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Brownbuilt 900

Standard Colours

For Designer, Metallic and Gloss colours, download the ColorCote® special colours brochure.

Black
Black
Minimum pitch
Rib type
High
Ribs per sheet
7
Width
900mm cover
960mm sheet
Suitable for
Residential
Light commercial
Commercial
Manufactured in
Auckland
Products may not be available outside of its manufacturing location, and freight and packing charges applied may vary depending on the location of manufacture and delivery point. To confirm availability and costs please contact Dimond prior to ordering.
Overview

BB900 has been designed with strong ribs that restrict buckling under concentrated loads reducing the chance of damage on roofs where foot traffic is common. Equally useful as wall cladding, BB900 aesthetic appeal can even further enhanced by inverting the profile to create Reverse run BB900 use in Dimond Advanced Roofing Systems. 
 

For full details click here; 

V1 PRODUCT TECHNICAL STATEMENT DIMOND BB900

 

 

 

Cover (mm)
Sheet Width (mm)
Minimum Pitch
Cover (mm)
900
Sheet Width (mm)
960
Minimum Pitch
3º (approx. 1:20)

All dimensions given are nominal

SHEET TOLERENCES Cover: ± 5mm - Sheet length: +10mm, -0mm (steel) Cover: +10mm, -15mm - Sheet length: +0mm, -15mm (aluminium) 

 
Material options
Steel 0.40mm
Steel 0.55mm
Steel 0.75mm
Aluminium 0.9mm
Stainless Steel
Duraclad 1.7mm (total thickness)
Nominal weight / lineal metre (kg/m) options
Steel 0.40mm
4.12
Steel 0.55mm
5.55
Steel 0.75mm
7.47
Aluminium 0.9mm
2.96
Stainless Steel
5.36
Duraclad 1.7mm (total thickness)
2.90
Drape curved roof - min. radius (m)
Steel 0.40mm
n/r
Steel 0.55mm
90
Steel 0.75mm
90
Aluminium 0.9mm
90
Stainless Steel
n/r
Duraclad 1.7mm (total thickness)
24
Purlin spacings for drape curved roof (mm) (1)
Steel 0.40mm
n/r
Steel 0.55mm
2.4
Steel 0.75mm
2.4
Aluminium 0.9mm
2.4
Stainless Steel
n/r
Duraclad 1.7mm (total thickness)
1.2
Machine crimp curved - roof min. radius (mm)
Steel 0.40mm
n/a
Steel 0.55mm
n/a
Steel 0.75mm
n/a
Aluminium 0.9mm
n/a
Stainless Steel
n/a
Duraclad 1.7mm (total thickness)
n/a
Unsupported overhang (2)
Steel 0.40mm
250
Steel 0.55mm
350
Steel 0.75mm
450
Aluminium 0.9mm
300
Stainless Steel
350
Duraclad 1.7mm (total thickness)
200

(1) Recommended maximum purlin spacing at minimum radius

(2) Based on 1.1kN point load support, but not intended for roof access.

n/r – not recommended

n/a – not available

Load Span Table
G550 Steel 0.4mm
Unrestricted Access / Roof
Restricted Access / Roof
Non-Access / Roof or Wall
Unrestricted Access / Roof
End Span
Internal Span
Serviceability
End Span
800
Internal Span
1200
Serviceability
4.0
Restricted Access / Roof
End Span
1100
1300
1500
Internal Span
1600
1900
2200
Serviceability
3.3
2.6
2.0
Non-Access / Roof or Wall
End Span
1500
1700
1900
Internal Span
2300
2600
2900
Serviceability
1.8
1.6
1.2
G550 Steel 0.55mm
Unrestricted Access / Roof
Restricted Access / Roof
Non-Access / Roof or Wall
Unrestricted Access / Roof
End Span
Internal Span
Serviceability
End Span
1600
Internal Span
2400
Serviceability
3.7
Restricted Access / Roof
End Span
1700
2000
2300
Internal Span
2500
3000
3400
Serviceability
3.5
2.7
2.0
Non-Access / Roof or Wall
End Span
2400
2500
2700
Internal Span
3500
3800
4100
Serviceability
1.9
1.7
1.5
G550 Steel 0.75mm
Unrestricted Access / Roof
Restricted Access / Roof
Non-Access / Roof or Wall
Unrestricted Access / Roof
End Span
Internal Span
Serviceability
End Span
2000
Internal Span
3000
Serviceability
4.0
Restricted Access / Roof
End Span
2100
2400
2700
Internal Span
3200
3600
4000
Serviceability
3.8
3.1
2.3
Non-Access / Roof or Wall
End Span
2800
3000
Internal Span
4200
4600
Serviceability
2.0
1.3
5052 H36 Aluminium 0.90mm
Unrestricted Access / Roof
Restricted Access / Roof
Non-Access / Roof or Wall
Unrestricted Access / Roof
End Span
Internal Span
Serviceability
End Span
1300
Internal Span
2000
Serviceability
3.8
Restricted Access / Roof
End Span
1400
1600
1900
Internal Span
2100
2400
2800
Serviceability
3.6
2.8
2.1
Non-Access / Roof or Wall
End Span
1900
2200
2800
Internal Span
2900
3300
3700
Serviceability
2.0
1.5
1.2
Duraclad 1.7mm (Note 4)
Unrestricted Access / Roof
Restricted Access / Roof
Non-Access / Roof or Wall
Unrestricted Access / Roof
End Span
Internal Span
Serviceability
Ultimate
End Span
Internal Span
Serviceability
Ultimate
N/R
N/R
Restricted Access / Roof
End Span
600
800
Internal Span
900
1200
Serviceability
-
-
Ultimate
4.5
4.5
Non-Access / Roof or Wall
End Span
900
110
1400
Internal Span
1300
1700
2100
Serviceability
-
-
-
Ultimate
4.5
3.2
2.0
Fastener Design

BB900 Fastener Design

Brownbuilt 900 should be screw fixed to either timber or steel purlins. The use of the appropriate length of 12g or 14g screw will ensure failure by screw pull out will not occur under loads within the scope of the Limit State Load / Span Capacity Chart.

 

 

 

 

 

Purlin Type
Roofing Rib Screw Length* (mm)
Roofing Rib Designation
Wall Cladding Pan Screw Length* (mm)
Wall Cladding Pan Designation
Timber
Roofing Rib Screw Length* (mm)
75
Roofing Rib Designation
T17 - 14 - 10 x 75
Wall Cladding Pan Screw Length* (mm)
50
Wall Cladding Pan Designation
RoofzipM6 x 50 HG-Z4
Steel
Roofing Rib Screw Length* (mm)
65
Roofing Rib Designation
Tek - 14 - 10 x 65
Tek - 12 - 14 x 68
Wall Cladding Pan Screw Length* (mm)
20
Wall Cladding Pan Designation
Tek - 12 - 14 x 20

*If sarking or insulation is used over the purlins or for wall cladding fixing onto a cavity batten, into the stud, the screw length will need to be increased.

3 fasteners/sheet
6 fastener/sheet
End Span
3 fasteners/sheet
2300mm
6 fastener/sheet
2300mm
Internal Span
3 fasteners/sheet
3400mm
6 fastener/sheet
3400mm
Serviceability
3 fasteners/sheet
2.0 kPa
6 fastener/sheet
1.0kPa

Fastener Layout Options



 

bb900 roofing 6 fastener sheet layout
bb900 roofing 3 fastener sheet layout