prefabricated building materials and building components, not of metal, namely, brick slips, timber frame façade panels, cladding, shingles, siding; brick slips and cladding, not of metal, for indoor and outdoor use in building; facing sheets of drywall, wall panels and wall covering tiles and bricks, not of metal; insulating building boards for both new build and renovation purposes; the aforesaid products both for inside and outside use