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| ROOFING
IN AFRICAN HOUSING |
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All kinds
of roofing structures are used in sub-Saharan African countries for construction
of modern houses: asbestos-board, cement-board, galvanized iron sheet, aluminum
plate, etc.
Galvanized
iron sheets, imported mainly from Europe, are the most used of the above listed
roofing systems
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If
houses are equipped with false ceilings, the negative aspects
of galvanized iron-sheet roofing system (excessive heat from darting tropical
sunray, deafening drumming noise of heavy equatorial rainfalls) are reduced to
a bearable minimum.
But in African countries, false
ceilings are luxury that developers cannot afford - particulary in rural areas
and most town houses. |
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TAR-SATURATED
CORRUGATED CARDBOARD |
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Other roofing systems exist which combine reasonable purchasing and installation
prices with good isolation quality from heat and noise. One of these solutions
is a roofing system made from tar-saturated corrugated cardboard
Tar-saturated
corrugated cardboard is manufactured with waste paper, recycled cardboard, wood's
off-cutsl, cloth trimmings and crushed sugarcane bagasse.
That is to
say any available cellulose raw material which can be transformed into cardboard;
saturated with oil tar and corrugated as galvanized iron-sheet. And
painted in various colorful water-resistant shades.
This roofing system is worldwide known since 50 years and largely used in
Europe and South America. |
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| QUALITIES
OF THE TAR-SATURATED CARDBOARD |
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Tar-saturated
corrugated cardboard is rustproof, rot-proof, water-resistant, sea air-resistant.
Roofing structures to carry these tar-saturated corrugated cardboard are far lighter
(up to 5 time lighter) than those needed for other categories of roofing system
above listed; this allow for lighter housing structures.
If
roofing set-up instructions are strictly carried out, a roof made of tar-saturated
corrugated cardboard is guaranteed for at least for 15 years
There is
a huge market for tar-saturated corrugated cardboard roofing system in African
countries. Potential market
and investment's estimate are here available. |
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