How To Fix Corrugated Metal Roofing Sheets

The washer under the screw head should seal to the surface of the panel without bulging or shifting.

How to fix corrugated metal roofing sheets.

Urethane roof cement is an excellent product that can help you patch holes on corrugated metal roofing. Pierce fixing uses fasteners to attach the sheet to the roof frame. Screws can be fixed through the pan valley or crest for walling applications. Secure adjoining sheets as well.

Press one patch over the roofing cement. The bottom end of the sheets you can fix in each trough to help prevent wind uplift of the sheets. Drive them on the ridge of the corrugated roof instead on the lower curve to make them even more watertight. Sweep the metal roofing sheets of all dirt and debris with a push broom.

As with all of the fixing screws provided you can use a colour cap to hide the stainless steel head. Use only specialty nails or screws suited for corrugated roof as they should be more water tight and weather proof. You will need around 20 nails or screws for one sheet. Secure the screws but do not overtighten.

For corrugated sheets the fixings required will depend on the material used in the purlins. Metal roofing resists rot is not susceptible to insect damage and is non combustible a boon in fire prone areas. Screws should be fixed perpendicular to the sheeting or cladding in the middle of the rib and always at the top of the crest for maximum water tightness. The general advice for fixing is 4 5 screws across the sheets purlin we advise using 1 screw on the overlap of the next sheet.

Corrugated roofing sheets should be installed into the corrugated sheets crown using a 65mm tek screw with baz washer. Obtain some roofing mesh and cut out 2 identical square patches. Fix roofing sheets nail or drill each sheet into the purlins or decking beneath at every point at which the sheet overlaps and at the top and bottom of the slopes. Stagger the sheets using a half sheet to start the second row.

Primary fixings should be in profile valleys where possible. Install the roofing screws vertically along each rib in the panel. Place the first screw about 7 inches from the bottom and each subsequent screw about 18 to 24 inches apart along the vertical run. One downside is that the metal sheets have a susceptibility to denting both in installation and during hailstorms.

2 lay 6 inch wide butyl tape over all horizontally lapping end seams. Apply the cement carefully with a putty knife until you ve sealed the hole completely. To fix the sheets each tileform sheet has 5 troughs for securing we recommend you fix the sheet into trough 1 3 and 5.