Sunday, October 3, 2010

Thatch Roofing - Innovations in Fire Protection

"How very little since things were made, things have changed in the construction industry '-Rudyard Kipling

When you look at the above website it can be inferred that there are many innovations in the field of shell have been, but has a lot of progress in the field of fire protection of the coating material. Modern techniques to eliminate the danger of fire would also be out, that many people fear for the straw. Today, fire blankets and straw placed between the variouscorrect compaction the fire risk is virtually eliminated and the use of lightning rods, the straw is no longer the hazardous material in the past.

or preventive measures

Lightning Protection

lightning rods should always be installed to protect the thatched buildings. For single poles of 45 ° angle of protection from the top is down, and you should make sure that the entire roof is covered with at least one meter above the roof of the building.For a high-risk area of the flash, for example, on slopes or on a hill, is the degree of protection only 30 ° from the top down along the bar and, of course, the lightning rod should be much larger or more conductors can be installed. If more than a lightning rod is installed, the angle between their protection to 60 degrees from its highest point down along the pole.

Binding

For the purpose of lightning protection, is stronglynot recommended, galvanized steel wire should be used to bind the straw, and more than a natural material suitable for use. Poplar and wattle sticks are common, and some strands use sugar cane or straw used. String Tar treaties should not be binding, as this can be used to create an effect of back-up in case of fire.

Fireplaces

Chimneys should be constructed so that the external surfaces in contact with the straw is not hot. Thick solid brick (220 mm)usually sufficient to satisfy this requirement. All mortar joints in the stack must be filled. to extend the top of the stack must be at least 1m above the highest point of the roof and a spark arrester (stainless steel mesh), is near the top, the entire width of the fireplace, built in the fireplace to prevent sparks around the edges, and may ignite the roof.

Cabling & Services

electric and telephone cables should enterBuilding through culverts, and all electric cables in the roof should be done screwed metal conduit, with all junction boxes sealed.

Refuse

Combustible material should not be allowed to accumulate in the house. A number of thatched roofs were set on fire in the past following the burning of garden waste in the area.

adjacent buildings

Must be sufficient space between buildings be allowed to prevent the spread of fire tothatched building, adjacent buildings and vice versa. Some countries rule requires at least 15 meters distance between the building and its boundary of the site.

or reduce the flammability

flame-retardant chemicals

Many fire retardant chemicals are in these days can be applied to the straw by dipping or spraying, but as these chemicals are generally soluble in water, are in time, especially from the rain as it does not penetrate the material, but only washedForm a surface coating.
Many of the sun is gradually exposed to the chemicals evaporate and may leave unprotected the top layer.

Fireproof Ceiling

A protective membrane fuel can not contribute will be added under the straw thatch grass as a cover to prevent the spread of fire between the layers. The materials that are commonly used for this purpose, aluminum, paper or fiber glass building. The disadvantage of this measure rainfall warm, moist or highAreas is that due to the waterproof membrane or blanket, the air flow between the thatched roof is limited and will improve the growth of fungi. The flow of air through the straw should be avoided perforated membrane selected fungal growth enough.

or Fire

Sprinkle with water

horizontal perforated pipes can on each side and parallel to the ridge, passing the valves are placed on the ground control available. The tubes can be made of galvanized steelSteel or copper, to play with holes at appropriate intervals along the length of water pipe on the roof in case of fire. Alternatively, a horizontal pipe run inside the roof to the ridge, where "spreaders" protruding through the straw in intervals sufficient. Such systems may be the straw dip in case of fire. A rush of high water is needed for this to be effective and will not be able to run the national waterSupply. Special arrangements must be made with the City to be a plant.

Other

There are two schools of thought on the value of the pool as a source of water supply for fire fighting. Some local authorities believe that a pool can be useful when close enough to the house and removed with full access for firefighters.

However, some professional organizations believe that the straw burns so quickly that firefighters rarely reaches theScene before the fire has affected, and the first use of water from the tank unit Brigade would be faster than a swimming pool supply.

A metal rake long handle to be positioned in an easily accessible place is available for drawing down the roof of straw smoking. The handle can be a suitable clip, the nozzle of the hose can be set so as to improve the coverage of the beam.

Even if all these precautions were taken, the occupants of a thatched roofHouse must always exercise due caution when it comes to open flame or close to home as to refuse to prepare a barbecue or garden waste or burning when the fireworks are discharged into the neighborhood.

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