REPAIR/MAINT OF LEAKAGE/SEEPAGE FROM ROOF INCERTAIN BUILDING OF TECH AREA AT 3 BRD UNDER GE (AF) MC CHANDIGARH

Dismantling brick tiles or terracing tiles, single layer on roof and removal of unserviceable brick tiles / brick bats of rubbish outside defence land upto a distance exc 1.5Km but n.exc 5Km, complete all as specified and directed.

Taking down existing bitumen felt including cement mortar bedding padding and cleaning the surface and removal of all rubbish outside defence land upto a distance exc 1.5Km but n.exc 5Km, complete all as specified and directed.

Demolition of mud in roof, any thickness, including plastering and leaping (whether full thickness removed only a part thereof) and removal of all rubbish outside defence land upto a distance exc 1.5Km but n.exc 5Km, complete all as specified and directed.

M&L for PCC 1:2:4 type B-0 (12.5 mm graded crushed stone aggregate) as in padding on roof laid in 50mm thick average required thickness to maintain desired slope, finished even and fair without using extra cement, complete all as specified and directed.

Material and labour for rendering 15mm thick in cement mortar (1:3) using WPC @ 200ML per 50Kg bag of cement on surfaces of roof and parapet, finished even & fair without using extra cement, complete all as specified and directed. Note :- WPC shall be measured and paid separately.

Supply only Liquid water proofing compound complete all as specified and directed by Engineer-in-charge.

Material and Labour for 40mm thick brick tiles laid over and including 15mm thick cement screed bed in cement mortar (1:6) using grey cement and grouted flush in cement mortar (1:3) mixed with 5% of crude oil by weight of cement laid on concrete roof, complete all as specified and directed.

M&L for cleaning the surface before final treatment on roof as specified, applying the double layer of glass fibre mesh of 60 GSM over the roof using poly plastic fibre adhesive mix/Eazeecoat Ultra mix in the following manner :- (a) Making poly plastic fibre adhesive mix/Eazeecoat Ultra mix by adding polyplastic fibre adhesive/Eazeecoat Ultra and white cement in equal proportion and add 25% water in it to make the mixture per manufacturer instructions. (b) The double layer of fibre mesh to be spread on the roof & apply two coat of above mixture of poly plastic fibre adhesive/Eazeecoat Ultra with a roller & brush to cover the fibre mesh throughouly. (c) Process of roof lamination :- Lamination/top coat on the roof using poly plastic fibre coat/Eazeecoat Ultra with white cement & water as per manufacturer instructions. Top coat is ammonia free, w/o any harmful effects & is flexible in nature. (d) Minimum thickness of the treatment shall be 2mm. Make : Nerolac Perma / European Paints & Chemicals / Ever paint.

All as per item No. 8 here-in-before but as in chajjas.

M&L for removal of paint/putty etc from the wall using mechanical means as per manufacture instructions. Hacking of existing plastered surfaces upto 2mm. Note:- The wall treatment shall be done on hacked/new cementious surface for proper bonding & requsite results surface to be treated shall be passed by Engr-in-Charge. (a) Take Poly plastic fibre adhesive/ Eazee Coat Ultra, white cement in equal proporation & add 25% water in it to make the mix as per manufacturer instructions. Apply 2 coats of wall bind adhesive mixture to the wall using a roller & brush. (b) Final & top coat apply with mixing ratio of poly plastic fibre/ Eazee Coat Ultra top coat & water & white cement as per manufacturer instructions. Note:- The poly plastic fibre/ Eazee Coat Ultra should have following characterstics:- (a) Resists positive hydrostatic presure of upto 14 bars. (b) Crack filling ability upto 45mm. (c) Temp control upto 14 degree celcious on any surface like concrete roof, metal shed & for walls also. (d) High durablity to water, fire & UV rays covering climate condition to + 55 degree celcious. Make : Nerolac Perma/ European Paints & Chemicals/ Ever Paint.