ROOF STRUCTURE, COVERINGS AND RAIN WATER

DISPOSAL

Structural framed steel work

Supply, fabricate, hoist, erect and fix the following 5No. mild steel
trusses T38,49,43,54,52,55,58 grinding all welds smooth and
priming with two coats of approved metal primer all to Structural
Engineer's details

40 x 40 x 2mm Rafters 64.8 Lm 14,000.0 907,200.0

40 x 40 x 2mm Tie beams 54 Lm 14,000.0 756,000.0

40 x 40 x 2mm Struts and ties 108 Lm 14,000.0 1,512,000.0

180 x 180 x 6mm Thick mild steel base plate welded to steel
beams (measured separately) four times holed 10mm diameter
bolts 36 No 12,000.0 432,000.0

10mm Diameter grade 8.8 250mm long bolts complete with

heads, nuts and washers and bedded in concrete beams 144 No 2,500.0 360,000.0

Supply, fabricate, hoist, erect and fix the following 1No. mild steel
truss T37,40,55 grinding all welds smooth and priming with two
coats of approved metal primer all to Structural Engineer's details

40 x 40 x 2mm Rafters 54 Lm 14,000.0 756,000.0

40 x 40 x 2mm Tie beams 43.2 Lm 14,000.0 604,800.0

40 x 40 x 2mm Struts and ties 84 Lm 14,000.0 1,176,000.0

180 x 180 x 8mm Thick mild steel base plate welded to steel
beams (measured separately) four times holed 10mm diameter
bolts
12 No 12,000.0 144,000.0

10mm Diameter grade 8.8 250mm long bolts complete with

heads, nuts and washers and bedded in concrete beams
48 No 2,500.0 120,000.0

Supply, fabricate, hoist, erect and fix the following 1No. mild steel
truss T36,41,45,53,31,56 grinding all welds smooth and priming
with two coats of approved metal primer all to Structural
Engineer's details

40 x 40 x 2mm Rafters 119.7 Lm 14,000.0 1,675,800.0

40 x 40 x 2mm Tie beams 112.5 Lm 14,000.0 1,575,000.0

40 x 40 x 2mm Struts and ties 100.8 Lm 14,000.0 1,411,200.0

180 x 180 x 8mm Thick mild steel base plate welded to steel
beams (measured separately) four times holed 10mm diameter
bolts 18 No 12,000.0 216,000.0

10mm Diameter grade 8.8 250mm long bolts complete with

heads, nuts and washers and bedded in concrete beams
72 No 2,500.0 180,000.0
Supply, fabricate, hoist, erect and fix the following 1No. mild steel
truss T35,42,56,57,60,59 grinding all welds smooth and priming
with two coats of approved metal primer all to Structural
Engineer's details

40 x 40 x 2mm Rafters 330 Lm 14,000.0 4,620,000.0

40 x 40 x 2mm Tie beams 275.22 Lm 14,000.0 3,853,080.0

40 x 40 x 2mm Struts and ties 104 Lm 14,000.0 1,456,000.0

180 x 180 x 8mm Thick mild steel base plate welded to steel
beams (measured separately) four times holed 10mm diameter
bolts
33 No 12,000.0 396,000.0

10mm Diameter grade 8.8 250mm long bolts complete with

heads, nuts and washers and bedded in concrete beams
132 No 2,500.0 330,000.0

Supply, fabricate, hoist, erect and fix the following 1No. mild steel
truss T1,2,11,34,35,23,25,13grinding all welds smooth and
priming with two coats of approved metal primer all to Structural
Engineer's details

40 x 40 x 2mm Rafters 144 Lm 14,000.0 2,016,000.0

40 x 40 x 2mm Tie Beam 125.4 Lm 14,000.0 1,755,600.0

40 x 40 x 2mm Struts and ties 118.2 Lm

14,000.0 1,654,800.0

180 x 180 x 8mm Thick mild steel base plate welded to steel
beams (measured separately) four times holed 10mm diameter
bolts
12 No 12,000.0 144,000.0
10mm Diameter grade 8.8 250mm long bolts complete with
heads, nuts and washers and bedded in concrete beams
48 No 2,500.0 120,000.0
Supply, fabricate, hoist, erect and fix the following 10No. mild
steel trusses T6,15,17,14,10,18,30,28,26,24 and grinding all
welds smooth and priming with two coats of approved metal
primer all to Structural Engineer's details

40 x 40 x 2mm Rafters 231 Lm 14,000.0 3,234,000.0

40 x 40 x 2mm Tie beams 204.05 Lm 14,000.0 2,856,700.0

40 x 40 x 2mm Struts and ties 233.2 Lm 14,000.0 3,264,800.0

180 x 180 x 8mm Thick mild steel base plate welded to steel
beams (measured separately) four times holed 10mm diameter
bolts 22 No 12,000.0 264,000.0

10mm Diameter grade 8.8 250mm long bolts complete with

heads, nuts and washers and bedded in concrete beams
88 No 2,500.0 220,000.0

Supply, fabricate, hoist, erect and fix the following 2No. mild steel
trusses T22,27,33,21,20,19,17,16,03 grinding all welds smooth
and priming with two coats of approved metal primer all to
Structural Engineer's details

40 x 40 x 2mm Rafters 264 Lm 14,000.0 3,696,000.0

40 x 40 x 2mm Tie beams 242 Lm 14,000.0 3,388,000.0

40 x 40 x 2mm Struts and ties 220 LM 14,000.0 3,080,000.0

180 x 180 x 6mm Thick mild steel base plate welded to steel
beams (measured separately) four times holed 10mm diameter
bolts 22 No 12,000.0 264,000.0

10mm Diameter grade 8.8 250mm long bolts complete with

heads, nuts and washers and bedded in concrete beams
88 No 2,500.0 220,000.0
Structural unframedsteel work

Generally

100 x 50 x 20 x 2mm Thick Z-purlins 1713.004 LM 30,000.0 51,390,120.0

12mm Diameter x 1200mm long mild steel sag rods complete

with nuts and washers 238 No 6,000.0 1,428,000.0

Sundries

Allow for gusset plates, cleats, bolts, drilling holes etc. 1330 Item 1,000,000.0

Roof sheeting and eaves soffits

28 Gauge pre-painted galvanised steel as described:-

IT4 Sheet roof coverings fixed to Z-purlins (measured separately)

at 1200mm centres general spacing with and including galvanised
steel hook bolts complete with nuts and felt washers 1,786 SM 40,000.0 71,440,000.0

Ridge/hip cappings 190 LM 30,000.0 5,700,000.0

Mild steel

600mm Girth x 2mm thick valley flashings 110 LM 48,750.0 5,362,500.0

Allow for connecting Iron sheets Self tapping screws 2579 No 750.0 1,934,250.0

Pvc

Fascia

250 x 3mm Thick 200 LM 35,000.0 7,000,000.0

Rain water disposal

Gutters

160mm Diameter half round UPVC rain water gutter secured to

timber fascia board with and including screwed metal brackets at
900mm centres 200 LM 25,000.0 5,000,000.0

Extra over 160mm UPVC gutter for angle connector 16 No 30,000.0 480,000.0

100mm uPVC balloon grating

16 No 30,000.0 480,000.0
Down pipes

100mm Diameter UPVC down pipe secured to block wall with

holderbats and jointed with approved compound.
160 LM 25,000.0 4,000,000.0

Extra over for swannecks 32 No 30,000.0 960,000.0

Extra over for bends 32 No 30,000.0 960,000.0

Extra over for shoes

32 No 30,000.0 960,000.0
Eaves soffits

Finishings

2No. 100 x 50mm softwood joists in one direction and 75 x 50mm

softwood bearers at 600mm centres in other direction; Cement :
sand 1:4 to ceiling mesh with provision of breathing holes.
108 SM 30,000.0 3,240,000.0

Total cost 209,993,850.0