How to Prefabricate a Roof for a Terrace

The roof of a terrace can be prefabricated using methods such as prefabricated high-density cement pressure board construction, steel-structure concrete cast-in-place roofing, and foreign finished terrace prefabrication methods. Here are the details:

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Prefabricated High-Density Cement Pressure Board Construction: This method primarily uses prefabricated high-density, high-strength cement pressure boards. Before construction, designers need to accurately calculate the specifications and sizes of the required steel materials based on the roof's span. Through reasonable design and material selection, the roof can achieve a load-bearing capacity of 2 tons per square meter, meeting the needs of a walkable roof where people can engage in activities without worrying about the roof's load-bearing capacity. The advantage of this method lies in its relatively simple construction process and its ability to ensure the basic load-bearing function of the roof.

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Steel-Structure Concrete Cast-in-Place Roofing: First, identify the load-bearing walls of the original structure, which are the foundation and key to the entire construction process. Perform steel bar planting and welding operations on the load-bearing walls to create ring beams, and pre-embed chemical anchors in advance. Next, set up formwork at the bottom to prepare for subsequent cast-in-place work. Then, mix and pour the concrete using equipment according to a certain ratio to ensure the quality and uniformity of the concrete. Finally, perform water curing, adjusting the curing process according to weather conditions. This method results in a more solid and stable roof that integrates with the original structure, offering advantages such as high strength, good sound insulation, and no rebound. It is generally suitable for permanent buildings but involves a relatively complex construction process that requires a professional construction team and strict quality control.

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Foreign Finished Terrace Prefabrication Method: First, open up your own roof and then install a finished terrace. Finished terraces are usually composed of steel structures forming a three-dimensional triangular terrace, which provides a certain degree of stability and aesthetics. Install a full row of guardrails at the front of the terrace for protection, ensuring the safety of people on the terrace. Create a threshold about 20 cm high between the added three-dimensional triangular terrace and the interior, and add glass sliding doors. When the sliding doors are closed, the roof terrace and the interior are completely separated, increasing spatial independence and providing some sound insulation and thermal insulation. At the same time, ensure a tight fit between the steel structures of the finished terrace and the roof surface, and install floor drains and drainage pipes to ensure that snow and rainwater can automatically drain away during rainy or snowy weather, preventing water accumulation from damaging the roof.