Thatching is the craft of building a roof with dry vegetation such as straw, water reed, sedge (Cladium mariscus), rushes, heather, or palm branches, layering the vegetation so as to shed water away from the inner roof. … It is a very old roofing method and has been used in both tropical and temperate climates.
What is a thatched roof made out of?
While thatch roofs are made from dried up materials such as straw, stems, and reed, they are so much more than just “piled up!” They are woven together extremely tightly to form a nearly impenetrable surface that keeps out natural elements, rodents, and pests.
Why do English houses have thatched roofs?
This is the story behind the thatched roof quaintness. When the Bronze Age inhabitants of England wanted to put roofs on their houses, they gathered up the materials at hand—long-stemmed plants such as wheat or straw. … It’s called thatching, an ancient craft that remains virtually unchanged.
What are the problems with a thatched roof?
Leaking. Perhaps the most common and obvious problem with thatched roofing is the potential for leaks. These can come from all areas of the roof, including the ridge, valleys and corners.
How many years does a thatched roof last?
Water Reed thatch should last from 25 to 40+ years. Combed Wheat Reed from 25 to 35 years. Longstraw thatch from 15 to 25 years. Ridges need to be replaced every 10 to 15 years.
How thick is a thatched roof?
The courses of thatch are usually around 6 inches (150mm) thick; depending on the type used. A suitable angle of material within the coatwork, of around 20 degrees, can be maintained by the skilled use of some Backfilling.
Do thatched roofs get moldy?
One of the common complaints about natural thatch roofs is the potential mold problem. … Natural thatch, if done properly can resist it, but over time, many thatch roofs do develop mold. This is so unfortunate, because thatch roofs are inherently durable and beautiful.
Which country has the most thatched houses?
Thatch is popular in the United Kingdom, Germany, The Netherlands, Denmark, parts of France, Sicily, Belgium and Ireland. There are more than 60,000 thatched roofs in the United Kingdom and over 150,000 in the Netherlands.
Why are cottages thatched?
You can find the English thatched cottage in most counties in England but especially in the once major corn growing counties. Thatch was used as a form of roofing for all types of cottages, the half-timbered cottages in the woods, the stone cottages of the Cotswolds and the cob cottages of the south west of England.
Do spiders live in thatched roofs?
Insects such as spiders live in thatch and are only a pest if you are scared of them. … Book lice, mites, cockroaches and flies have also been associated with thatched roofs but these can also be attributed to disturbance of property and other factors but they still are pests which have had to be dealt with.
Do rats live in thatched roofs?
The important thing is that you don’t want rats and mice or even squirrels in your thatched roof. They can do a lot a damage to the thatch and can cause problems, loosening fixings and chewing material. It may well take some time to get rid of the vermin before the repairs can be carried out.
Why are thatched roofs no longer allowed in London?
Whilst thatched roofs remain popular in rural England it has long been regarded as a dangerous material in cities. London’s first building begulation, the ordinance of 1212, banned the use of thatch to try to avoid the rapid spread of fire from one building to another.
Can you have a wood burning stove in a thatched cottage?
The fundamental recommendation is that wood burning and multi-fuel stoves should not be used in thatch roofed buildings.
Is it more expensive to insure a thatched house?
Are thatched roofs more expensive to insure? Expect to pay more for your buildings or contents insurance as a thatched roof is a bigger fire risk than a slate roof. They also have a more expensive rebuild value than conventional houses because they’ve been built using specific materials by specialists.
Are there thatched roofs in America?
Thatch is less common in the US, but thatcher William Cahill estimates that there are thatched buildings in at least every state. However, there are at least 100,000 in Japan, 4,000 to 5,000 added annually in Holland, and an estimated two million in Africa!