Light steel frame houses for cold climates

A light steel plant in Weihai adopts single-slope roof + 100-year return period snow pressure (0.75kN/m²), with encrypted purlins (spacing 1.0m), successfully resisting 1.2m thick snow (equivalent load 1.2m) in 2024. snow (equivalent load 1.1kN/m²).

Low temperature resistant material parameters

The main steel is made of Q355D grade cold-formed thin-walled steel (thickness 0.42-2.56mm), yield strength ≥355MPa, tensile strength 470-630MPa, -20℃ low-temperature impact work ≥34J, and aluminum-zinc plating layer ≥150g/m², which ensures corrosion resistance and structural stability in low-temperature environment.

The exterior decorative layer adopts cement fiber board (thickness 12-18mm) or extruded polystyrene insulation board (XPS, thickness 50-100mm), taking into account the thermal insulation and freeze-thaw resistance.