SPECIAL REPAIRS TO ROOF TREATMENT OF SMA QUARTERS P- 29, P-31 and P-77 AT NAVAL BASE KARWAR

Dismantling of single layer Mangalore pattern or similar tiles in roofing, complete all as specified and directed.

M&L for roof tiles, Mangalore pattern Class 'AA', interlocking at side joints, laid dry, complete all as specified and directed.

All as per Sr Item No. 02 above, but excluding tiles, complete all as specified and directed.

M&L for ridge or hip tiles to suit Mangalore pattern roofing tiles, bedded and jointed in cement mortar 1:6, complete all as specified and directed.

Demolition of cement concrete of any description and in any position, complete all as specified and directed.

M&L for cement concrete type 1:2:4 B-0 using 12.5mm graded stone aggregate as in roof kerbs/paddings/mud-stops or bedding for tiles etc., including chamfered edges, complete all as specified and directed.

Dismantling/taking out existing textile coverings including frames (if any) or hessian base felt or any other existing waterproofing treatment from roof, including removing existing cement plaster and exposing the top surface of RCC slab, and removing dismantled material etc., complete all as specified and directed.

M&L for providing 15 mm thick rendering over roof slab in cement mortar (1:4) mixed with waterproofing compound @ 1 by weight of cement (or as per manufacturer’s instructions, whichever is higher), finished even and smooth without using extra cement, complete all as specified and directed. Note: Waterproofing compound shall be measured and paid separately.

M&L for waterproofing treatment by applying oil bound bitumen primer having density 0.87–0.89 kg/litre at the rate of 0.40 litre/sqm, providing and laying 3 mm thick APP modified waterproofing membrane weighing not less than 3 kg/sqm of approved make, including minimum 10 cm side lap and 15 cm end lap, laid and pasted with blue flame torching application, and finally finishing with solar reflective bituminous aluminium paint @ 0.1 kg/sqm, complete all as specified and directed.

M&L for the following: (i) Cleaning the surface free of dirt, dust, laitance etc. using wire brush, grinding machine and water jet machine and allowing the surface to dry. Opening the cracks, if any, in V/U shape using electrically operated cutting machine. Cleaning the surface thoroughly from dust and loose particles using wire brush and air blower and treating with crack filler. (ii) After proper cleaning, opening the debonded surface at the terrace area and removing the same completely; cleaning the surface; applying one coat of bonding agent of Home Shield Advance Latex Plus or equivalent (direct material) and allowing it to dry for 30 minutes; and filling the area with cement, sand, water and Advance Latex Plus completely to achieve proper bonding with old surface and to ensure flow of water to the outlets. (iii) Supplying and applying Berger Paints Home Shield Super Latex Plus or equivalent as bond coat over the cleaned surface, and allowing it to dry for 2–3 hours for proper penetration of the material and sealing maximum porosity inside the concrete slab. (iv) Supplying and applying water-based Elastomeric PU membrane having good crack bridging and waterproofing property over the concrete surface (Berger PU Roofkoat) in 2 coats (one coat in vertical direction and one coat in horizontal direction) to provide better waterproofing to the existing terrace surface and parapet wall and to ensure better bonding for longer period, complete all as per manufacturer’s instructions and as directed.

Supply only integral waterproofing compound, complete all as specified and directed.

Taking down cement plaster on brick or concrete surfaces of walls/ceiling and the like, including racking out joints, hacking for keys, scrubbing down with water etc., of any description, including removal of rubbish outside MoD land, complete all as specified and directed. Note: The rate quoted shall be deemed to include necessary scaffolding and formwork.

Finishing walls with acrylic smooth exterior paint of required shades: New work (two coats @ 1.67 litre/10 sqm over and including priming coat of exterior primer applied @ 2.20 kg/10 sqm on new plastered surfaces), complete all as specified and directed.

M&L for plastering 5 mm thick in cement mortar 1:3 on ceiling surfaces and finishing the surface even and smooth, complete all as specified and directed.

M&L for preparation of new plastered surfaces of ceilings and applying 3 mm wall care putty and two coats acrylic washable distemper, complete all as specified and directed.

Material and labour for rendering 15 mm thick on brick or concrete surfaces in cement mortar 1:6, complete all as specified and directed.

Material and labour for applying 3 mm thick wall care putty on new plastered wall surfaces, including preparation of surfaces by brooming down or steel wire brushing, scraping down smoke soot, moulds, moss and efflorescent salts, and treating oil and greasy spots etc., complete, and applying two coats of distemper etc., complete all as specified and directed.

Taking up or down steel tubing and connections 25 mm bore, including cleaning and stacking/removal to store, complete all as specified and directed.

Taking up or down GI tubing and connections 32 mm bore, including cleaning and stacking/removal to store, complete all as specified and directed.

S&F 25 mm dia uPVC pipes of pressure rating 10 kgf/cm², fixed complete to walls, ceiling or in floors etc., complete all as specified and directed.

S&F 32 mm dia uPVC pipes of pressure rating 10 kgf/cm², fixed complete to walls, ceiling or in floors etc., complete all as specified and directed.

Taking down eaves gutters and rainwater pipes (any size or pattern), including all fittings, heads, shoes, bends, swan-necks etc., complete all as specified and directed.

M&L for PVC (SWR) pipe, single socketed in any length with rubber ring joints, fixed to wall, 110 mm bore, complete all as specified and directed.

S&F 100 mm dia PVC (SWR) bend, complete all as specified and directed.

S&F PVC (SWR) bends any radius for 100 mm bore, provided with access door, complete all as specified and directed.

Dismantling of PVC/RCC water storage tank of capacity exceeding 500 litre but not exceeding 1000 litre, including removal of rubbish outside MoD land, complete all as specified and directed.

S&F rotational moulded polythene water storage tank, triple‑layered, dust‑proof, ISI marked, cylindrical vertical with closed top, hoisted and fixed in position, capacity 1000 litres, including all the necessary fittings & fixtures to connect with existing pipeline complete all as specified and directed.

S&F in repairs 25 mm dia PTMT ball valve, high pressure, with epoxy coated aluminium rod and high density plastic ball, ISI marked (minimum weight 455 gms), screwed and suitable for iron pipe 25 mm bore, complete all as specified and directed.

Draining out water, cleaning and removing accumulated sludge/dirt/scales from tank bottom, sides and from mouths of circulating pipes of service tank of capacity exceeding 500 litre but not exceeding 1000 litre, located on roof of the building, disinfecting the tank using bleaching powder to make the tank bacteria free, and writing by stencil date of cleaning of tank with white synthetic enamel paint on black ground “CLEANED ON (DATE)”, height of letters 100 mm, complete all as specified and directed.

Material and labour for complete removal of existing painted surface and preparation of surfaces by brooming down or steel wire brushing, scraping down smoke soot, moulds, moss and efflorescent salts, and treating oil and greasy spots etc., and applying 3 mm thick wall care putty on old plastered surfaces of wall/ceiling complete, and applying two coats of acrylic washable distemper etc., complete all as specified and directed.

Material and labour for preparation of old painted plastered surfaces of walls/ceiling of any description including cornices, filling of cracks with exterior wall care putty, and applying two coats of acrylic emulsion exterior grade, weatherproof, anti-fungal, anti-algae and anti-fading, of approved shade, including necessary scaffolding and safety measures as required, complete all as specified and directed.

Material and labour for preparation of old painted wooden surfaces of any description not otherwise described, over 10 cm width or girth, and applying one coat of synthetic enamel paint, including necessary scaffolding and safety measures as required, complete all as specified and directed.

Material and labour for preparation of old painted steel surfaces of any description not otherwise described, over 10 cm width or girth, and applying one coat of synthetic enamel paint, including necessary scaffolding and safety measures as required, complete all as specified and directed.

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