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
  • Good spanning capability
  • Water-discharge capacity
  • Simple and fast application
  • Long length
  • High drainage density
  • Reduces roofing overflow
Category:

Specification Drawing

Specification Info

Profile I-Rib™750
Effective Width 762mm
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 3.4 Min G550 MPa
AZ 090 0.40mm *0.47mm 3.88 Min G550 MPa
AZ 100 0.42mm 0.47mm 4.14 Min G550 MPa
AZ 100 0.48mm 0.53mm 4.7 Min G550 MPa

*nTCT (Nominal Total Coated Thickness)

Recommended Maximum Roof Length (G550/M)

Rainfall Intensity (mm/hour) Slop in Degree 2° Slop in Degree 5° Slop in Degree 7° Slop in Degree 10° Slop in Degree 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 End Span (mm) Roof Internal Span (mm) Roof Cantilever (mm) Wall End Span (mm) Wall Internal Span (mm) Wall Cantilever (mm)
AZ 090 0.35mm 1200 1300 150 1600 2600 200
AZ 090 0.40mm 1400 1500 150 1600 2600 200
AZ 100 0.42mm 1500 1600 150 1650 2700 200
AZ 100 0.48mm 1900 2000 150 2300 2920 200
*Based on 75 kg/m2 design live load. *Based on 40 kg/m2 design wind load.