How Thick is a One-Story Prefabricated Cement House

The thickness of a one-story prefabricated cement house varies depending on the structural type. Common prefabricated slab thickness ranges from 120mm to 150mm, cast-in-place floor slab thickness ranges from 8 to 12 centimeters, and prefabricated wall thickness typically ranges from 120mm to 150mm.

Thickness of Cement Prefabricated Slabs

Cement prefabricated slabs are common floor or roof panel materials in prefabricated houses, and their thickness directly affects structural strength and functionality. According to engineering practice, common thicknesses are 120mm and 150mm. A 120mm-thick prefabricated slab is suitable for areas with smaller spans and lighter loads, such as bedrooms or living rooms in ordinary residences; a 150mm-thick prefabricated slab is used for areas with larger spans or heavy loads, such as floors in industrial plants or commercial buildings. Additionally, the selection of prefabricated slab thickness must consider building code requirements; for example, some regions stipulate that the minimum thickness of residential floor slabs must not be less than 120mm to ensure structural safety.

Thickness of Cast-in-Place Floor Slabs

If the house uses cast-in-place floor slabs instead of prefabricated slabs, the thickness range is typically 8 to 12 centimeters and must meet national code requirements. According to the Code for Design of Concrete Structures, the minimum thickness of cast-in-place floor slabs must not be less than 8 centimeters; otherwise, deformation or cracking may occur due to insufficient stiffness. The specific thickness must be adjusted according to room span, building type, and usage function:

• Ordinary residences: For smaller spans, floor slab thickness is mostly 8-10 centimeters;
• Top floors of high-rise buildings: Due to the need to withstand greater wind loads or equipment loads, the thickness must be increased to more than 12 centimeters;
• Special areas: Kitchens and bathrooms, which require waterproofing and load-bearing for pipelines, typically have floor slabs thickened to 10 centimeters;
• New technologies: Some prefabricated buildings use high-strength cast-in-place cement floor slabs, which can be compressed to 17 centimeters in thickness but require special reinforcement and construction techniques to ensure strength.

Thickness of Cement Prefabricated Walls

If the walls of a prefabricated house use cement prefabricated panels, their thickness is generally similar to that of floor slabs, with a common range of 120mm to 150mm. A 120mm-thick wall is suitable for non-load-bearing partition walls, such as lightweight walls dividing indoor spaces; a 150mm-thick wall is used for load-bearing walls or areas requiring higher sound insulation and fire resistance. It should be noted that the selection of prefabricated wall thickness must be coordinated with the overall building structure; for example, the connection points with frame columns and beams must ensure a clear load transfer path to avoid local stress concentration.

In summary, the thickness of a prefabricated cement house must be comprehensively determined based on structural type, load requirements, and code requirements. The thickness differences between prefabricated slabs and cast-in-place structures reflect the characteristics of different construction techniques, while wall thickness must balance functionality and safety.