Roofing components; roofing systems; products and/or fixings for the installation of ridge tiles; products for dry fixing ridge tiles; building materials of clay; bespoke clayware; clayware for use in building; clay pavers; architectural terracotta; bricks; tiles; ridge tiles and fitments; finials; gas ridge and chimney terminals; ventilating ridge tiles; chimney pots, building elements for use in the construction of fire places; flue terminals; flue linings; flue bends and offsets; air bricks; ducts; cavity wall bridging ducts; flues; flue terminals; flue ventilators; gas appliance terminals; wall cladding components; clayware wall cladding tiles; support structures for clay walling; ridge cloaks; capping blocks; offset liners; fire backs; concrete capping blocks; lintels; sills; stringers; copings; drainage pipes; drain pipes; garden ornaments; landscaping materials.;