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AB-HAM is the sole importer and distributor of Decra products in Ethiopia.
Proven around the world
In 1954, the New Zealander Lou Fisher discovered that the bitumen coating used on metal roofs in the UK had extended their life considerably. Back in New Zealand, he produced his first coated metal roof tile and so the origins of Decra Roofing were born.
Manufactured only from Zincalume® (Alu-Zinc) Steel
Since 1995, ALL products manufactured by AHI Roofing have been produced from Zincalume® Steel.
The combined sacrificial corrosion protection of Zinc with the barrier protection of Aluminum is shown I tests to extend the life of coated steel by 6-9 times (against atmospheric corrosion) when compared to ordinary galvanized steel products.
Natural Rock
Decra Roofing Tiles are coated with Natural Rock chips, volcanically formed and taken form quarries in New Zealand. These coating add natural beauty to the roof. The rock chips are embedded in a deep basecoat and covered in an acrylic over glaze. The tiles are finally oven baked to ensure a lasting durability.
Decra Roofing Tiles are also unique because during installation, tiles are cut and bent at ridges and hips, to produce a 90 degree overlap with accessories and flashings. This eliminates the requirement for any other form of waterproofing.
Unique Installation
Unlike conventional roof tiles, Decra Roofing Tiles are overlapped and secured horizontally through the face. This fixing method ensures that there is no wind uplift or rain penetration oven in hurricane conditions with wind speeds up to 200km/hr.
It also makes the roof virtually burglar proof since the tiles cannot easily be lifted for access through the roof.
New Technology, Classic Charm
AHI Roofing have employed new technology and coating systems as they have become available over time. This means that the products produced today lead the way not only n design, but also in quality, performance and durability.
Subtle Tones
Decra Roofing Tiles are coated in Natural Stone chips. These natural stone coatings are available in a range of 10 colours. Combining colour and profile creates a choice of over 25 different combinations to meet almost every architectural design.
Cost Effective
Decra Roofing Tiles are not only strong and resilient; they are also light weight (7kg/m2). This lends itself to considerable savings in the roof structure (rafter/trusses/battens), foundations and in transport and breakage. Additionally, because of the unique installation no other underlay is required and installation is also much faster that that of conventional tiles.
Heritage Tile Profile
Traditional
The traditional design of the Decra Heritage Tile is popular for both residential and commercial buildings. It remains the highest selling profile of metal roof tile around the world.
Decra Heritage Tile is available in a choice of 10 different colours of Natural Stone Chip. This ensures that it is complementary to most building design and so provides the discerning architect of client with a wide choice to enhance the structures’ design.
Shake Profile
Natural Effect
 The natural effect of the Decra Shake design has made it the first choice for many residential and commercial properties, particularly hotels ad lodges where the profile adds aesthetically to the overall architectural design.
SHINGLE Profile
New Technology, Classic Charm
 The profile of the Decra shingle product is achieved in manufacture through a process of complicated corrugations. This is coupled with a selection of two contrasting colours of natural stone coatings, which combine to create a very classic appearance that reflects light differently according to the angle and direction of the sun. The result is subtle changes in the roof’s shade and tone at different times of the day.
Not Just Strong on Looks
Decra Roofing Tiles has been designed to withstand the harshest weather conditions and extremes of nature. Not only have our products been proven around the world but they have also been widely tested by independent laboratories.
Light and Strong
Because of its unique installation method (each tile is not only fastened to the roof frame in 4 places, but also to the four tiles surrounding it), Decra Roofing Tiles can withstand Earthquake, Hurricane winds and Monsoon Rain.
Performance and Testing
All Decra Roofing Tiles are tested to meet the highest standards and codes for building materials worldwide.
Fire
Decra Roofing Tiles are Fire Tested up to 760°C and during testing showed no flames, sparks, or smoke on the underside of the tile test deck. This feature gives the product particular benefit in areas prone to natural fire and in commercial structures such as schools, or hotels, where fire is an ever present concern.
Corrosion
Even in the most severe corrosive coastal environments, Decr Roofing Tiles are supplied with a 50 year written manufacturer’s warranty for weather security.
Testing
All Decra Roofing Tiles are tested continually, to ensure that the highest manufacturing standards are met. Products are exposed to advanced weathering laboratory testing as well as exposure on natural test sites at a variety of locations.
Commercial
Since Decra Roofing Tiles are both light weight and cost effective, they are used in many commercial projects. These include Hotels, Shopping Centers, Office Buildings, Schools and many more.
Decra Roofing Tiles can also be installed on to a steel frame (special tasteners are supplied). So particularly where large open areas are being covered, Decra Roofing Tiles provide the ideal solution.
Technical Information
Decra Roofing Systems have been fully appraised and have received test reports from the following:
Weathering Resistance
- Accelerated Weathering test to American Society for Testing and Materials standard (ASTM) G26-70.
Weather Security
- High speed dynamic Rai Penetration and High Wind Loading Tests – by Construction Research Laboratory Inc, Florida, USA.
- Low speed Dynamic Rain Penetration Test – by Experimental Building Station, Australia.
Hurricane/Cyclone Wind Resistance
- Hurricane test by Construction Research Laboratory Inc, Miami, Florida, USA.
- Cyclone Loading Test to the wind loading code, Australian standard 1170, Part 2 1975 – by Cyclone Testing Station, Australia.
Corrosion Resistance
- Salt/fog Test to ASTM B117
- 100% Relative Humidity Test to ASTM D2247
Concentrated Loading
- Concentrated Force on Roofing Tiles to Australian Standard 1582, Rule 5.2 by cyclone Testing Station, Australia.
Fire Resistance
- Class A & B under UL 790 (ASTM E-108) when applied I accordance with instructions.
Resistance to the impact of Hail Stones
- Hailstone test by Commonwealth Scientific and Industrial Research Organisation, Division of Building, Construction and Engineering Australia.
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