PEMB Building

What is a PEMB（Pre-Engineered Metal Building） Building?

PEMB Building (Pre-Engineered Metal Building) is a prefabricated steel structure building system designed for rapid construction of high-strength, long-span spaces. Unlike traditional on-site construction methods, all core components of PEMB buildings are pre-manufactured in a controlled factory environment and then transported to the project site for efficient assembly. This innovative approach allows it to flexibly adapt to a variety of scenarios, including industrial warehouses, manufacturing workshops, retail spaces, and even customized residences.

Choosing a PEMB solution for steel structure construction can significantly improve project efficiency and economy. Its modular characteristics greatly shorten the construction period, lean production reduces material waste and achieves cost savings, and the standardized design framework supports highly customized layouts (such as column-free long-span spaces), meeting diverse needs from basic warehousing to complex functions.

5 key Components of PEMB building construction

foundation plans for steel building

The foundation is an important part that supports the entire steel manufacturing building. Its bearing capacity is directly related to the stability and safety of the factory. Steel structure buildings generally have the characteristics of lightweight and large span, and the requirements for the foundation are relatively high. The methods of foundation treatment are different for different geological conditions and bearing requirements.

The following are several commonly used foundation treatment methods:

• Compacting method: compact the foundation mechanically or manually to improve the density and bearing capacity of the soil. This method is suitable for loose soil layers and can effectively reduce settlement.
• Pile driving method: pile driving method can be used in the case of insufficient bearing capacity or uneven soil layers. By driving the pile foundation into a deeper hard soil layer, the overall bearing capacity is enhanced.
• Foundation reinforcement: For some special geological conditions, chemical grouting, cement slurry injection and other methods can be used for foundation reinforcement. This method can effectively improve the bearing capacity and stability of the foundation.
• Replacement method: Replacement treatment can be carried out in the case of insufficient foundation bearing capacity. The original soil layer is excavated and filled with materials with higher bearing capacity to ensure the stability of the foundation.

Main frames

As the core load-bearing system of prefabricated metal buildings, the main frame is made of high-strength structural steel (usually Q355B grade steel) through high-frequency welding technology to form an H-shaped steel column and beam system. It bears all the static loads (such as roof weight) and dynamic loads (such as wind pressure and earthquake force) of the building. Its precise design and manufacturing directly determine the structural safety, durability and span customization capabilities of the project.

Secondary Framing

The secondary frame forms a secondary support network for prefabricated buildings. It includes components such as purlins, ties, braces, corner braces, supports, etc.
The secondary frame structure plays a vital role in strengthening the structural integrity and stability of the building. These components are usually made of durable steel materials and have multiple functions that contribute to the overall strength and function of the structure. For example, purlins are horizontal beams that are parallel to the main roof frame members and provide support for the roof deck. By evenly distributing the weight of the roof on the building’s frame, purlins help prevent sagging and ensure structural integrity, especially in larger spans or areas with heavy snow loads. Secondary frame systems often use Q235B steel, which is galvanized or painted to prevent rust.

Enclosure system

The enclosure structure consists of two modules: roof panels and wall panels, which provide physical closure and wind and rain protection.

The enclosure structure usually uses color steel tiles or composite sandwich panels. Color steel tiles are light and durable, suitable for factories and warehouses with high space requirements; composite sandwich panels are filled with materials such as rock wool, which have both thermal insulation and fire resistance.

These panels have various finishes to meet aesthetic and functional requirements. Customers can choose according to the purpose of the project and the use environment.

Functional accessories

Functional accessories are an indispensable part of PEMB buildings. They help improve the overall functionality, comfort and energy efficiency of the building.
Among these accessories, the door and window system meets the basic needs of lighting and ventilation, and the reasonable configuration of the roof air tower can enhance indoor air circulation and improve indoor air quality. The gutter system ensures that the roof drainage is unobstructed during the rainy season.

PEMB building frame types

As a professional PEMB manufacturer, K-HOME provides two mainstream PEMB building frame systems: portal steel frame and frame steel frame to meet the structural requirements of different application scenarios.

portal steel frame

The portal steel frame adopts a large-span rigid frame design, consisting of variable-section H-shaped steel columns and inclined beams to form an open space without intermediate support. It is particularly suitable for industrial plants, storage centers and logistics warehouses that require a wide internal layout. Its structural advantages are fast construction, cost-effectiveness, and flexibility to adapt to different span and height requirements.

Types of portal steel frames

frame steel frame

The frame steel frame constructs multi-story or high-rise steel structures through standardized beam-column nodes, with stronger load-bearing capacity and seismic resistance. It is suitable for projects such as commercial buildings, office buildings and multi-story workshops that require higher structural stability.

Both systems are made of Q355B high-strength steel, which are accurately calculated and prefabricated in the factory to ensure the safety, durability and rapid construction advantages of the building.

K-HOME can provide the most optimized steel structure solutions according to your project needs, from single-story large-span factories to multi-story industrial facilities, to achieve efficient and economical construction goals.

Key advantages of PEMB building structures

1. Construction speed

One of the most significant advantages of PEMB building is its fast construction time. Since the building components are prefabricated and manufactured off-site, the flow of tasks on the construction site will not be disturbed. Despite the adverse external weather conditions, the fabrication of PEMB materials continued. These steel structure kits can be quickly assembled after being delivered to the site, which can reduce the construction time by up to 50% compared to traditional methods. It is particularly suitable for industrial and commercial projects that need to be put into production quickly.

2. Cost-effectiveness

Pre-engineered metal building construction is generally more cost-effective than traditional building methods because it can effectively use materials, reduce labor requirements and shorten construction time.

3. Customized flexibility

PEMB building design is flexible and can meet user-specific needs and preferences. As a professional manufacturer, K-HOME is able to provide precise customization services on key parameters such as building span, height, and load-bearing capacity according to the specific usage needs of customers. We provide integrated solutions from design to installation to ensure the smooth implementation of the project.

4. Durability and Strength

The inherent advantages of steel structures enable prefabricated metal buildings to easily cope with harsh environmental challenges such as extreme climates and seismic activity. This feature ensures that steel-structured buildings can maintain excellent structural integrity and safety performance throughout their life cycle.

5. Sustainability

Pre-engineered building structures are constructed using steel. Steel is a highly recyclable material that can reduce waste and minimize the environmental impact of construction projects.

Application of Pre-Engineered Metal Building

PEMB buildings have become the preferred solution for many fields due to their durability, fast construction and long-term benefits. From large industrial facilities to commercial spaces, PEMB systems can flexibly adapt to the unique needs of different industries, providing economical, efficient and durable building options for various projects.

Industrial workshops and warehouses

PEMB buildings are particularly prominent in the construction of industrial plants and cargo warehouses. They can build large-span column-free designs, provide spacious interior spaces, and can adapt to different production layouts and the installation of heavy equipment.

Commercial pre-engineered buildings

Many shopping malls and supermarkets are also increasingly built with steel structures. The flexibility of steel structures can be built into fully enclosed or semi-enclosed structures to meet different business needs.

Public and community facilities

More and more indoor basketball courts, gyms, and libraries choose PEMB structures. Its fast construction characteristics can minimize the impact on the surrounding environment, while the seismic performance of steel provides additional protection for public safety.