Roof Changing at ITI Haflong

Amount

Dismantling roofing including ridging,hips,valleys and gutter etc.stocking the materials with in 50m lead of. 15.28.2 Asbestos cement Sheet In Administrative Block

Dismantling cement asbestos or other hard board ceiling or partion walls including stacking of serviceable materials and disposal of unserviceable materials with in 50m lead. In Administrative Block

Dismantling wood work in frame,trusses,purlin and rafter upto 10m span and 5m ht. Including stacking the material with in 50m lead of. 15.14.1 of sectional area 40 sq centimetre & above. In Frame of: Ver of Ad. Block ,Lab,Trg class room

Providing wood work in frames of doors,windows,clerestory windows and other frames,wrought framed and fixed in position with hold fast lugs or with dash fasteners of required dia & length(hold fast –etc. 9.1.3: Kiln seasoned and chemically treated hillock wood

Providing corrugated G.S.sheet roofing including vertical/curved surface fixed with polymer coated J or L hooks,bolts and nuts 8mm diameter with bitumen and G.I limpet washers or with G.I limpet washers fitted with white lead,including a coat of ---required) 12.1.3- 0.63mm thick with Zinc coating not less than 275 gm/m2

Providing ridges or hip of width 60cm overall width plainG.S. sheet fixed with polymer coated J or L hooks,bolts and nuts 8mm dia G.I limpet and bitumen washers complete. 12.4.2- 0.63mm thick with Zinc coating not less than 275 gm/m2

Providing and fixing plain multipurpose cement board(high pressure steam cured)with suitable screws for cement plaster board in ceiling etc.complete(frame work to be paid separately) 12.26.1-6mm thick cement fiber board as per IS:14862

David Phonglo