How much should corrugated sheets overlap?

An overlap of 150mm is often recommended for roofs with 10° pitches, whilst 300mm is recommended for 5° pitches. Always allow for an overhang of at least 60-70mm so that water can run off without coming into contact with rafters or purlins, which can lead to damp and structural weakness.

What is the maximum end span for corrugated iron?

The maximum length before an expansion joint is needed is 24 metres for light colours, and 16 metres for dark colours. For spring curved sheeting this distance is 20 metres for light colours and 16 metres for dark colours. CGI Corrugated roofing may be spring curved using purlins at a maximum spacing of 800mm for .

How do you install a corrugated panel system?

• Form with flat-lock seam at panel edges and smooth, flat pan. Field install in sequential order. Engage lower edge of each panel to upper edge of panel below and engage right side of preceding panel’s left side. Mechanically attach panels to supports by locating concealed clips under upper and left edges of panels. TABLE OF CONTENTS

Which is the best way to install corrugated roofing?

Complete the opposite side. If your roof is two-sided (and not just a single slope), repeat the installation on the other side of the roof, and install a corrugated ridge cap as you proceed across with the panels. Choose the type of corrugated roofing you want to use: PVC/fiberglass, or metal.

Where can I find an accord steel cladding guide?

More specific guidance can be obtained by contacting our technical team on 01384 273811 Using the information in our guides are at your own risk. Accord Steel Cladding Ltd accept no liability for any loss or injury caused by following the information in our guides.

Which is best practice for metal cladding installation?

Over a period of 2 years, agreement was reached on a range of topics covering many aspects of specification and installation, culminating in the drafting of good practice guidance aimed at designers and installers of metal cladding systems and secondary steelwork. This publication is the end-product of that process.