Prefabricated Concrete House Roof Panels
Prefabricated concrete house roof panels mainly include prefabricated slabs, composite slabs, and prefabricated concrete roof products available on Baidu Aicai Platform, among other types.
Prefabricated slabs: These were a commonly used floor slab form in early 20th-century construction, serving as modules or panels required for engineering projects. They are concrete prefabricated components produced and processed at prefabrication yards. During production, a hollow wooden mold is first nailed together, steel bars are placed in the hollow part of the mold, and then cement is poured in. After drying, the wooden boards are knocked off to obtain the prefabricated slabs. These slabs have a wide range of applications in the construction field, such as cement covers for ditches beside highways and cement boards for roof insulation layers. However, with the development of construction technology, this method has been phased out in modern housing construction, which now adopts frame structures and reinforced concrete structures instead.
Composite slabs: Formed by the combination of prefabricated slabs and cast-in-place reinforced concrete layers, composite slabs belong to the category of assembled monolithic floor slabs. They are suitable for high-rise buildings and large-span buildings, with common spans ranging from 4 to 6 meters and a maximum span of up to 9 meters. Their prefabricated slabs serve both as structural components and permanent formwork. Pipes and wires can be laid within the cast-in-place layer, and expanded polystyrene boards can be filled to form a box-shaped cross-section, reducing self-weight and achieving sound insulation effects. This structure combines prestressed thin slabs with the cast-in-place layer, with the surface of the thin slabs treated with roller indentations to enhance bonding. The thickness of the cast-in-place layer is determined based on the span, usually not less than 90mm. Composite slabs offer advantages such as strong overall continuity, template savings, and ease of transportation and installation. They have been applied in key projects such as the Beijing Changping Life Valley International Pharmaceutical Smart Manufacturing Park (Phase II), which commenced construction in March 2026, and the Quzhou Beihang Digital Economy Industrial Park project undertaken by Zhejiang No.1 Construction Group, where assembled composite slab technology was used.
Prefabricated concrete roof products: There is a wealth of information on these products available on Baidu Aicai Platform. These products come in a variety of brands, such as Yongshi and Jinlifang double-T slabs; they are available in various shapes, including rectangular and circular; they have different compressive strength grades, such as 10MPa and 25MPa; and they are classified into different product grades, including first-grade and special-grade, to meet various construction needs.
