Introduction

• No lapping: The on-site production eliminates virtually all requirements for lap joints
• Sheet lengths can be adjusted to meet the building requirements on site.
• No maintenance
• Reduced transport cost: Up to 5000 m2 of coil can be delivered on a single trailer, dramatically reducing transport time and costs.
• Reduced handling on-site: Aluminium sheets are half the weight of steel, which in turn, reduces the amount of labour required on site.
• Reduced crane requirements: Roof sheets can be roll-formed straight onto the roof, reducing the dependency on cranes.
• Flexible manufacturing: any damaged sheets can be replaced immediately.

• Avoidance of galvanic corrosion which can be a problem when aluminium is in contact with certain other metal in a corrosive atmosphere.
• Avoidance of crevice corrosion which might occur when corrosive salts, soot, dirt or sand can be driven into crevices, overlaps or interfaces of which the aluminium sheeting forms a part

Hulamin roofing systems with highly durable profiles and numerous colours and gauges offer unlimited scope for design creativity on new to industry, re-build, and repair and refurbishment projects.

• Can be curved or bull nosed
• Smooth curving
• Outstanding durability
• High performance
• Simple and fast installation by trained personnel
• Wide selection of colours
• A range of gauges, shapes and profile options
• Fully recyclable
• Environmentally friendly
• A complete range of components and accessories

• Aluminium has a built-in corrosion resistance
• It can stand unprotected where it is subject to the aggressive elements
• Aluminium is age resistance and non-sensitive to UV rails
• Durable and versatile
• Little or no maintenance required
• Exceptional spanning capabilities
• High residual value
• Recyclability
• Low cost over life of building

• Only 5% of original energy used to produce aluminium is needed for recycling
• Aluminium can be recycled for generations without limitations
• Aluminium is the third most commonly occurring elements in the earth’s crust.
• An insulated Ziptech roof structure can assists in reducing energy consumption and costs.
• HRS is the supplier of aluminium-specific roofing systems that provide aesthetics pleasing and structural integrity.
• Ziptech standing seam roofing system is designed specifically to compliment the durable and cost effective properties of aluminium.
• Ziptech provide designers / architect with a huge flexible for innovative and aesthetically pleasing roof shapes.
• Smooth curving and on site tapering, extreme resistance to wind uplift and excellent thermal properties are few key benefits of the superior weatherproof roofing solutions.
• The light weight of aluminium, combined with ziptech's highly efficient installation method means installation of long lengths on site.

All products have the same finish that is:

• Mill finish in its natural sense
• Aluminium can be surface treated in a range of colour tech G4 and colour Tech PVDF wide rand of colours
• Stucco Embossed

• Aluminium has excellent formability
• It can be rolled, bent, pressed, die cast, roll formed, anodized etc.

• Performance under fire, aluminium roof sheeting is non –combustible and non flammable
• Due to low melting point of (640 degrees) aluminium self venting occurs directing heat to atmosphere resulting in localised damage
• Natural non corrosive resistance
• Aluminium roof sheeting has a higher resistance to denting than other metal due to its greater energy absorption properties and high strength
• Aluminium will not shatter or rapture when hit by hail stones
• Aluminium will absorb the impact of the projectile thereby minimizing physical damage and maintaining water tightness.
• Due high electrical conductivity, aluminium offers one of the best protection from electrical storm if roof is properly earthed
• When aluminium is exposed to air / water a hard oxide film will form to protect against any atmospheric conditions and effectively stifles the rate of further attack.

• Hulamin Roofing and cladding product are produced to exceptionally stringent quality and performance criteria which conforms to SABS 903

• The history of the successful use of aluminium as roofing and cladding medium extends over a period of more than 40 years in Southern Africa
• Considerable data has been accumulated regarding its life expectancy in various regions.

• The low emissivity of Mill-finish roof / cladding sheeting greatly reduces heat gain in the building, where an air space is provided under the roof.
• The absorbances of the mill –finish are also favourable, particularly when the underside of a roof is insulated.
• On painted roofs, the use of light colours will help to reduce the thermal absorbency of painted coating up to 30 degrees can be measured between light and dark coatings.
• The coefficient of expansion of aluminium roof sheeting is 23 x 10-6 per degree C.
• This is approximately 1 mm / linear meter over 40 degree temperature changes, this is approximately double that of steel