Venisio Slim Channel with Stainless Grid. Divisible, ball-joint feet for adjustable height. Anti-odour function, as efficient as a water trap has a Silicon membrane.
Earlier metal roofing was sheeting in the form of corrugated galvanized steel and is still found today in parts of the developing world. Colour-coated steel roofs are popular in some Nordic countries.
Modern windows are usually glazed or covered in transparent or translucent material. Most glazed windows may be opened, to allow ventilation; or closed, to exclude inclement weather.