What is PPGI roofing sheets?
PPGI Sheet PPGI Sheets are sheets of pre-painted or pre-coated Steel that display high durability, and resistance against weather and UV rays from sunlight. As such, they are widely used as roofing sheets for buildings and construction.
What is TCT sheet?
The Total Coated Thickness (TCT) measures the steel substrate as well as the metallic coating, resin coating and/ or paint film. If a Tata BlueScope Steel AZ150 coated product is labeled as 0.42mm BMT means that it will have TCT of 0.47mm.
Is galvalume better than galvanized?
Galvanized steel is made completely of zinc, while galvalume includes aluminum, zinc, and a small amount of silicon. This provides superior durability and resistance to corrosion in comparison to galvanized coating.
What is BMT thickness?
Enter BMT, or Base Metal Thickness. Essentially, BMT measures the thickness of the metal itself before any protective layers and paint are applied in millimetres. So 0.50BMT tells us that the steel base of this particular sheet is 0.5mm thick without coatings, primers or paint.
What is BMT in construction?
Base metal thickness (BMT) Base metal thickness is the standard measurement used in the Australian steel construction market, according to BlueScope. It refers to the thickness of the structural metal, without considering any additional coatings, colours and so on.
What is the difference between galvanized and galvalume?
Which roofing material lasts the longest?
Roofing material that lasts the longest are concrete, clay or slate tiles. These materials significantly outperform other natural products like wood shakes or any manufactured roofing materials including asphalt shingles and metal roofing. Although these materials have a good lifespan, they are not as durable.
How many corrugated roof sheets do I need?
Divide the length of your roof area by 0.760 to determine the number of sheets you need. For example, a structure that’s 6.0m long is 6000 / 760 = 7.89 sheets.