tender for addition alteration to bldg no. sm-1 at patiala under ge (south) patiala-- 1 notes: (i) please refer schedule a notes of tender documents. 2 dismantling of brick tiles or terracing tiles single layers on roofs complete all as specified and directed 3 demolition of mud phuska on roof any thickness complete all as specified and directed. 4 m&l for roughening surfaces of old concrete floor/roof by picking, sweeping clean and washing down with water to remove dust, etc. complete all as specified and directed. 5 m&l for pcc 1:3:6, type b-0 using 12.5mm graded stone aggregates as in padding over roof, minimum thickness at khurra as 25mm to maintain a slope of 1:100, complete all as specified and directed. 6 m&l for cutting grooves in brick wall, 75mm wide and 65mm deep and shaping horizontal face of groove with cement mortar 1:3 complete all as specified and directed. 7 m&l for providing and laying 3mm thick app (atactic polyproplene polymer) modified prefabricated five layer, weight not less than 4.0 kg/sqm water proofing membrane black finished, reinforced with non-woven polyster matt make as approved including of a coat of bitumen primer @ 0.40 ltr/sq.m by the same membrane manufacturer of density 0.87 to 0.89 kg/ltr at 25 degree c temperature and viscosity 70 - 160 cps over the coat, 3mm th 5 layered app membrane shall be laid using butane torch and sealling all joints etc after the surface complete as per standard practice as per manufacturers instructions. the vital physical and chemical parameters of the membrane shall be as under - (i) joint strength inlongitueinal and transverse direction at 23 degree c as 650/450n/5cms (ii) tear strength in longitudinal and transverse direction as 300 / 250 n/. softening point of membrane not less than 150 degree c cold flexibility upto 20 degree c when tested in accordance with astm (d05147) (iii) the laying of membrane shall be got done through the authorised applicator of manufacturer of membrane only complete all as specified and directed.