How to Make a Mushroom Roof for Prefabricated Houses

The production of mushroom roofs for prefabricated houses mainly adopts the method of concrete pouring using prefabricated molds, with the following specific steps:

Design and Style Selection

The design of the mushroom roof style should harmonize with the overall architectural style and carry cultural connotations. Common styles include:

• Traditional Taoist Hat: Resembling the ancient Taoist hat, it symbolizes attracting wealth and prosperity and is commonly seen in traditional Chinese architecture.
• Official Hat Roof: Mimicking the shape of ancient official hats, it represents a family producing many talented individuals and achieving success in their careers, often used in ancestral halls or cultural buildings.
• Hui-style Door Canopy: Integrating elements of southern Hui-style architecture, it features exquisite craftsmanship and is common in the Jiangnan region.
• Modern All-aluminum Hat: Utilizing industrialized finished products, it is easy to install, impressive, and durable, suitable for modern minimalist-style buildings. When designing, one can draw inspiration from the variations of hard-top or gable-top roofs commonly used in residential buildings in ancient architectural roof hierarchies, achieving style uniformity through standardized molds.

Material and Tool Preparation

The core tool is standardized steel molds, and specifications should be selected according to the function of the components:

• Large Roof Mold: As the main structure of the gatehouse roof, common dimensions are 7000×2000×300 mm or 7000×2200×300 mm, requiring high strength to withstand concrete pressure.
• Middle Cap Mold: Forms a sense of hierarchy in conjunction with the roof cover, with some new Chinese-style molds incorporating carved elements to enhance decorativeness.
• Lintel Mold: A key load-bearing component connecting the gate posts and the large roof, with a standard length of 5000 mm and a width ranging from 200 to 600 mm (e.g., 500×200 mm), ensuring even force distribution to avoid cracking.
• Column Mold: Common specifications are a height of 4000-4500 mm and a width of 800-1000 mm (e.g., 4000×800×800 mm), requiring high-strength steel for production to ensure wind and earthquake resistance. In addition, auxiliary materials such as concrete, steel bars, and mold release agents, as well as construction tools like vibrating rods and leveling instruments, are required.

Core Construction Process

This method is suitable for standardized and mass production, with the main process including:

1. Mold Assembly: Assemble the large roof, middle cap, lintel, and column molds according to design requirements and fix them in place, ensuring tight joints.
2. Steel Bar Binding: Arrange steel bars within the molds according to the design spacing to form a framework and enhance structural strength.
3. Concrete Pouring: Pour concrete in layers and compact it with a vibrating rod to avoid honeycombing and pitting.
4. Curing and Demolding: After pouring, cover and maintain moisture for curing. Demold when the concrete strength meets the design requirements.
5. Finished Product Inspection: Check the surface flatness, dimensional deviations, and strength for compliance with standards. If qualified, transport to the site for installation.

Through standardized mold production, construction efficiency can be significantly improved, ensuring uniform component quality and suitability for large-scale prefabricated housing projects.