Roof A guide To Installing Corrugated Iron Roof

Corrugated Iron Roof is durable, lightweight, and easy to install. If a few extra precautions are taken with handling and fixing, the finished product will greatly be improved.

White Rust
Over half of the mistakes made while constructing a corrugated iron roof can be traced back to incorrect storage or handling. The iron has to be handled and stored correctly because the surface is very easily damaged.

Leave the metal roof at the manufacturers until you are ready to start installing it. Prefer delivery the day before roof starts. If the roof iron arrives before you are able to make it better, you must make sure it is kept bone dry. It is a common mistake to assume that because they are roof sheets, they can withstand moisture. If the roof sheets are stacked together and they get wet, they will stain. White rust forms on the coating and it is very difficult to remove. If your roof sheets do get wet, separate each individual metal sheet. Use bearers to allow airflow around the metal. This will stop the rust.

Gently does it
As for handling, care needs to be taken in order not to damage the paintwork. Goosing sheets across one another will damage them. When splitting up the roof sheets, you should lift them cleanly max without scratch the one underneath.

Spend more money
Installing a roof can be time consuming and costly. The last thing you need is to have to keep investing in maintenance. If you scrimp on the cost of fasteners you will forever be replacing loose nails and fixing leaks. Choose good quality roof screws. These will provide a more secure fixing and last as long as the roof iron. It’s important not to over firm up the screws. Just tight enough to lightly compress the neoprene washer is sufficient.

If you pre-drill the holes for your roof screws in a tree, it will be safer and give the roof a neater appearance. This is only possible if the purlins run parallel to the eaves and the roof is reasonably square.

Using a quality drill-down a bit makes the job easier. mái bạt The drill-down bit should be slightly larger than the diameter of the roof screws. This will prevent stress cracks as the sheets expand and contract.

Take accurate measurements of the purlin centres from the eaves and mark the roof sheets ready for drilling the prop holes. Positive add the drop into the gutter to your measurements, usually about 50mm. It’s better to use chalk for marking corrugated roof iron because pen may damage the surface.

Cut to the quick
Cutting corrugated iron roof sheets with a disc cutter machine makes the job easier and faster. Unfortunately, it also damages the roof iron beyond repair. Hot fibers of steel imbed themselves into the surrounding metal allowing it to corrode. Nibblers will do the job adequately as long as you are careful with the swarf. It’s considerably better cut the metal sheet with hand shears or best of all power shears. A better finish may be accomplished if you make two cuts. The first cut 50mm away from your finished edge allowing you to neatly trim to the line with your second cut.

Locate scratches on your roof during installation resist the urge to paint it. The paint may well look like a good match from the container, but after a couple of years weathering the patched paintwork will stick out like a sore thumb. Contact the manufacturer and inquire for advice on making repairs to their product.

Laying the roof
Before you start laying the roof sheets make sure all of the roof is square. If the roof is not square you can still achieve a good finish if you balance out the difference, between the two barges. The difference will be less noticeable as it will be covered by the barge boasting. Run a thread line along the eaves, 50mm into the gutter and it can provide a straight edge for the roof sheets.

Clean up
On completion it’s important to clear the roof of any loose swarf. Tiny fibers of iron left on the top will rust and ruin the surface. A soft brush will do the job or ideally a leaf motorized inflator can be used.

A well installed corrugated iron roof will give years of maintenance free service. If you take a little extra care with the preparation and fixing, you will achieve a superior finish.

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