Everyone should understand the science of corrosion. Because wrong choices are difficult & expensive to replace or maintain. Or they are unsightly & make us look like ‘Jerry’ builders.
Durability of roofing materials depends upon exposure categories:
- Mild
- Moderate
- Industrial
- Marine (Pool)
So your fixings, sheet type & coatings will change.
WARNING
Do not specify or use steel products in beachfront or pool locations! And this means the purlins which I have seen corrode in under 5 years.
Our industry is in chaos about stainless fixing use for zincalume sheeting and steel products. Guys / Gals please get organised & give us durable, compatible products!