Dimondek^® 630

Dimondek ^® 630 Performance

Dimondek^®630 is a revolutionary concealed clip profile, which can be manufactured onsite in lengths up to 100m. Dimondek^® 630’s onsite manufacturing allows for gutter to gutter sheets in a continuous draped curve. The greater span capability means fewer purlins are required and it’s faster to install. With no screw holes through the roof, leaks are virtually eliminated meaning your roof lasts longer. With improved lifecycle costs Dimondek^® 630 is the most economical concealed clip roofing profile on the market.

Sheet Tolerances
Cover: ± 5mm - Sheet length: +10mm, -0mm (steel)

• Minimum Pitch: 3 degrees • Cover (mm): 630mm

 • Applications: Industrial / Commercial Roofing 

• Materials: Specified coating and material based on environmental conditions in accordance with E2/AS1. 

Available in metallic coated and pre-painted steel in 0.48mm, 0.55mm BMT (base material thickness) Matching translucent sheeting is available in G.R.P. (fibreglass) 

• Material Thickness: Steel 0.48mm and 0.55mm 

• Colours: Available in pre-painted ColorCote® ZinaCore™, MagnaFlow™ and COLORSTEEL® MAXAM™ 

Roll-forming facilities at: Mobile machine based in Hamilton, and can be moved to site when required.

Sheet lengths:Dimondek^® 630 is custom run to order.

Where long sheets are used consideration must be given to:

• Special transportation licences for sheet lengths over 25m
• Site access for special lifting equipment
• Fixing techniques to accommodate thermal expansion. Refer Section 2.1.3.4 of Technical Manual.
• Possibility of manufacturing sheets on site, sheets length up to 100m long are possible, when rolled on site.

DD630 Limit State Load / Span Capacity

(span in mm, distributed ultimate loads in kPa)

Notes

1. In Restricted Access Roof and Non-Access Roof & Wall applications, spans exceeding the maximum values shown should not be used. The maximum spans for Restricted Access Roofs are based on static point load testing as a guide and are further limited by practical experience of roof performance under dynamic foot traffic loads. For Non-Access Roof & Wall applications, the maximum spans are limited to ensure satisfactory appearance for wall cladding.
2. Loads given are based on clip fastening every rib at every purlin.
3. Loads given are limited to a maximum of 2.6 kPa. If design requirements exceed this limit, contact Dimond for specific advice.
4. Spans beyond 3.6m are not recommended.
5. For the purposes of serviceability design, the serviceability limit, limited by permanent rib deformation, occurs essentially at the same load as ultimate failure which is the point of disengagement of the roof with the clip.
6. End span capacities given in this table are based on the end span being 2/3 of the internal span.
7. Design Criteria for Limit State Capacities
   1. Serviceability Limit State
      No deflection or permanent distortion that would cause unacceptable appearance, side lap leakage or water ponding, due to foot traffic point loads, inward or outward wind loads or snow loads.
   2. Ultimate Limit State
      No pull through of fixings or fastener withdrawal resulting in sheet detachment due to wind up-lift (outward) loads.
8. System Design
   The span capacity of Dimondek^® 630 is determined from the Dimondek^®630 Limit State Load/Span Capacity Chart using the section of the chart appropriate to the grade and type of material, and to the category of serviceability selected from the three categories below. It is recommended that to obtain a dependable design strength capacity for the ultimate limit state, a reduction factor of Ø = 0.8 is applied.
   The capacities given do not apply for cyclonic wind conditions.
9. Serviceability Requirements
   While these categories are given for design guidance to meet the serviceability limit state criteria, foot traffic point load damage may still occur if there is careless placement of these point loads.
   
   Unrestricted-access roof
   Expect regular foot traffic to access the roof for maintenance work and able to walk anywhere on the roof. No congregation of foot traffic expected.
   Restricted-access roof
   Expect occasional foot traffic educated to walk only on the purlin lines, in the profile pans, or carefully across two profile ribs.
   Walkways installed where regular traffic is expected, and “Restricted Access” signs placed at access points.
   Non-access roof or wall
   Walls or roofs where no foot traffic access is possible or permitted. If necessary, “No Roof Access” signs used.
   
    
10. Wind Pressure Guide
    As a guide for non-specific design the following S.L.S. design loads in accordance with the MRM Roofing Code of Practice can be used for buildings less than 10m high, otherwise AS/NZS 1170.2 should be used
    Low wind zone = 0.68kPa, Medium wind zone = 0.93kPa, High wind zone = 1.32kPa, Very high wind zone = 1.72kPa and Extra high wind zone = 2.09kPa.

FASTENERS The durability of the fasteners should equal or exceed that of the material being fastened, and the fastener metal or coating must be compatible with the cladding material if in contact. Refer to NZS E2/AS1 table 20 for compatibility requirements. The minimum embedment of 30mm is the requirement for screws fixing into timber and minimum of three threads to pass through steel. When fastening through cavity battens, thermal break materials etc ensure the length of the screw is increased to accommodate the extra material.

The Dimondek® 630 perimeter clip must always be used over the first rib and clip on the first laid sheet.The Limit State Load / Span Capacity Chart is based on every rib being clip fastened to every purlin.

.DIMONDEK 630® WIND CLAMP

Dimondek 630® wind clamps are required to be installed over all ribs at all purlin locations where design wind loads are higher than those shown on the Dimondek 630® Load/Span chart. Call our Technical Team on 0800 766377 for advice