In the era of pursuing efficient construction and sustainable life, prefab steel garage is becoming the preferred solution for global home and commercial users with their industrialized production, fast installation and super durability. As a classic representative of steel structure buildings, steel garages not only subvert the traditional brick-concrete construction model, but also redefine the value of space with innovative material technology. This article will deeply analyze the core material system and construction logic of prefabricated steel garages to provide a scientific reference for your decision-making.
Material architecture of prefab steel garage: perfect balance of strength and function
1. Main frame: high-strength galvanized steel builds the core skeleton
The core load-bearing structure of prefabricated steel garages usually uses cold-bent thin-walled steel (C/Z steel) or hot-rolled H-shaped steel. The surface of the steel is hot-dip galvanized, the zinc layer thickness is ≥80μm, and the salt spray corrosion resistance life is over 30 years. This type of steel structure can withstand a Category 12 hurricane and a 1.5-meter snow load, and its strength is far greater than that of a wooden frame.
Wall panels and roof panels: 0.4-0.7mm aluminum-zinc color steel plates are mostly used, the substrate contains 55% aluminum-zinc alloy layer, with PE/PVDF coating, UV aging resistance reaches ASTM G154 standard, and adapts to temperature differences from -40℃ to 120℃.
Insulation layer (optional): EPS (expanded polystyrene) or rock wool sandwich design, thermal conductivity as low as 0.028W/m·K, energy-saving efficiency is 60% higher than traditional garages.
Waterproof technology: Hidden lock seam technology and butyl tape sealing ensure IPX7 waterproof at the joints to eliminate the risk of leakage.
3. Functional accessories: Details determine service life
Drainage system: 304 stainless steel gutters with PVC spiral downpipes, drainage volume up to 25L/s·m.
Door and window components: Broken bridge aluminum alloy frame + double-layer tempered glass, airtightness reaches ASTM E283 Class 50.
Foundation connection: galvanized anchor bolts are anchored to the concrete foundation, with a pull-out force of ≥15kN.
Advantages of prefab steel garage: Why choose steel structures?
1. Industrialized production, with an error of less than 2mm
All components are prefabricated in the factory through CNC cutting and laser welding, with a dimensional accuracy of ±1.5mm. On-site assembly only requires coding, shortening the construction period by 70% (traditional garages take 30 days, and steel garages are completed in 7 days).
2. Modular expansion, flexible adaptation to needs
Steel structure garages support “column-free” design, with a span of up to 18 meters, and can be later equipped with mezzanines, charging piles or smart security systems, reducing the cost of renovation by 40%.
3. Cost advantages throughout the life cycle
Construction cost: 25%-35% less than concrete garages.
Maintenance cost: no need to paint regularly to prevent moths, and the average annual maintenance cost is less than US$50.
Recycling value: The steel recycling rate exceeds 90%, and the residual value rate reaches 60% of the material cost.
From ordering to completion: How do prefab steel garage achieve “30-day delivery”?
Precise measurement and 3D modeling: BIM technology generates adaptation solutions.
Factory pre-installation test: 100% pre-assembly quality inspection of structural parts to ensure zero on-site rework.
Fast delivery: Components are packed in layers according to the installation order, which is easy to load and unload.
Mechanized construction: A team of 3 people cooperates with lifting equipment to complete an average of 50 square meters of construction per day.
Industry outlook: How do steel garages empower green buildings?
According to the data of the Steel Building Association (MBMA), steel structure buildings will account for 58% of the new garage market in 2023, and their low-carbon characteristics are significant:
Carbon emissions: 75kg CO₂ less per square meter than concrete.
Energy regeneration: The roof can be integrated with solar panels to meet the needs of garage lighting and electric vehicle charging.
Sustainable certification: Meet LEED v4.1 and BREEAM standards to increase the premium space of real estate.
Choose Canglong Group to customize your future garage
As a global leader in steel structure building, Canglong Group provides one-stop prefab steel garage solutions from design, production to installation. Our galvanized steel components are AISC certified, with a 15-year warranty commitment, and have served customers in 80+ countries around the world. Get a free plan now and experience the ultra-fast construction of “1 hour quotation – 30 days delivery”!
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