Before starting the construction work, ensure that all necessary work permit and safety requirements are complete. Supervisor to check that safety personnel is available to monitor the construction activity before start of work.
HSE site engineer/office will ensure monitoring of the applicable PPE and especially the safety harness for all persons concerned with working at height.
A suitable scaffolding has to be provided for the roof shading construction works. Before allowing the workers to start the work make sure that scaffolding is having green tag i.e. safe for the working load.
Shifting of all required material to the working area shall be done either manually or using appropriate lifting equipment in case of heavy materials.
Method Of Statement for Installation of Roof Shading Louvers
Make sure that the wall on which anchor bolts shall be used is cleaned and issued for work from plastering and painting teams. Do the necessary markings for making the hole as per detailed installation drawing.
Make the holes using appropriate sized drill bits i.e. M-16 etc. Only authorized power tool shall be allowed at site with proper wires. Use blower to remove all the debris from inside the hole after drilling. Hammer the anchor bolts of approved size anchoring the shades/supports etc.
Fix the beam UB 305x102x28 welded with base plate 410x150x10mm on the anchor bolt. Check the alignment and level of beam frame welded with angle for cladding support. Ensure that all bolts and nuts are tightened properly and alignment is as per approved drawing.
Follow the same process for remaining beam frame. After fixing touch-up is carried on if necessary. Final inspection is carried out after touch-up work. The above mentioned procedure is carried in all location.
INSTALLATION OF COMPOSITE ALUMINUM CLADDING
For Aluminum Cladding, supporting angles 50x50x5 Aluminium angle will be fastened to the steel support with M6 nut and bolt.
Continuous Aluminum angle as per the approved drawing will be fixed on to the brackets by using nuts and bolts, so that it forms the sub framework.
Factory fabricated panels will be delivered to site and kept in the safe place.
These panels will be taken to the relevant position for installation and fixed to the Aluminum framework with the help of stainless steel screws as per the shop drawing.
The protective film will be removed at the folded side and cleaned.
Back-up rod shall be placed at the joint. Masking tape will be applied on both the side of the joints. These joints will then be filled with approved silicone.
The excess silicone will then be removed by spatula. After completion of silicone with proper finish the masking tapes will be removed. The Protective film will be removed manually only after the final completion of the cladding works.
PAINT SYSTEM TABLE
| PAINT SYSTEM | SURFACE PREPARATION | PRIMER | PAINT TOTAL DFT µm | ITEMS TO BE PAINTED | |
| TYPE | DFT µm | ||||
| AMERCOAT SYSTEM (FIRE RATED COATING FOR STEEL GUARD FM 549)
|
LIGHT SWEEP BLAST
|
AMERCOAT 278 | 75 | 75 | ALL STRUCTURAL STEEL FOR ALUMINIUM SHADING |
The steel surfaces to be grit blasted to SA 21/2 before galvanizing. Mechanical damage on galvanized surfaces where steel is exposed shall be spot blasted to Sa 2 ½ and primed with zinc rich epoxy primer before painting with AMERCOAT system.
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