SteelProfil supplies panels and insulation for walls and roofs, sheet metal, fencing and accessories for finishing the building envelope. Start with the part of the building you are working on. A sandwich panel already incorporates insulation between its facings, while PIR and XPS boards form a separate insulation layer. For roofing, compare the sheet profile and coverage dimensions on the product page. The SOLROOF section includes a project quotation and the FIT VOLT photovoltaic panel.