building materials:
-decks, floors and floating floors
- wooden slats
- construction lumber
-roof coverings and accessories
-skylights, roof film
-plumbing products and sheets
- thermal insulation
-polystyrene, plasterboard
- OSB boards (also sanded)
- heating system
- waterproofing asphalt strips
- polycarbonate
- garden program, indoor furniture
-chimney systems
- gutter systems