The purpose of the project was to replace the existing timber structure which was deflecting and collapsing after 70 years of service. The brief to the architect was that the structure should comply with the heritage of the building, keeping the appearance consistent with the existing structure while complying with established building regulations.
While timber was originally considered, a light steel frame solution was ultimately chosen due to its long service period. Profiled sections were used, with the profiles differing according to the strength required for each truss design. The entire roof was assembled on ground level in sections and then hoisted to roof level with a mobile crane. The floor level assembly, which made handling easier was made possible by creating a wallplate level replica of the building at a lower more easily accessible platform. In terms of cladding the roof structure, the 60-degree pitch was a challenge for safe working conditions with long sheet lengths.
All teams needed to communicate effectively from the start, as the existing roof had an asbestos slate which needed to be removed first. At a public school, this poses many challenges to co-ordinate the time of removal without interfering with the day to day school process. During the construction phase areas had to be cordoned off to prevent access during overhead hoisting and installation of large sections of the Light Steel Frame roof structure
Project motivation editorials are provided by the project nominator. If any technical details, company names or product names are incorrect, please notify the SAISC so that the error can be corrected.
|LSFB / LIGHT STEEL FRAME BUILDING WORK|
|Completion date of LSFB work||03 DEC 2018 – 31 JAN 2019|
|Completion date of full project||05 OCT 2018 – 30 APRIL 2019|
|Tons of LSF used||15.162 TON|
|Span of trusses and Kg/m2 (if applicable)||6350 – 18600mm|
|Profiles used||MITEK ULTRA-SPAN|
|Type of cladding||METAL SHEETS|
|Completion date of cladding||30 APRIL 2019|
|Cladding profile/ type used||0.53 AZ200 SAFLOK 700 – RAINCLOUD COLORPLUS|
|Cladding area/ coverage and tonnage||1790M2|
|Client/ Developer||Western Cape Education Department|
|Structural Engineer||Nadeson Consulting Serv|
|Engineer||Mitek Industries SA|
|Quantity Surveyor||Aveng Grinaker-LTA|
|Project Manager||Aveng Grinaker-LTA|
|Main Contractor||Aveng Grinaker-LTA|
|Steelwork Contractor||Elegant Roofing|
|Steel Erector||Elegant Roofing|
|Cladding Manufacturer||SAFAL Group|
|Cladding Supplier||Safintra Roofing|
|Cladding Contractor||Elegant Roofing|
If you were a part of this project, and your company details are incorrect or missing – please notify the SAISC so that the error can be corrected.