Water Proofing Treatment on roof of Govt. Resi. Qtrs. in Sect. No. 15,16 and 20 under RTC Sub Dn, PWD Bhopal

Water Proofing Treatment on roof of Govt. Resi. Qtrs. in Sect. No. 15,16 and 20 under RTC Sub Dn, PWD Bhopal

Bill of Quantities (BOQ)

Probable Amount of contract :

(Rs. in Figures) : Rs. 80.00 Lacs

(Rs in words) : Rupees

Time Alloved : 09 months

Painting with aluminium paint of approved brand and manufacture to give an even shade. Two or more coats on new work.

Providing and laying APP (Atactic Polypropylene Polymer) modified prefabricated five layer 3mm thick water proofing membrane, black finished reinforced with non-woven polyester matt consisting of a coat of bitumen primer for bitumen membrane @ 0.40 ltr/sqm. by the same membrane manufacture of density at 23°C as 650/450N/5cm. Tear strength in longitudinal and transverse direction as 300/250N. Softening point of membrane not less than 150°C. Cold flexibility shall be upto -2°C when tested in accordance with ASTM, D - 5147. The laying of membrane shall be got done through the authorised applicator of the manufacturer of membrane: (with 5 years service guarantee).

(i) Surface preparation roughening of surface, opening cracks in ‘V’ groove in size of 5mmX10mm (WXD), filling of cracks with putty with laying fiber glass mesh, Cleaning of surface by scrubbing with steel wire/Nylon brush. Removing all dust particles and washing with adequate water to clean completely.

(ii) Providing and applying 1st coat of fibre glass mesh (minimum thicknes 70-80 micron) and two component flexible waterproof and protective modified mortar, dry powder 80% chemical 20% acrylic resin having 30% solid contents) with mix proportion of part 1 and 2 with proper mixing with laying of fiber glass mesh (of weaving size of 10X10 yarn/inch duly coated with alkaline resistant polymer). Allow the coating to air cure for minimum 2 Hrs. After two hours of 1st coat applying 2nd coat (minimum thickness 100 micron) of fibre glass mesh of with mix proporation of part 1 and 2 with proper mixing. Allow the coating to air cure for minimum 2 hrs. Consumption of two component should be acrylic resin @17.90 kg for 10 sqm area or as per manufacture instructions. (After two coats of diamond shield, surface is to be cured properly minimum for 4 hrs. before application of third coat).

(iii) Providing and applying 1st coat of sealer coat 50-60 micron (single component Hight build elastomeric, fixable pure acrylic waterproofing membrane having solid content of 65%) and allow it to air cure for 4Hrs. minimum. After two hours minimum of 1st coat applying 2nd and finals coat 120-140 micron of sealer coat and allow it to air cure for 4 Hrs mimimum. Consumption of Sealer coat should be @ 5.40 kg per 10 sqm area.

(iv) The treated area should be cure with water for 48 hrs. by flooding the surface.

(v) The final appearance of the coating will be milky white. All above operations to be done in order.(five years guarantee)

Providing & applying crack fill paste for crack filling up to 5 mm cracks.Widen the crack by putty knife in V/U shape & apply 1st priming coat of crack fill paste diluted with water in 1:1 proportion over the crack by brush. Apply 2nd coat with filling of crack fill paste when the surface is tacky but not dried completely with putty knife & spatula.After 4 hours of application 2nd coat apply 3rd coat of Crack fill paste. The work shall be carried out as recommended by the manufacturer’s specification & the direction of the Engineer-in-Charge

Note – Including other item ( if required ) of SHEDULE OF RATES (SOR) For BUILDING

WORKS in force from January, 1st 2024, of Engineer-In-Chief (Building) M.P. Public

Works Department M.P.BHOPAL ( Volume- I & II )

Sub Engineer Sub Divisional Officer Executive Engineer Sec. 15, 16, 20 P.W.D. RTC Sub Dn. P.W.D. New Bhopal Division Bhopal Bhopal.