a distance. Compare prices for the complete kit.

Specify core construction, facings, thermal properties and fire requirements. State the installation conditions and details covered by the documents. A trade name identifies a product in an order but does not replace a description of the required properties.

Assess every substitution against the same list, including properties that were not the original reason for the choice. A cheaper, lighter variant may be suitable if it meets every requirement. An extended classification is useful where the project actually needs its extra scope.