REPAIR TO ROOF, WALL, CHAJJA ETC AT SMQ, PRATAP NAGAR AND NSB INS SHIVAJI LONAVLA

Completely removing existing water proofing treatment of any descriptions and any type including top layer of plaster / china mosaic wherever occurs over roof and chhajja surfaces and scrubbing the surface with wire brush and cleaning wash down with water to receive new cement plaster / PCC layer and removing the waste material / debris to a distance exc. 1500m but n.exc. 2000m etc complete all as specified and directed by Engineer-in-Charge

M/L for rendering 10mm thick in cm 1:4 on concrete roof and chajja surface to get a uniform level surface for laying of membrane treatment all as directed by Engineer-in-Charge

M/L for PCC 1:2:4 type B-1 (using 20mm graded agg) for PCC padding on RCC roof surface finished even and smoother using extra cement all as specified and directed by Engineer-in-Charge.

Supply only Integral waterproofing compound.

M & L for Premix Dr. Fixit Wonderproof 100 Components A and B using an electric double-paddle mixer for 2–3 minutes at low speed. Apply the first coat of Dr. Fixit Wonderproof 100 at a rate of 0.80–0.90 kg/m² without dilution, using a lamb’s wool or cloth roller. While the coating is still wet, roll and embed a 225 gsm Fiberglass Chopped Strand Mat, ensuring full bonding without air bubbles or wrinkles. Allow the first coat to dry for 3–4 hours. Apply the second coat at a 90° angle to the first. Overlap the chopped strand mat by at least 5 cm at the joints, ensuring the overlaps are sufficiently wet to achieve proper bonding. Once the surface is dry enough to walk on, apply the second coat at 0.70–0.80 kg/m². Apply additional coats as needed to achieve a total dry film thickness of 900–1000 microns, with a total system material consumption of 1.50 - 1.60 kg/m² over 2–3 coats. Note – Coating should be terminated below the drip mould on the vertical surface. The material has followed technical properties: Attains a Tensile Strength ≥ 18 N/mm2 as per ASTM D 2370; Crack bridging ability, Tear Strength ≥ 160 N/mm as per ASTM D 624, Dynamic Crack bridging as per EN 13251:2016 - No Cracks after 20000 sinusoidal cycles, Dynamic Crack bridging as per ASTM C 1305-2016 - Pass, No Crack, Pass Low Temperature Flexibility (-20 after 1000 Hrs. UV as per ASTM D 1970-2021, Shore A as per ASTM D2240 – 85 , Peel Adhesion to Concrete under wet Condition -24 Hrs. – N As per ASTM C 794 – 11.4 , Abrasion resistance (CS 17 Wheel -1000 Cycle, 1.0 Kg) as per ASTM D 4060 - 7 mg , Depth of Water Permeability @ 10 Bar as per EN 12390-8-2019 – Nil , Water Migratlon Resistance as per ASTM D 7281,-2007 - No Leakage, Pass Spread of flame Class A. Complies with the requirements of EN 13251:2016 for a 25-year service life when used with a 225 gsm Fiberglass Chopped Strand Mat as fleece. The system comes with 10 Years’ waterproofing warranty from M/S Pidilite Industries LTD. For vertical surfaces and parapet walls should be enveloped & coated / painted with Dr. Fixit Raincoat Classic or Dr. Fixit Raincoat Select Waterproof coating system.

Disconnecting existing tanks of any capacity setting aside (or lowering if required) for repairs, cleaning, etc. and hoisting if required reconnecting and re-fixing in position after carrying out Roof treatment with all accessories all as specified and directed by Engineer-in-Charge.

Taking up or down steel tubing and connections, 25 mm bore including cleaning for re-fixing complete all as specified and as directed by Engineer-in-Charge.

S&F steel Tubing, ‘medium grade’ galvanised, 25 mm bore with all fitting and fixed complete to walls and ceilings or laid in floors

S&F in repairs water storage tanks of 1000 ltrs capacity rotational moulded (Triple layered cylindrical vertical with closed top) hoisted and fixed in position including taking down old tank complete all as specified and directed by Engineer-in-Charge.

Dismantling Mangalore pattern roofing tiles single layer including ridge tiles.