Corrugated Iron Roofing 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.
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 roofing at the manufacturers unless you want to are ready to start installing it. Have delivery the day before roofing starts. If the roofing iron arrives before you are able to make it better, you must make sure it is kept bone dry. sửa chữa mái tôn It is a common mistake to assume that because they are roofing sheets, they can withstand moisture. If the roofing 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 bed sheet. Use bearers to allow airflow around the metal. This will prevent corrosion.
Gently does it
As for handling, care needs to be taken in order not to damage the paintwork. Sliding sheets across one another will damage them. When splitting the roofing sheets, you should lift them cleanly way up 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 air leaks. Choose good quality roofing screws. These will provide a more secure fixing and last as long as the roofing iron. It’s important not to over tighten the screws. Just tight enough to lightly weaken the neoprene dish washer is sufficient.
If you pre-drill the holes for your roofing screws and incapacitated, it will be safer and give the roofing a neater appearance. This is only possible if the purlins run parallel to the eaves and the roof is reasonably rectangle.
Using a quality drill bit makes the job easier. The drill bit should be slightly larger than the diameter of the roofing screws. This will prevent stress cracks as the sheets expand and contract.
Take accurate measurements of the purlin zones from the eaves and mark the roofing sheets ready for drilling the prop holes. Don’t neglect to add the drop into the gutter to your measurements, usually about 50mm. It’s far better use chalk for marking corrugated roofing iron because pen may damage the surface.
Cut to the quick
Cutting corrugated iron roofing sheets with a blank disc cutter makes the job easier and faster. Unfortunately, it also damages the roofing iron beyond repair. Hot particles 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 bed sheet with hand shears or best of all power shears. A better finish can be achieved 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.
If you locate scratches on your roofing 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 times weathering the patched paintwork will jump out like a sore thumb. Contact the manufacturer and ask for advice on making repairs to their product.
Laying the roofing
Before you start laying the roofing sheets check that the roof is rectangle. If the roof is not rectangle 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 string line along the eaves, 50mm into the gutter and it can provide a straight edge for the roofing sheets.
On finalization it’s important to clear the roof of any loose swarf. Tiny particles 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. Through a little extra care with the preparation and fixing, you will achieve a superior finish.