A roofing material that can cover a large area, without too many gaps, is typically used by Philippine business owners. In fact, many businesses are using long span GI sheets in the Philippines to protect their buildings from the heavy rain and strong winds in the country. And because they come in custom lengths that fit the specific size of warehouses, these metal panels have become really popular.
What are Long Span GI Sheets?
A long span GI sheet is a single piece of steel that doesn't rust because it is coated with zinc. Unlike standard sheets, these panels can be as long as the entire slope of a roof to avoid horizontal joints. This design helps the roof stay solid for many years while keeping the interior of the building dry.
Why are Long Span Units Best for Warehouses?
Warehouse owners prefer these sheets because they have fewer overlaps where water can leak inside. It also takes a lot less time to build big projects when you use long span GI sheets. Because you can get a finished roof much faster when you use panels that cover more ground with one piece.
Why Does the Length Reduce Leak Risks?
Typically, standard metal sheets leak at the spots where the top and bottom pieces meet. But with long span designs, these middle joints are removed entirely so the rain flows straight into the gutters. This feature is the reason why they’re used for protecting expensive goods and equipment inside a large storage space.
Why is the Zinc Layer Necessary for Big Buildings?
The zinc coating acts like a shield that blocks moisture and air from touching the steel core. This barrier prevents the metal from rotting away even when it rains almost every day. It makes your warehouse roof stay strong for a very long time without needing a full replacement.
Why are These Sheets Lighter Than Other Options?
Metal roofing is much lighter than clay tiles or heavy stone materials. This light weight puts less stress on the steel frame of a large warehouse or factory building. It also makes the sheets easier for workers to carry and install without needing heavy cranes.
Why Do Long Span Sheets Help with Cooling?
Many of these metal panels come with a factory finish that reflects the heat from the hot sun. This cooling effect keeps the air inside a large warehouse more comfortable for workers and goods. It helps lower the amount of money spent on large fans or cooling systems for the building.
How Do You Prepare the Steel Frame?
You need to make sure the trusses and purlins are perfectly level before you put the metal down. Check that the spacing between the beams is correct so the long sheets do not bounce or sag. Remember that a solid frame is the most important part of making a roof that can handle a storm.
How Should You Fasten Long Metal Panels?
Workers should use high-quality screws that have a rubber washer to stop water from seeping through. Drive the screw through the top part of the wave to keep the hole away from the main water flow. Using the right tools helps the roof stay dry and prevents the metal from moving in the wind.
How Do You Use the Right Gauge for Big Roofs?
Most warehouses use a thickness of gauge 24 or gauge 22 for better strength against the wind. Thinner sheets might be cheaper, but they can dent easily if a person walks on them for repairs. Investing in a thicker gauge will save you money on repairs and maintenance later on.
How Do You Overlap the Sides of the Sheets?
You should place the edge of one sheet over the next one by at least two waves to keep the rain out. This side overlap prevents water from blowing under the metal during a heavy storm or typhoon. A tight seal on the sides is just as important as the length of the sheet itself.
How to Maintain a Large Warehouse Roof?
You should wash the metal surface every few months to remove dust and salt that can cause rust. Hire a professional once a year to check the screws and the sealant around the vents. Simple care prevents small issues from turning into big leaks that could damage your inventory.
Why is Proper Sloping Important for Long Sheets?
The roof needs to have a steep enough angle to let the rainwater move as fast as possible to the gutters. This prevents puddles from forming on the metal which can lead to leaks over time. A good slope also helps the wind move over the warehouse without lifting the long panels.
Key Takeaway
A large warehouse needs a strong roof with few spots for water to leak inside. And one way of preventing this is to use long span GI sheets in the Philippines. And by following these helpful tips, you’ll surely keep your metal roof strong and the interior of your storage dry for many years to come.