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Accra, GHA Updated 05 February 2012 03:00
 Fair | 26°C | High: 32°C Low: 24°C Wind: 8 kph Humidity: 89%
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 Monday 33° / 25° |  Tuesday 34° / 25° |  Wednesday 33° / 26° |  Thursday 33° / 26° |
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Our Buildings In Ghana e-sources.info uses dura-pozz fly ash together with 20% Portland cement, sand and xps insulation foam to produce light concrete walls, floors and roofs for residential and office buildings. Buildings constructed with our light concrete are 30% stronger than ordinary cement block buildings and up to 40% cheaper.
Why fly ash blocks are far superior to traditional blocks buildings in Ghana Interior building surfaces are kept amazingly cooler inside when it is hot, making insulation buildings more comfortable. Proper type and placement of insulation outside reduces potential damage to the building due to heat and moisture intrusion. Insulation can make buildings more durable. With these benefits, XPS will help save energy and cost effective, while improving the comfort of those inside and the durability of your building”.
Dura-pozz fly ash is an excellent building material that increases the strength and lifespan of concrete buildings at low cost. XPS insulation foam is one of the best materials for both general and specialized applications. Its excellent resistance to moisture, imperviousness to rot, mildew and corrosion, controlled compressive strength and ability to maintain insulating power make XPS foam a premiere insulating material for commercial, industrial and residential structures, as well as for critical civil engineering uses. When combined, XPS insulation foam, dura-pozz fly ash, Portland cement and sand form the unique unmatched building panels and blocks.
Extruded Polystyrene Foam Insulation XPS Residential and commercial builders are faced with many choices when it comes to selecting the most effective form of insulation for roofs, walls or foundations. Extruded polystyrene foam (XPS) maintains its excellent insulating power over time, resists moisture absorption and has compressive strength that, when compared to other insulation products, is second-to-none.
Benefits of XPS foam are due to the extrusion manufacturing process employed. XPS insulation foam begins as a solid polystyrene granule. The granules are fed into an extruder where they are melted and critical additives are mixed with the viscous fluid that is formed. Then, a blowing agent is injected to make the mixture foamable. Under carefully controlled heat and pressure conditions, the foamable mixture is forced through a mixture of dura-pozz fly ash, cement, and sand at which time forming and shaping occurs. The rigid light concrete panel or blocks are then moulded and trimmed to the final product dimensions. This continuous extrusion process produces a consistent quality light concrete with a closed-cell structure that looks like a mass of uniform bubbles with common walls between them. Close inspection reveals there are few, if any, voids between the cells and that a continuous smooth skin, top and bottom, has formed. As a quality building material, XPS insulating materials are available in either rigid board stock or fanfold sheet versions and in a wide range of sizes, thickness and compressive strengths that are ideally suited to a variety of construction applications. Following are some benefits and uses of XPS insulation.
Thermal Efficiency The thermal efficiency of an insulating material is expressed as R-value. R-value is the material’s resistance to heat flow. The higher the R-value, the greater the insulating power. Other materials provide insulation, but none maintain R-value as well as XPS over time. R-value depends on trapped “air” within all types of insulation. If the trapped “air” is replaced with water or is squeezed out by crushing, the R-value is reduced. The high moisture resistance and high compressive strength of XPS help to maintain high R-value for many years in the harsh conditions of real-world applications. Why is R-value important? Incorporating high R-value insulation when building, leads to less energy consumption by the building, creating lower operational costs. Put simply, insulation saves money. Surfaces in the living area are kept warmer when it is cold outside and cooler inside when it is hot, so, insulation makes buildings more comfortable. Proper type and placement of insulation outside reduces the potential for damage to the building due to cold, heat or moisture intrusion. Insulation can make buildings more durable. With these benefits, XPS will help you and your customers save energy and money, while improving the comfort of those inside and the durability of your building.
Moisture Resistance Moisture resistance: A critical factor affecting long-term energy performance is the ability of an insulating material to resist the intrusion of moisture. Moisture may come in contact with insulation not only during construction, but throughout the life of the structure. If absorbed, its effect is to drastically reduce the insulation’s R-value. The closed-cell structure and lack of voids in XPS help it to resist moisture penetration better than all other types of insulating materials. The excellent moisture resistance of XPS foam insulation has been confirmed repeatedly and consistently in laboratory tests and under field-use conditions. XPS foam does not corrode or rot. It is resistant to microorganisms found in soil and provides no nutrient value to vermin. These properties, coupled with its outstanding ability to resist water absorption, make it an outstanding insulating material for below-grade applications.
Compressive Strength The closed-cell structure of XPS imparts excellent long-term strength and durability. Due to its inherent physical properties, this strength does not depend on the use of facers or laminates that are sometimes compromised during installation of the product.
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