ADDITION/ ALTERATION AND SPECIAL REPAIR TO ROOF TREATMENT OF SMA QUATERS (P-32, P-33, P-34 and P-76) AT KADAMBA VANAM NAVAL BASE KARWAR

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

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

All as per Item No. 2 above, but except tiles.

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

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

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

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

M&L for providing 15mm thick rendering over roof slab in cement mortar 1:4 mixed with water proofing compound at the rate as per manufacturer's instructions finished even and smooth surface without using extra cement all as specified and directed. Note:- WPC shall be measured and paid seperately.

M&L for water proofing treatment by applying oil bound bitumen primer, having a density of 0.87 - 0.89 Kg/lit, @ 0.40 ltrs/Sqm, providing and laying not less than 3mm thick APP modified water proofing membrane weighting not les than 3.60 Kg/Sqm of approved make including minimum 10 cm side lap and 15 cm end lap, laid and pasted with blue flame torching applications and finally finishing with two coats of solar reflective bituminous aluminium paint @ 0.1.Kg/Sqm all as specified and directed. Note:- The entire job shall be done through authorised applicator of approved make only.

M&L for waterproofing treatment by preparing new/old plastered or concrete surface including complete removal of existing treatment, filling cracks with manufacturer’s recommended crack filler, applying one coat of respective primer @ 0.125 litres per Sqm and two coats of waterproof coating system (Shalicryl-215 of STP Ltd / Raincoat-601 of Dr. Fixit / Barrier Coat of Araldite) each coat applied @ 0.155 litres per Sqm, complete all as specified and directed. Note:- The entire job shall be done through authorised applicator of approved make only.