iRib 750

I-Rib™750

Value-added practicality

  • Recommended for industrial and commercial use, such as shop offices, schools, multi-purpose halls and apartments.
  • Wider effective cover width of 750mm and rib height of 30mm
  • For minimum roof pitch of 2°
  • Recommended for long length high tensile metal decking

Benefits

  • Ensure good spanning capability and excellent water-discharge capacity
  • Simple and fast application
  • Long length
  • High drainage density
  • Reduces roofing overflow

Specification Drawing

irib 750 - Specification drawing

Specification & Technical Info

Profile I-Rib™750
Effective Width 750mm
Depth of Rib 30mm
Steel Standard AS 2728 (Color) - Equivalent to Malaysia Standard MS 2383
AS 1397 (Bare) - Equivalent to Malaysia Standard MS 1196
Yield Strength (MPa) G550
Minimum Roof Pitch 2° Sheet without end lap
Tolerance Length ±5mm, Width ±3mm, Thickness ±0.03mm
Thickness Available
Coating Mass Base Metal Thickness (BMT) Total Coated Thickness (TCT) Weight (Kg/m2) Min Yield Strength (MPa)
AZ 090 0.35mm 0.40mm 3.46 Min G550 MPa
AZ 090 0.40mm *0.47mm 3.94 Min G550 MPa
AZ 100 0.42mm 0.47mm 4.20 Min G550 MPa
AZ 100 0.48mm 0.53mm 4.78 Min G550 MPa
*nTCT (Nominal Total Coated Thickness)
Recommended Maximum Roof Length (M)
Rainfall
Intensity
(mm/hour)
Slope in Degree
10° 12°
250 62 80 94 113 124
300 51 66 79 94 103
400 44 57 67 81 88
500 38 50 59 70 77
Recommended Maximum Spacing of Supports
Coating
Mass
Base Metal
Thickness
(BMT)
Roof Wall
End Span
(mm)
Internal Span
(mm)
Cantilever
(mm)
End Span
(mm)
Internal Span
(mm)
Cantilever
(mm)
AZ 090 0.35 1200 1300 150 1600 2600 200
AZ 090 0.40 1400 1500 150 1600 2600 200
AZ 100 0.42 1500 1600 150 1650 2700 200
AZ 100 0.48 1900 2000 150 2300 2920 200
*Based on 75 kg/m2 design live load. *Based on 40 kg/m2 design wind load.

Colour Options

Retail Segment

Bluescope Zac
Bluescope Zac

Total Coated Thickness
(mm) (TCT):

0.25, 0.28, 0.30, 0.33, 0.35,
0.40 & 0.45
Bluescope Zac
Bluescope Zac

Total Coated Thickness
(mm) (TCT):

0.35

Project Segment

Bluescope ColorBond

Warranty up to:

25 Years (perforation by corrosion) 15 Years (peel and flake) 10 Years (excessive colour fading) 5 Years (dirt staining)

Total Coated Thickness
(mm) (TCT):

0.42, 0.48 & 0.53
Bluescope Prima R

Warranty up to:

15 Years (perforation by corrosion) 10 Years (peel and flake) 5 Years (excessive colour fading)

Total Coated Thickness
(mm) (TCT):

0.40, 0.47 & 0.53

Non Colour

Bluescope Zac
Bluescope Zac

Total Coated Thickness
(mm) (TCT):

0.25, 0.30 & 0.35
Bluescope Zincalume

Warranty up to:

25 Years

Total Coated Thickness
(mm) (TCT):

0.40, 0.47 & 0.53

How to choose the right roof





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