Construction World January 2017

Preventing corrosion and condensation The extensive range of Fibertex geotextiles, which is designed for use in the construction sector, encompasses Absorex – a non woven material, that enhances the value of a building and protects its contents by preventing condensation and limiting corrosion.

“Absorex is designed to control condensation and corrosion problems on metal and steel roofs in all climate conditions, including installations in harsh coastal environments,” says Lance Woolley, business development manager, Fibertex South Africa. “This durable material prevents water from dripping into buildings causing damage to furniture, equipment and stored goods. Absorex also protects against mould growth and reduces reflective noise from rain. In addition to protecting the roof against corrosion and keeping the building’s contents dry, the polyester layer improves aesthetics of the ceiling.” When temperature and humidity of the roof structure reach dew point, Absorex applied on the roof panels absorbs moisture and contains it until conditions are back

above dew point. The moisture is then released back into the air as vapour. Absorex is designed for easy application directly on the roll forming line of the steel metal at the roof manufacturer, where it is cut into sheets. This material, which is resistant to tearing and cutting through, has a self adhesive coating and a siliconised foil protection layer which is removed before application. There are three different materials in this range, with various qualities for water absorption – Absorex 416 09,5 CF 95 g/m 3 , Absorex 416 09, 11 CF 110 g/m 3 and Absorex 416 09, 14 CF 140 g/m 3 . This range is tested to stringent EN ISO 13501-1 specifications for fire retardancy, to meet new global standards for fire resistance, smoke development and burning

The Fibertex range of geotextiles includes Absorex, which is designed to control condensation and corrosion problems on metal and steel roofs in all climate conditions. This durable material also prevents mould drops. All roof panels applied with Absorex can be classified B-s1, d0. Absorex is also fungus tested to EN 14199 method A2 as a guarantee against mould growth. Absorex materials are currently produced at the Fibertex manufacturing facility in France, with localisation plans in place to manufacture this range at the Hammarsdale plant. Fibertex offers support to its extensive range of woven and non woven geotextiles with a technical advisory and back up service throughout Africa. 

Cordless impact drill Like all Makita’s 18V cordless range of tools, the DHP482ZJ Impact Driver Drill has been engineered using the latest technology.

Capacity

Steel Wood Masonry 13 mm 38 mm 13 mm Impact per minutes Hi: 0 – 28 500 Lo: 0 – 9 000

This model has a protective seal inside the tool which provides improved water resistance and dust protection to the internal components – engineered to improve operation in harsh conditions (XPT). The twin

This model includes the following: Variable speed, electric brake, reversing, mechanical 2-speed, keyless chuck, 21 torque settings and is supplied in a compact systainer case. The DHP482ZJ is compatible with the Makita 5 Ah (45 minutes charge time), 3 Ah (22 minutes charge time) and 1,5 Ah (15 minutes charge time) batteries. The batteries and the charger are sold separately. The

Lo: 0 – 600

No load speed (r/min) Hi: 0 – 1 900

Soft: 36 Nm

Max. fastening torque Hard: 62 Nm

rechargeable and eco-friendly 18V Li-Ion batteries provide longer run time. The LXT Li-Ion battery generates an impressive 430% more lifetime work with two-and-a-half times more cycles. 

LED lights on the front of the tool provide good illumination even in dark places, with a preglow and after- glow function.

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CONSTRUCTION WORLD JANUARY 2017