When planning to build a cold storage facility, it is essential to first understand the different types available; selecting the right type ensures greater efficiency and better results. Cold storage facilities are classified below based on temperature range, purpose, stored products, usage scenarios, and structural design to help you identify the best fit for your needs.
Rapid cooling, preserves cell integrity, superior quality retention
II. Detailed Classification by Function/Use
1. Fruit and Vegetable Preservation Cold Storage
Designed for fruits and vegetables; controls temperature and humidity to prevent moisture loss and spoilage, thereby extending shelf life.
2. Meat Freezing Storage
Used by slaughterhouses, meat processing plants, and wholesale markets to store frozen pork, beef, mutton, chicken, and duck.
3. Seafood Cold Storage
Categorized into fresh-keeping, refrigerated, and quick-freezing zones; suitable for fish, shrimp, crabs, and shellfish to prevent spoilage and dehydration.
4. Pharmaceutical Cold Storage (GSP-Compliant)
Strictly compliant with regulations; categorized into cool storage, refrigerated storage, and reagent storage:
• Cool storage: ≤20°C
• Pharmaceutical refrigeration: 2–8°C
• Reagent/plasma storage: Below -20°C
Used for vaccines, reagents, biological agents, and prepared Traditional Chinese Medicine (TCM) herbs.
5. Quick-Freezing Storage
Rapidly freezes food products through to the core to lock in moisture and nutrients; commonly found in food processing plants.
Regulates oxygen and carbon dioxide levels to extend storage life by 2–3 times compared to standard preservation storage; commonly used for premium and imported fresh fruits.
Used by convenience stores, restaurants, and fresh food shops; compact size with stable temperature control.
III. Classification by Structural Form
1. Modular (Prefabricated) Cold Storage: Assembled from insulation panels; quick to install and easy to disassemble/relocate; the preferred choice for small to medium-sized facilities.
2. Civil Construction Cold Storage: Features reinforced concrete walls with internal insulation layers; designed for large-scale, long-term, fixed use.
3. Sandwich Panel Portable Cold Storage: Relocatable units suitable for temporary storage needs.
IV. Classification by Size
1. Micro cold storage: Under 10 m³; for small shops and household use.
2. Small-scale cold storage: 10–100 m³; for fresh food shops and restaurants.
3. Medium-scale cold storage: 100–1,000 m³; for wholesale markets and processing plants.
4. Large-scale cold storage: Over 1,000 m³; for cold chain parks and logistics centers.
V. Classification by Specialized Function
1. Buffer room: Connects the exterior to the cold storage area; minimizes cold air loss when doors are opened and prevents frost formation.
2. Pre-cooling room: Lowers product temperature before storage; protects the cold storage facility and extends product shelf life.
3. Thawing room: Allows for slow, temperature-controlled thawing; commonly used in meat processing.
4. Dehumidifying cold storage: Features humidity control to prevent frost and mold on goods.
Please select the cold storage facility that best meets your needs to avoid unnecessary costs or complications.
For more information needed or any inquiry,please feel free to contact Yumisteel team.
Overlapping wall connection structure one (exposed fasteners)
Overlapping wall connection structure two (concealed fasteners)
180° interlocking roof panel connection structure one (180° interlocking)
180° interlocking roof panel connection structure two (360° interlocking)
Interlocking roof panel connection structure
III. Applicable Conditions
(1) For roofing profiled steel sheets, interlocking or snap-fit sheets with concealed fasteners are preferred. When using overlapping sheets with exposed fasteners, the edge shape of the overlapping sheet should form a waterproof cavity structure.
(2) Vertical wall panels should use overlapping sheets with exposed fasteners; horizontal wall panels should use overlapping sheets with concealed fasteners.
IV. Types of Color Steel Sheet Substrates
(1) The nominal thickness of the profiled steel sheet substrate for walls should not be less than 0.5mm, the nominal thickness of the profiled steel sheet substrate for roofs should not be less than 0.6mm, and the nominal thickness of the profiled steel sheet substrate for floors should not be less than 0.8mm.
(2) Color-coated steel sheets for construction typically use hot-dip galvanized substrates and hot-dip aluminum-zinc alloy substrates, both of which have good corrosion resistance.
When installing solar panels on metal roofs, it's crucial to understand the common roof sheet profiles: angle type, standing seam and trapezoidal. Among them, the trapezoidal corrugated steel sheet is widely used in industrial and commercial buildings due to its high strength and low cost. However, unlike standing seam roofs that allow direct clamping, trapezoidal roofs require specialized mounting solutions,typically using L feet, clamps, or rail free systems to ensure a secure, leak proof, and code compliant PV installation.
The methods mentioned above,such as direct clamping on standing seam or angle type roofs typically require no roof penetration, as clamps rely on compression force. Today, however, we focus specifically on trapezoidal sheets. Unlike other profiles, trapezoidal roofs often need a different approach because their flat crests and lower ribs limit standard clamp use.
Due to the unique profile of trapezoidal sheets, clamps alone cannot secure solar panels effectively on the roof surface. So how is it done in the industry? Here are several common and proven methods currently used for trapezoidal corrugated steel roof PV installations let me share them with you.
1. Trapezoidal clamp + self-tapping screws on both sides
Features: The nailing points need to be properly waterproofed and sealed, and the thickness of the color steel plate cannot be too thin, otherwise the self-tapping screws will not be able to withstand the force.
2. Trapezoidal clamp + structural adhesive
Features: No damage to the tile surface, no risk of leakage; however, the warranty period and pull-out resistance of the structural adhesive are questionable.
3. Trapezoidal clamp + long self-tapping screws (or rivet bolts) anchored into the original structural purlins.
See the diagram below for rivet bolt installation.
4. Trapezoidal clamp + cold welding process
Features: Requires high-level construction techniques; thin tiles are prone to weld penetration.
For more information needed or any inquiry,please feel free to contact Yumisteel team.
The light steel villa market is booming, and the demand for professional quotations is increasingly urgent.
In recent years, light steel villas have gradually moved from an early conceptual product to a mature market. Whether for rural self-built houses, scenic resorts, retirement homes, or emergency housing, light steel villas have won the favor of more and more homeowners due to their advantages such as fast construction, good earthquake resistance, energy saving, and environmental protection. Correspondingly, inquiries about "how much does it cost to build a light steel villa" are becoming increasingly frequent. However, many clients new to this field, and even some small and medium-sized construction teams, lack a clear understanding of the pricing system for light steel villas. They often simply apply the "price per square meter" thinking of traditional brick-concrete structures, leading to a significant deviation between the quoted price and the actual cost, resulting in disputes over additional charges or project stagnation later on. Therefore, mastering a scientific, transparent, and operable method for quoting light steel villas is not only a reflection of the professional competence of practitioners but also a key link in protecting customer rights and promoting the healthy development of the industry.
The core logic of light steel villa pricing: From total price breakdown to itemized list
Pricing for light steel villas cannot be simply answered with "how much per square meter," but should follow the principle of breaking down costs layer by layer: "design—materials—construction—interior and exterior finishing."
A standard complete quote typically includes the following core cost components:
Cost Section
Specific Contents
Pricing Method and Remarks
Design and Detailing Fee
Architectural plans, structural calculations, keel fabrication drawings.
Approximately 3%-5% of the total cost.
Light Steel Keel Frame Material Cost
All keels formed by cold bending of aluminized zinc steel strips. Priced by tonnage or building area.
Steel consumption is approximately 25-35 kg per square meter. Unit price is affected by steel market fluctuations.
Light steel villas are lightweight and require less foundation than brick-concrete structures, but they still need to be calculated separately.
A standardized quotation should clearly list the brand, specifications, quantity, and unit price for each of the above items, avoiding vague terms like "package deal."
What detailed information must the homeowner provide before obtaining an accurate quote?
Any responsible light steel villa manufacturer or contractor must request the following five key types of information from the homeowner before providing a specific quote; none can be omitted.
First, detailed design drawings are essential, including at least the building's floor plan (room dimensions, door and window locations), elevations (building exterior, floor height), and sections (wall structure, roof slope). Accurate keel breakdown and material quantity calculations cannot be performed based solely on verbal descriptions or hand-drawn sketches.
Second, a geological survey report or foundation condition description of the project site is crucial. This includes information such as whether backfilling is required, groundwater level, and frost depth. These directly determine the foundation design scheme and cost.
Third, the owner's specific requirements for the finishing standards are vital. This includes whether the exterior walls will use metal carved panels or real stone paint, the interior walls will use latex paint or integrated wall panels, the flooring will be ceramic tiles, wood flooring, or carpet, and the doors and windows will be ordinary aluminum alloy or thermally broken aluminum. The price difference between different grades of materials can reach 300 to 800 yuan per square meter.
Fourth, local climate and load conditions are critical, such as basic wind pressure, snow pressure, and seismic fortification intensity. These parameters affect the keel cross-sectional dimensions and connection node design, thus influencing steel usage and cost.
Fifth, specific project requirements, such as whether to install a photovoltaic roof, solar water heating system, central air conditioning, or underfloor heating.
The more complete and accurate the information provided by the homeowner, the closer the contractor's quote will be to the final cost, and the fewer additional items will be added later. Conversely, a hastily given low-priced "estimate" without complete information will almost certainly lead to continuous additional costs during construction.
Transparent pricing is the cornerstone of trust, and professional calculations are the guarantee of quality.
As a typical example of industrialized construction, light steel villas should have a more transparent and predictable pricing logic than traditional buildings. For homeowners, don't blindly trust simple slogans like "XXX yuan per square meter all-inclusive," but proactively request detailed itemized quotes from multiple manufacturers and compare them horizontally. For industry professionals, establishing a standardized pricing template, proactively guiding clients to provide complete information, and confirming the brand and specifications of each material in writing are not only effective ways to avoid later disputes but also the best way to establish a professional image. Only when both supply and demand sides value the professionalism and transparency of pricing can the light steel villa industry truly shed its "chaotic pricing" label and embark on a path of healthy development.
For more information needed or any inquiry,please feel free to contact Yumisteel team.
