Home > Companies > Ayrshire Metals Ltd > Purlins and Cladding Rails

A comprehensive range of purlin and rail sizes, profile and construction options. Fewer components, accelerated build, fast & easily clad.

Zeta:

  • Fully effective section profile offering maximum efficiency. Ideal for purlin spans up to 7.6 metres. No anti-sag bars required for the majority of roofing applications.

Zeta II:

  • Modified Zed section with additional stiffening for optimum structural efficiency and minimum weight.
  • Ideal roof purlin and cladding rail option for spans over 7.5 metre and heavier loads.

Zed:

  • Traditional zed profile offering simple construction details. Fully compatible with Ayrshire's range of 'C' sections to frame around openings.
  • Can be used as a purlin over short spans and steep roof slopes.
  • Ideal as short span cladding rail.
  • Purlins and Cladding Rails.

Standard product features

General:

  • Zeta, Zeta II and Zed section: purlin and rail profiles made from Grade S390GD+Z275 -N-A-C zinc coated steel to BS EN 10326.
  • Cleats made from Grade DD11 steel to BS EN 10111:1998.
  • Base plates for bolt-on cleats made from Grade S275 material to BS EN 10025.
  • All other accessories made from Grade S280GD+Z275-N-A-C zinc coated steel to BS EN 10326.

Options

Type:

The product reference combines the purlin section type, either Zeta (1), Zeta II (2) or Zed (Z) and then requires values to be input based on the depth and thickness required i.e. 1/12513 refers to Zeta section, 125 mm deep and 1.3 mm thick.

The following depths and thickness are available:

- Depth:

  • Zeta: 1/125, 1/150, 1/175 and 1/200 mm.
  • Zeta II: 2/225, 2/245, 2/265 and 2/285 mm.
  • Zed: Z/125, Z/140, Z/155, Z/170, Z/185 and Z/200 mm.

- Thickness:

  • Zeta: 1.3, 1.4, 1.5, 1.7, 2.0.
  • Zeta II: 1.4, 1.5, 1.6, 1.8, 2.0, 2.5 and 3.0 mm.
  • Zed: 1.3, 1.4, 1.5, 1.7, 2.0 and 2.5 mm

General:

  • Purlins and rails roll formed to ordered length.
  • Holes positioned along length as required.

System Type: applies to all purlin profiles unless noted otherwise.

- Butted:

  • Single spanning sections without sleeves. Non continuous system, suitable where depth constraints exist and sections are fixed between supports.

- Double span: Zeta and Zeta II ONLY

  • Double spanning sections with only a minimum number of sleeves to alternate purlins across the penultimate support. Does not give quite the same strength capacity as the Sleeved system, but with fewer components is faster to erect. Alternative to sleeved system up to 7.5m span.

- Double span heavy end bay: Zeta ONLY

  • Similar to Heavy end bay system, but using double spanning interior purlin lengths and fewer sleeves. Does not give quite the same strength capacity as the Heavy End Bay system, but with fewer components is faster to erect. Alternative to the Heavy End Bay system up to 7.5m span.

- Heavy end bay:

  • Single spanning sections with sleeves at all supports providing a fully continuous system. End bay sections and sleeves increased in gauge to compensate for the lack of continuity at the gable. Increased capacity for longer spans and/or heavier loads. Suitable as a purlin system for longer buildings with 10 or more bays.

- Sleeved

  • Single spanning sections with sleeves at alternate supports. Sleeves act as 'mechanical hinges' to provide maximum structural efficiency for the number of components employed. Suitable for most building applications.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-60-50/400 Cold-formed galvanized steel sections

NBS Specification

NBS Buliding logo
This product is associated with the following NBS clauses:

Product specification

An important note about specifying

Manufacturer

Name:

Ayrshire Metals Ltd

Tel:

+44 (0)1327 300990

Product reference

[1/ XXXXX]
[2/ XXXXX]
[Z/ XXXXX]

Type

___ - See Type guidance under 'Options'.

Cleats

 - Bolt-on:
[1/B125]
[1/B150]
[1/B175]
[1/B200]
[2/B225]
[2/B245]
[2/B265]
[2/B285]
[Z/B125]
[Z/B140]
[Z/B155]
[Z/B170]
[Z/B185]
[Z/B200]
 
 - Weld-on:
[1/C125]
[1/C150]
[1/C175]
[1/C200]
[2/C225]
[2/C245]
[2/C265]
[2/C285]
[Z/C125]
[Z/C140]
[Z/C155]
[Z/C170]
[Z/C185]
[Z/C200]
 

Standard Sleeves (d x l)

[125 x 566 mm]
-
Zed.
[125 x 695 mm]
-
Zeta.
[140 x 566 mm]
-
Zed.
[150 x 825 mm]
-
Zeta.
[155 x 566 mm]
-
Zed.
[170 x 566 mm]
-
Zed.
[175 x 975 mm]
-
Zeta.
[185 x 706 mm]
-
Zed.
[200 x 1000 mm]
-
Zeta.
[200 x 706 mm]
-
Zed.
[225 x 850 mm]
-
Zeta II.
[245 x 900 mm]
-
Zeta II.
[265 x 950 mm]
-
Zeta II.
[285 x 1000 mm]
-
Zeta II.

Vertical Struts/Restraint Struts

[VS1 - 1/125]
-
Zeta.
[VS1 - 1/150]
-
Zeta.
[VS1 - 1/175]
-
Zeta.
[VS2 - 1/200]
-
Zeta.
[VS1 - 2/225]
-
Zeta II.
[VS1 - 2/245]
-
Zeta II.
[VS1 - 2/265]
-
Zeta II.
[VS1 - 2/285]
-
Zeta II.
[VS1 - Z/125]
-
Zed.
[VS1 - Z/140]
-
Zed.
[VS1 - Z/155]
-
Zed.
[VS1 - Z/170]
-
Zed.
[VS1 - Z/185]
-
Zed.
[VS1 - Z/200]
-
Zed.

Accessories

[Adjustable diagonal brace]
[Apex tie bar]
[Anti-sag bar]
[Column stay]
[FB fixing bracket]
[Gable cleader angle]
-
50 x 50 x 2 x 4.0 m long.
[Rafter stay]
[Verge trim angle]
-
100 x 100 x 2 x 7.0 m long.

Manufacturer details

Royal Oak Way,
Daventry,
Northamptonshire, NN11 8NR
Tel +44 (0)1327 300990
Fax +44 (0)1327 300885
NBS Plus
NBS National BIM Library
RIBA CPD