PETRAROOF-B mineral wool board, 50 mm

Mineral wool supports thermal comfort, acoustic comfort and a building’s fire protection strategy. It is valued in homes as well as commercial and industrial premises. Its fibrous structure helps reduce heat transfer and absorb sound, while its mineral composition offers useful properties when designing fire protection. The range of products allows insulation to be selected for a roof, façade, floor or partition wall.

Correctly installed mineral wool insulation reduces heat loss during the heating season and heat entering through the building envelope in summer. This makes it easier to maintain comfortable indoor temperatures and use heating or air conditioning efficiently. Performance depends on the product’s properties, thickness and continuity of the insulation layer. Carefully fitting the boards to the substrate and detailing junctions around windows, floors and the roof structure matter just as much as choosing the material itself.

Mineral wool can also improve acoustic conditions in appropriately designed building elements. A product intended for the specific assembly can be used in separating walls, ceilings or floors. Many unfaced mineral wool products achieve the highest reaction-to-fire class, A1. Check the properties of the individual product and assess the required fire resistance for the complete wall, floor or roof assembly.

Rendered façades require boards intended for external thermal insulation composite systems (ETICS), with appropriate strength and compatibility with the other system components. Flat roofs need products suited to the anticipated loads, while spaces between structural members call for other types of boards or batts. Materials for floating floors and acoustic partitions form another group. Each type addresses a particular construction requirement.

Mineral wool’s vapour permeability can contribute to a well-designed moisture balance within a building element. It does not replace ventilation or a properly planned sequence of layers. Protect the insulation from getting wet during storage and installation. We help match the product to its application and compare its properties with the project requirements. This reduces the risk of buying material that looks attractive on a price list but is unsuitable for the intended work.

For larger insulation areas, plan the board layout and material quantities before work starts. Ordering the required batch together helps keep installation moving. This is particularly useful where access to the façade or roof depends on rented scaffolding.

SteelProfil supplies mineral wool alongside other materials needed to insulate a building. Our wider range includes first- and second-grade materials and selected batches available from stock. We check the current availability of the specific wool product when preparing a quote. Promotions and competitive prices help plan the purchase within the project budget. Tell us which option suits your façade, roof or floor and how much material you need for the full area.