II. Production

Core Building Components

Main steel frame: Consists of steel columns, steel beams, roof purlins and wall purlins, mainly adopting H‑section steel, C‑channel steel and Z‑section steel. Steel members are treated by hot‑dip galvanising or anti‑corrosive painting for rust‑resistance, to bear loads from the roof, wind, snow and equipment.

Insulated enclosure panels: Roof panels and wall panels. Polyurethane sandwich panels are widely used, featuring thermal insulation, moisture‑proof and fire‑resistant properties. Panel thickness is selected according to northern and southern climates; thicker panels are used in northern regions, while heat insulation and ventilation are prioritised in southern regions.

Building accessory components: Insulated air‑tight main doors, access doors, fan openings, cooling‑pad openings, reserved positions for side‑wall ventilation windows and daylighting panels. Waterproof treatment is applied to eaves and ridges to prevent rainwater leakage.

Internal civil‑engineering foundation: Independent concrete foundations and cement‑hardened floors. Equipment bases are constructed for cage‑rearing systems; manure‑removal tunnels under nets are reserved for net‑bed systems. Drainage ditches and sewage‑collecting trenches are installed.

Embedded pre‑installation works: Reserved openings and embedded parts for fans, cooling pads, feed lines, water lines, cable trays and sensor pipelines, to guarantee seamless installation and connection of breeding equipment in later stages.

Production and On‑site Implementation Process

Drawing design: Construction drawings are produced based on breeding scale, equipment layout, local wind‑snow loads and climatic conditions.

Factory prefabrication: Cutting, welding and anti‑corrosion treatment of steel‑structure components, production of sandwich panels, number‑marking and packing of parts for delivery to the construction site.

On‑site construction: Foundation pouring and curing → hoisting and assembly of steel components → installation of roof and wall insulation panels → construction of door and window openings → waterproof and sealing treatment → civil‑engineering construction of internal floors and tunnels.

Hand‑over and acceptance: Upon building completion, the project is handed over to the equipment‑installation contractor for overall final acceptance. Inspection items include air‑tightness, structural strength, waterproof and thermal‑insulation performance.

III. Services

Pre‑project planning and design: Site survey. Determine poultry‑house dimensions and layout according to breeding species, stocking capacity and supporting equipment. Complete architectural schemes and construction drawings combined with local wind‑snow loads and climate conditions, and provide assistance for investment estimation.

Production and construction: Factory fabrication of steel‑structure components, on‑site hoisting and erection by professional teams, supporting civil‑engineering construction and waterproof‑sealing works.

Technical disclosure: Conduct building‑related technical disclosure to breeding‑equipment installers, clarifying opening positions, embedded parts and load parameters to guarantee matching between buildings and breeding equipment.

After‑sales maintenance: Steel‑structure inspection, checking bolt tightness, panel damage and water leakage; provide anti‑corrosion maintenance suggestions for steel structures; solve problems such as roof‑wall water seepage and panel damage.

Value‑added services: Reinforcement and renovation of old poultry houses; design and construction of auxiliary buildings including disinfection rooms and warehouses; supply architectural‑technical documents required for environmental‑impact assessment and project acceptance.

IV. Advantages

Short construction cycle: Factory‑prefabricated components and on‑site assembly construction greatly shorten the construction period compared with brick‑concrete poultry houses, enabling fast commissioning and production.

High structural strength: Light self‑weight, good overall rigidity, strong wind‑snow resistance and large clear‑span width. Few internal columns are left inside the house, facilitating layout of automatic equipment with no restrictions on cage or net‑bed arrangement.

Excellent thermal insulation and air‑tightness: Polyurethane insulation panels deliver outstanding overall sealing performance, which is favourable for negative‑pressure ventilation, ensures full function of environmental‑control systems, helps regulate indoor temperature, humidity and ammonia concentration and cuts energy consumption.

High space‑utilisation rate: Large‑span design creates spacious interior space, allowing smooth passage for chicken‑catching, duck‑catching and manure‑removal machinery, and fits large‑scale automated farming.

Flexible disassembly and reconstruction: Standardised components support later‑stage reconstruction and expansion; part of the steel members can be recycled and reused if the farm is relocated.

Easy biosecurity management: Integrated wall and roof panels leave fewer gaps, reducing hiding places for rodents and pests. Hardened cement floors inside the house support high‑pressure flushing and disinfection after batch slaughter, meeting washing‑and‑disinfection requirements for the all‑in‑all‑out production model.

Objective limitations: Steel structures require regular anti‑rust and anti‑corrosion maintenance; fire‑resistant panels must be selected properly; high‑quality foundation construction is mandatory, and foundation settlement will impair the whole building.