Step 1

The first run of clips MUST be in position and fastened, one to each support, so that they will correctly engage in the female and centre ribs of the first sheet when the sheet is located and locked over the clips. It is important that the first sheet be in correct relation to other building elements as it provides the anchor for other sheets to align with it.

Step 2

Place the first sheet longitudinally in relation to gutter overhang and position it over the fastened run of clips, taking care to locate the centre rib first, and engage the centre and female ribs onto all clips by foot pressure.

Step 3

Fix the next run of clips, one to each support, with the short return leg of the clip over the male rib of the installed sheet. In the event that the clip fouls one the spurs spaces along the outer free edge of the male rib, simply flatten the spur with a blow from a rubber hammer mallet to allow the clip to seat down over the clip.

Step 4

Position the second sheet over the second run of clips, again locating the centre rib first. To ensure that the ends of the sheets are in line, stretch a string line across the bottom of the sheets and a correct alignment can be obtained. The interlocking ribs and the centre rib must be fully engaged over each clip.

This can be easily be done by walking along the full length of the over lapping sheet, i.e. just walk with one foot in the tray next to the over lapping female rib and the other foot applying pressure to the top of the interlocking ribs at regular interval. Also apply foot pressure to the top of the centre rib over each clip.

Complete interlocking is essential, i.e. the spurs of Duro-Klip along the underlapping male ribs must be fully engaged in the shoulder of the overlapping female rib.

As the interlocking ribs fully engaged, a distinct “click” will be heard.
 

When engaging Duro-Klip interlocking ribs, stand only on the sheet being installed, i.e. the overlapping sheet, and not on the preceding sheet.

Install subsequent sheets by following Steps 3 and Steps 4 and make periodic checks that the installed sheets are aligned with the roof perimeter.

On walling application, use a rubber mallet to fully engage the interlocking ribs and engage the centre rib over the clips.

Step 5

If the space left between the last full sheet and the fascia or parapet is more than a half a sheet, a sheet can be cut longitudinally, leaving the centre rib complete. This partial sheet can be fully clipped onto a row of clips as if for a full sheet, before installing the capping or flashing.
 

If the space left between the last full sheet and the fascia or parapet is less than a half sheet width, it can be covered by capping or flashing. In this case, the last sheet should be secured by cutting clips in halves and fastening the male rib at each purlin with a half clip.

FASTENING METHOD DURO CLIP

DURO Clip has been designed for DURO-KLIP System, it requires two fasteners per clip and provides an easy, positive engagement in the ribs of the deck.

The two fasteners are inserted only through the two punched holes. Four dimples are also provided in the clip but these are for auxiliary fasteners only, to be used in the event of a fastener breaking or a timber support splitting.

The clip has a short return leg and a long return leg. The clip must be positioned with the short leg engaging over the male rib of the underlapping sheet.