HWPT/Civil/Colony/08/2026

Providing and applying in situ water proofing treatment over clay terrace tiles of size 230 mm x 230 mm in the roof of residential buildings and cement plastered area over chajjas with acrylic polymer based coatings consisting of surface cleaning by pressurized water wash using power gun including removal of dirt, algae, fungi, loose pointing mortar etc.., and preparing the surface of terrace tiles fit for acrylic polymer coating, providing and applying one coat of acrylic polymer mixed with grey cement (proportion not leaner than, 1 acrylic polymer : 1 grey cement : 1 water) to required consistency over entire surface area of terrace tiles, pointing terrace tiles and providing haunge along roof/wall joints and sealing cracks in wall/roof by doing V-groove cut wherever required using Acrylic polymer based cement mortar (proportion not leaner than, 1 acrylic polymer : 2 grey cement : 1 water) to required consistency, providing and laying 110 G.S.M fiber cloth over haunge along roof/wall joints and merging with acrylic polymer mixed with grey cement (proportion not leaner than, 1 acrylic polymer : 1 grey cement : 1 water) to required consistency, providing and applying one coat of acrylic polymer mixed with white cement (proportion not leaner than, 1 acrylic polymer : 1 white cement : 1 water) to required consistency over entire surface area of terrace tiles including haunges, providing and applying two coats of Insultec (Insultec with re-radiating UVR/IRR content-white/terracotta color) water proofing membrane mixed with water (proportion not leaner than, 4 Insultec : 1 water) to required consistency over entire surface area of terrace tiles including haunges including cost of all materials, labour charges, adopting all safety measures, scaffolding etc.., all complete at all levels as per drawings, specifications and as directed by Engineer. Note: The contractor shall furnish guarantee as per appendix D for maintaining the roof leak proof for a minimum period of 05 (five) years. If any defects occur during guarantee period, the contractor shall rectify the same within three days of intimation at their own cost to the satisfaction of the department failing which course of action as per the decision of HWPT shall be final and binding on contractor.