Name of Work:- ROOF TREATMENT WORKS AT THE ROOF OF M.N.SAHA(NORTH PORTION) AT RAJABAZAR SCIENCE COLLEGE C US, C.U.
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Item Description
1
Taking out old damaged tarfelt from the roof, parapet etc. preparing the roof surfaces by removing all spoils, blisters, moss etc. from the working site and disposal the same beyond the compound and cleaning the site in all respect as per direction of Engineer-in- charge.
2
Supplying & laying 30mm thick pre fabricated plastomeric water proofing membrane conforming to EN 12311-1 & ASTMD 5147, manufactured with atactic poly propylene (APP) modified premium grade asphalt, specially reinforced with non- woven polyester core with polyester reinforced @160 gms per sqm & both faces cover with thermo fusible polythene film/ mineral on top face over a coat of primer @ 0.40lit/sqm of manufacturer’s specification on smooth, clean dry surface prepared wherever required lap joint shall be provided of 75 mm in longitudinal & 100mm in transverse direction and fused using LPG/propane torch employing extra care ensuring full bondage, complete removal of entrapped air and sealing edges into grooves in appropriate manner as per direction of Engineer in charge all complete including materials, labour and applicable taxes.
3
Plaster ( to wall, floor, ceiling etc.) with sand and cement mortar including rounding off or chamfering corners as directed and ranking out joints including throating , nosing and drip course, scaffolding/staging where necessaryWith 1:6 cement mortar 25 mm thick plaster
4
Preparation of drainage spout on roof for bituminous waterproofing treatment after required grading and shaping of the under bed with cement mortar (1:4) as directed chamfering and moulding the parapet wall to form a bell mouth entry if required and providing full course treatment with bituminous felt to facilitate quick and smooth drainage of water into the downpipes complete including cost of all materials and labour according to satisfaction of the Engineer- in –charge
5
Removal of rubbish, earth etc from the working site and disposal of the same beyond the compound in conformity with the Municipal/Corporation rules for such disposal, loading in to truck and cleaning the site in all respect as per direction of Engineer in charge.
6
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