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Lysaght Klip-Lok® 406 Warranty LYSAGHT roofing has a material warranty of up to 25 years for corrosion to perforation and a performance warranty ofup to 25 years provided its fixed to specification. Warnings Minimum recommended roof pitch is 1 degree for 0.48 and 0.60 mm bmt, 2 degress for 0.42 bmt Ensure selection of suitable material for environmental conditions for maxiumum durability Lead and copper are not compatible with ZINCALUME® steel or COLORBOND® steel Installation Fastening Sheets to Supports KLIP-LOK® 406 may be crest fixed to timber or steel roofing or walling supports, or valley fixed to steel supports or timber walling supports. Do not locate fasteners less than 25mm from ends of sheet. Fastening Method The KL65 clip is used for fastening KLIP-LOK® 406. It requires only two fasteners per clip and provides an easy engagement in the ribs of the deck. The two fasteners are inserted through the two punched holes. Four dimples are also provided in the clip 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. It is positioned with the short leg engaging over the underlapping rib of the underlapping sheet. LYSAGHT KLIP-LOK® 406 Concealed Fastening Fixing to steel up to 1 mm thick Type 17 screws with wafer-head 10-12x25 Fixing to steel 1 to 3 mm thick Metal Teks screws with wafer-head 10-16x16 (10-16x22 over insulation) Fixing to timber Type 17 screws with wafer-head Softwood: 10-12x35 Hardwood: 10-12x25 (10-12x45 over insulation) or Spiral-threaded steel nails Softwood: 3.75 dia. x 60 Hardwood: 3.75 dia. x 40 (3.75 dia x66 over insulation) General Installation Notes Check that the top faces of all purlins or battens are lying in one plane, adjusting as necessary by packing or easing between these members and their supporting structure. Under no circumstances should packing be used directly under the fastening clips to adjust fall or alignment of roof. Accurate alignment ensures efficient locking of sheets and clips. Conversely, misalignment can interfere with the locking action, particularly on close support centres. To maintain maximum holding power the first and last supports and clips should be at least 75 mm from each end of the sheet. Make spot checks for the alignment of sheets during laying to control fanning or creep (5 sheets = 2030 mm coverage). To rectify alignment, sheets may be adjusted + or - 2 mm by pulling the clip away or pushing towards the sheet while fastening the clip. For very steep roof or vertical wall applications, a positive fastener (screw or bolt) is required in each sheet length to prevent movement down the fastening clips. This is best positioned under or through the flashing or capping at the top end. KLIP-LOK® 406 can be fastened over insulation wool blankets up to 50 mm thick when the blanket is draped over supports before installation of clips. Installation Procedure Step 1 When lifting sheet lengths onto the roof frame ready for installation, make sure all sheets have the overlapping ribs facing towards the side where fastening is to commence. The first run of clips must be located and fastened, one to each support, so that they will correctly engage in the overlapping and centre ribs of the first sheet when it is located and locked over them. To do this, fasten clips to the purlins at each end of the sheet, having positioned them so that the first sheet will be in correct relation to other building elements. Align and fasten the remainder of the first run of clips using a string line or the first sheet as a straight edge. Step 2 Position the first sheet longitudinally in relation to gutter overhang and locate it over the fastened run of clips, positioning the centre rib first, and engage the centre and overlapping ribs onto all clips by foot pressure. Step 3 Position and fasten the next run of clips, one to each support, with the short return leg of the clip over the underlapping rib of the installed sheet. If the clip fouls one of the spurs spaced along the outer free edge of the underlapping rib, the spur can be flattened with a blow from a rubber mallet to allow the clip to seat down over the rib. Step 4 Place the second sheet over the second run of clips, again positioning the centre rib first. A string line stretched across the bottom alignment of the sheets can be used to check that the ends of the sheets are in line. Fully engage the interlocking ribs and the centre rib over each clip. This can be achieved by walking along the full length of the sheet being installed with one foot in the tray next to the overlapping rib and the other foot applying pressure to the top of the interlocking ribs at regular intervals. Also apply foot pressure to the top of the centre rib over each clip. For complete interlocking, which is essential, the spurs of KLIP-LOK® 406 along the underlapping rib must be fully engaged in the shoulder of the overlapping rib. See illustration 'Step 4b'. A distinct "click" will be heard as the interlocking ribs fully engage. When engaging KLIP-LOK® 406 interlocking ribs, stand only on the sheet being installed, that is the overlapping sheet, and not on the preceding sheet. Install subsequent sheets by following Steps 3 and 4 and make periodic checks that the installed sheets are aligned with the roof perimeter. On walling applications a rubber mallet must be used to fully engage the interlocking ribs and engage the centre ribs over the clips. Step 5 If the space left between the last full sheet and the fascia or parapet is more than a half sheet width, a sheet can be cut longitudinally, leaving the centre rib complete. This partial sheet can be fully clipped onto a row of clips as 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 the capping or flashing. In this case,the last sheet should be secured by cutting clips in halves and fastening the underlapping rib at each purlin with a half clip. Turn-Up Tool A turn-up tool is available to turn up the sheet trays under the flashing or capping at the high end of the roof. This stop ending is required on all roofs of low pitch (below 25°) and ensures that any moisture driven beneath the flashing will not drain into the building. Turn-down Tool A turn-down tool is available to turn down the sheet trays at the low or gutter end of the roof. This turn-down or drip edge prevents water from running back along the underside of the sheets. Notching Tool A notching tool is available for on-site notching of transverse cappings and flashings. Cutting Sheets on Site A power saw with metal cutting blade is the best method for cutting KLIP-LOK® 406 sheets on site. Metal blades are preferred to carborundum discs as they produce fewer damaging hot metal particles and leave less burr on the cut sheet. When cutting roof sheeting take care to protect sheeting from debris. Whenever possible, cutting should be done on the ground and not over other coated material. Sheets should be placed face down on padded supports. Cutting should not be carried out on top of other painted surfaces. Cleaning up All debris should be swept from the roof area and gutters, at the end of the day and at the completion of the installation. Failure to do so can lead to surface staining.