How Prefabricated Building Foundations are Made | ModSpace


Hi, I’m Sam Tikriti and today, we’ll be giving you an overview of the modular pre fabrication process. Starting off with the material handling and storage section, you’ll see that one of the advantages of modular building manufacturing is the controlled environment where the building materials and equipment are stored inside the manufacturing facility and never impacted by rain snow or wind. This obviously enhances the quality of materials used in the modular buildings. Additionally, material handling and inventory procedures become more effective in contributing to an efficient and accelerated building process. Mobile modular buildings are typically constructed and positioned on structural steel frame that essentially serves two purposes. First is carrying the load of the building and second is transporting the pillars. There are two types of frames: a perimeter frame which consists of two perimeters steel I-beams and an intermediate joist or cross members. This frame is usually used for heavier buildings and where primitive foundations are required. An outrigger frame, which is what we see here consists of two junior I-beams with truss or solid cross members. This frame is usually used in lighter and more standardized buildings. All frame members are welded and painted with an anti rust paint The frames are carried by an axle system and depending on the weight of the building the number of axles are determined and it could vary from two to eight axles per building. Typically an axle is rated for 6000 pounds plus an additional safety factor. The tires usually are rated for 3,100 pounds and inflated to a cold pressure of 115 pounds. Here’s where the floor section is built. The first step in the process is to install an underlayment on the steel frame to protect the building from moisture, insects and pests. The floor section is then framed using traditional lumber. A standard floor configuration would consist of two by six stories at 16 inches on center Obviously that would vary depending on building size and projected design loads. The floor section is then placed on and bolted to the steel frame unphased bat installation with a standard r-value of 9 is then placed between the joists. The installation requirements will also vary depending on the project standards or requirements and location. Here we see the floor decking is being installed using 5/8 plywood tongue and groove decking which is secured to the framing below with adhesive and mechanical fasteners. Following that, the floor area is sanded to ensure a smooth substrate for the finished flooring application The vinyl floor tiles are installed in a controlled environment and allowed to cure before it moves on the next station The flooring from this point forward will also be protected to avoid any damage during the manufacturing process You

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