NEWSWORTHY
GBCSA ANNOUNCES RECORD NUMBER OF CERTIFICATIONS
The Green Building Council South Africa ( GBCSA ) announced that 140 buildings were certified over the past year – a record number , illustrating the growing momentum of green building in South Africa . The announcement was made during the GBCSA ’ s recent Green Building Convention . “ Certified green buildings held their own as far as vacancy and return rates go over the past year . Property owners , tenants and investors are now insisting on better , certified green buildings , as the environmental and financial benefits of these become indisputable . To date , the GBCSA has certified 740 buildings since 2009 ,” said GBCSA CEO , Lisa Reynolds . Reynolds said that the 140 certifications during a challenging Covid year was significant and spoke to a growing green building movement . She also commended the built environment community for driving the movement , saying “ we do the certifications , but you make the commitment ”. GBCSA also announced the winners of its annual Leadership Awards at the closing plenary of the Convention . The awards are based on submission data gathered during the Green Star certification process , and individuals are nominated by the industry . The Ridge at the V & A Waterfront won the award for the Highest Rated Building . It is rated 6-Star Green Star Office Design v1.1 ( Caption ) Mike Munnik of Agama Energy accepting the award for Highest Rated Building from Lisa Reynolds .
SOLUTION TO CORROSION OF FASTENERS ON ZINC- ALUMINIUM ROOFS
A real issue exists within the metal roofing and cladding industry , with regards to roofing in coastal belts . Zinc-aluminium ( AZ ) roof sheeting and cladding work remarkably well within proximity to coastal marine environments - as close as 50m for AZ200 material . Based on the performance that it delivers , AZ material is cost-effective and practical .
The Dilemma According to ISO 9223 , 50m from a marine environment can be considered a Class 5 ( C5-M ) corrosion category environment . Even though AZ200 material can be used in a C5-M environment Class 4 fasteners are not meant to be used in this setting .
Why not use Class 5 fasteners ? Class 5 fasteners are stainless steel , stainless steel is non-compatible with AZ material . Class 4 fasteners are being supplied with AZ200 material in a Class 5 environment . Within 2 – 5 years the Class 4 fastener starts corroding prematurely . Replacement Class 4 fasteners are supplied to replace the corroded fasteners and in 2-5 years you will need to replace them again , which is not ideal .
The Solution Corroshield South Africa noticed this trend and set out to find a solution . In 2016 they engaged their manufacturer , AZ material manufacturers , and customers . They needed a Class 4 fastener shank that was compatible with AZ material and a fastener head that can withstand severe corrosive conditions .
In 2018 the PROTAPP Fastener was born . This PROTAPP Fastener is a Class 4 shank with a non-metallic head made up of Nylon and other polymers with UV stabilisers to withstand the South African UV rays . The fastener is unique in that you don ’ t need to install a plastic cap on top of the screw - now it comes all in one . The nylon head also alleviates any rusting caused by damage to powder-coated colour screws during installation , where the coating was sometimes damaged , allowing rust to form .
If you require Technical Data Sheets or Test Results or to trial PROTAPP fasteners , please contact Corroshield South Africa for further information .
Email : info @ corroshield . co . za Web : www . corroshield . co . za
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