REPAIR/ REPLACEMENT OF ROOFING, CEILING, TILING AND OTHER MISC B/R WORKS AT DGRE RDC, MANALI.

Dismantling plain or corrugated steel sheeting, any gauge, thickness roof coverings incl ridge complete all as specified and as directed by Engineer-in-Charge.

M&L for Pre- painted galvatume aluminum zinc coating GI based corrugated steel sheet 0.50mm thick of an colour having tensile strength of 550 Mpa as AZ 150 as in roof covering/cladding to wall, fixed with self tapping screws complete all as specified and as directed by Engineer-in-Charge.

M&L Pre- painted galvalume aluminium zinc coating GI based Plain steel sheet 0.5 mm thick of any colour having tensile strength of 550 Mpa as in ridges/ valley gutters, fixed with self tapping screw complete all as specified and as directed by Engineer-in-Charge.

S&F for two mm thickness Fibre glass reinforced translucent corrugated sheeting with two corrugations side lap fixed with coach screw and washer in roof, wall etc fixed with self tapping screws complete all as specified and as directed by Engineer-in-Charge.

M&L for galvanised, corrugated mild steel sheeting with two corrugations side lap, fixed with L-type or J-type or cranked hook bolts in lieu of screws , in roofs, walls etc. with grade of zinc coating 275 complete all as specified and as directed by Engineer-in-Charge.

Dismentling unframed timber scantlings 40 sq. cm and over in section, in any position complete all as specified and as directed by Engineer-in-Charge.

M&L for Mild steel work in tubular/channels/ angle.grider for trusses, purlins, vetical posts including special shaped washer, angle cleats, fish plates, gusset plates, base/ bearing plates, bolts and nuts etc. complete using ERW or induction butt welded tubes conforming to 1161-1979 grade st 240 Complete all as specified and directed by Engg-In- Charge.

M&L for preparation of new steel surfaces of any description over 10cm in width or girth not otherwise described and applying 2 coats of Synthetic enamel paint over a coat of red oxide primer, complete all as specified and as directed by Engineer-in-Charge.

Dismantling wall and ceiling board,of any description and incl old batterens complete all as specified and as directed by Engineer-in-Charge.

Supply & fixing inter locking metal grid (snap grid for false ceiling) of size 605 mm x 605 mm in true horizontal level, hot dipped galvanized steel sections (galvanized @ 120 grams/sqm, both side inclusive) consisting of main “T” runner with suitably spaced joints to get required length and of size 24 mm X 38 mm made from 0.30 mm thick (minimum) sheet, spaced at 1200 mm center to center and cross “T” of size 24 mm X 28 mm made of 0.30 mm thick (minimum) sheet, 1200 mm long spaced between main “T” at 600 mm center to center to form a grid of 1200 mm x 600 mm and secondary cross “T” of length 600 mm and size 24 mm X 28 mm made of 0.30 mm thick (minimum) sheet to be interlocked at middle of the 1200 mm X 600 mm panel to form grids of 600 mm X 600 mm and wall angle of size 24 mm X 24 mm X 0.4 mm. Main “T” runners to be suspended from ceiling using GI slotted cleats of size 27 mm X 37 mm X 25 mm X 1.6 mm fixed to ceiling with 12.5 mm dia and 50 mm long dash fasteners, 4 mm GI adjustable rods with galvanised butterfly level clips of size 85 mm X 30 mm X 0.8 mm spaced at 1200 mm center to center along main T, bottom exposed width of 24 mm of all T-sections shall be pre-painted with polyester paint, 8 mm thick Calcium Silicate Board made with Calcareous & Siliceous materials reinforced with cellulose fiber manufactured through autoclaving process complete all as specified and directed.