Thatching a roof is an age-old tradition. It is hard, demanding work. Today it exists primarily as a restoration activity. Thatching is the craft of building a roof with dry vegetation such as straw, water reed, sedge, rushes and heather, layering the vegetation so as to shed water away from the inner roof.
There are more thatched roofs in the Ireland and United Kingdom than in any other European country. Quality thatching straw can last for more than 45–50 years when applied by a skilled Thatcher.