What are the material options for foldable tiny house?

The material selection for foldable tiny house should take into account lightweight, durability, and functionality. The following are common solutions:
1. Metal frame material
Hot dip galvanized steel: high bearing capacity (roof load can reach 8 tons), resistance to earthquakes of magnitude 8, strong corrosion resistance, and a service life of over 15 years.
Aluminum alloy: 1/3 lighter than steel structure, suitable for manual sliding design, such as folding and moving the main frame of a sunroom.
2. Wall panels and enclosure materials
A-grade fire-resistant rock wool color steel composite board: 50mm thickness, with both fire-resistant, waterproof, and thermal insulation properties, and excellent sealing performance.
Magnesium oxide board: waterproof, anti mold, anti termite, can be customized for exterior walls, suitable for fast folding houses.
PC board: Only half the weight of glass, with good transparency, suitable for sunroom ceilings.
3. Connection and auxiliary materials
Modular hinges/buckles: achieve fast folding (such as reducing the volume to 1/5 after folding) and reuse (up to 500 times).
Concave convex bite design: enhances the sealing of the box, windproof and rainproof.
4. Environmental protection and cost considerations
Recyclable materials, such as steel and aluminum, reduce resource consumption.
Comprehensive cost: Folding design can reduce transportation costs by 80%, but it is necessary to avoid low-priced and low-quality products.