Military Engineer Services Tender

Removal of any type of existing roof treatment (brick tiles, mud Phuska, PCC, tar felt etc) in any number of layer up to original RCC roof top slab surface, including demolition of PCC coping etc and disposal thereof outside the defence land, complete all as specified and directed by Engr-in-charge.

Procedure of roof treatment:- (i) Clean the roof:- M&L for preparation of surface by scrapping and properly cleaning the surface by removing loose/ uneven particles with wire brushes and other tools, complete in all respect (ii) Make small repairs and rendering:- Filling of cracks with smart Care Hybried PU sealant wherever requiered and applying 15mm thick rendering in CM 1:4 alongwith covering and applying smart care damp proof ultra and assure proper curing of plaster complete all as specified and directed by Engr-in-charge. (iii) Laying of membrane and undiluted coats:- Laying of fiber reinforced elastomeric liquid water proofing membrane formulated with PU hybrid polymers and reinforcing acrylic fibres with sun Reflectivity Index (SRI) of 105 on top of roof in three coats @ 1.2 litre/ sqm to be reinforced with 45 GSM fiber mesh, having minimum elongation of 350%, tensile strength 2.9 Mp and shall have crack bridging ability upto 2.5 mm and shall resist 10 bars of hydrostatic pressure, reduces surface temperature upto 10 degree celsius. The system conists of self priming with 33% ditution followed by two undiluted coats (dry film thickness of complete appliaction/ system not less than 500 microns). (iv) Ponding test:- Ponding test shall be done after application of material

Note:- (a) Appliaction of water proofing treatment will be done by Authorised Applicator only as per MOU between tenderer and manufacturer of PU liquid water proofing membrane and their authorized appliactor complete all as specified and directed. (b) The contractor shall upload MOU between tenderer and manufacturer of PU liquid water proofing membrane and their authorized applicator before quoting the bids in Technical Bid (Cover I) and submit the same alogwith tender and other documents as mentioned in NIT. Make : Asain Paints/ Berger paints/Sika etc The Make shall be of same manufacturer of which the MOU signed and submitted by contractor in Cover-I. No change of make/ manufacturer other than MOU shall be allowed without the prior approval of Accepting officer. (c) Shifting/ removing of any wire/ cable/ AC unit or other any object as per site requirement and re-fixing the same if needed is deemed to be included in the rate quoted by the contractor. (d) Total removal of vegetation/creepers/small plants/ roots from the top of the bldgs to facilitate the work of treatment is also deemed to be included in the rate of contractor.