Dimond LT7 Roofing

Dimond LT7 Roofing and Cladding

Suitable for 3° and greater

889mm Cover width

933mm Sheet width

LT7 has a high rib

Suitable for light commercial

Suitable for commercial

8 ribs per sheet

LT7 is manufactured in Wellington.

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Dimond LT7 Profile

If you are looking for a bold, powerful roofing and cladding profile then LT7 should be your choice. Designed for applications where protection from severe climatic conditions and maximum structural economy is required, the strong section properties of LT7 allow for wider purlin and girt spacings which add extra economy to building projects. It also has excellent water shedding characteristics as well as being perfect for low pitch roofs.

Dimond LT7 Profile

Dimond LT7 Profile Dimensions

Cover

889mm

Sheet Width

933mm

Pitch

3° (approx 1:20)

Sheet Tolerances

Sheet width: ±5mm

Sheet width for aluminium +0, -15. If sheet cover widths are critical, advise Dimond at time of order.
Sheet length: +10mm, –0mm. For horizontal wall cladding where notified at time of order of intended use, tighter tolerances can be achieved +3mm, –0mm.

Profile Properties

Material Options Steel 0.40mm Steel 0.55mm Aluminium 0.7mm Aluminium 0.9mm Duraclad 1.7mm (total thickness)
Nominal weight / lineal metre (kg/m) 4.12 5.55 2.31 2.96 2.90
Drape curved roof - min. radius (m) 80 50 80 50 24
Purlin spacings for drape curved roof (mm) (1) 1400 2200 1400 2200 1200
Machine crimp curved - roof min. radius (mm) 900 400 n/a 400 n/a
Unsupported overhang (2) 250 350 200 300 200

(1) Recommended maximum purlin spacing at minimum radius

(2) Based on 1.1kN point load support, but not intended for roof access.
n/a – not available

Roll-forming facility

Wellington

Crimp-curving facility

Wellington

Manufacturing location for Duraclad

Auckland

Sheet lengths: LT7 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
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