82654/E8 SPECIAL REPAIR TO CERTAIN OMQs AND SMQs AT AFS SULUR

M&L complete removal of existing water proofing treatment on roof, parapets, chimney stacks etc laid horizontally or vertically including taking out layer of cement plaster etc. and applying new water proofing treatment as per following procedure complete all as specified and as directed :-

(a) Remove all existing bitumen coatings /existing treatment on roof completely and surface shall be make free from any loose paint, dust or grease by intense wire brushing, high speed water jet & vacuum cleaner for thorough cleaning of the surface to avoid ‘Peeling off’ problems. (b) All cracks at corner joints, channels and parapets should be properly treated. For filling cracks upto 3mm, crack seal material of M/s Asian paints / M/s Dr Fixit / M/s Pidilite / M/s Sika chemical / or any other approved manufacturer shall be used. Bigger cracks, damaged portions & hollow areas must be repaired with polymer modified cement mortar. (c) Apply a coat of self priming smart care damp proof ultra (Code 5698) of M/s Asian paints or equivalent in M/s Dr Fixit or M/s Pidilite or M/s Sika chemical with 33% dilution with water using brush/roller on newly plastered surface after curing as per IS-456 and allow to dry for 4 to 6 hours (dilution & forced coverage requirement strictly as per manufacturer’s instructions). (d) After the primed surface has dried, apply first coat of water proofing smart care damp proof ultra (Code 5698) of M/s Asian paints or equivalent in M/s Dr Fixit or M/s Pidilite or M/s Sika chemical using brush/roller on the same primed surface & allow to dry for 4 to 6 hours. (e) Prepare for apply 2nd coat of water proofing smart care damp proof ultra (Code 5698) of M/s Asian paints or equivalent in M/s Dr Fixit or M/s Pidilite or M/s Sika chemical using brush/roller on the same surface. The temp to be maintained 25 to 35° C through out the all above application work. (f) In case of severe dampness an additional coat of damp proof materials to be applied.