Installing magnesium oxide (MgO) boards on a joist structure is a reliable method to enhance the stability and durability of flooring systems. Below is a step-by-step guide on how to install MgO flooring boards using joists.
1. Preparation
- Materials and Tools
Gather the necessary materials, including MgO boards, wooden or metal joists, screws, expansion bolts, a level, moisture barrier (optional), and installation tools such as a drill, hammer, etc. - Surface Cleaning
Before installation, ensure that the floor surface is clean and level. Remove any debris and make sure the surface is smooth. If the surface is damp, it’s advisable to lay down a moisture barrier to improve the floor’s resistance to moisture.
2. Installing the Joists
- Determine Joist Layout
Plan the joist layout based on the floor dimensions. Typically, the joist spacing should be between 40-60 cm (16-24 inches). Use a level to ensure the joists are installed evenly, which is crucial for a level floor. The choice between wooden or metal joists should be based on the environmental conditions and load requirements. - Securing the Joists
Place the joists in their designated positions and use expansion bolts to secure them to the floor. Ensure that all joists are at the same height to avoid uneven flooring. If using wooden joists, consider applying a protective coating on the areas in contact with the floor to extend their lifespan. - Reinforcing the Joists
Install cross-bracing between the main joists to further stabilize the structure. These cross braces should be placed perpendicular to the main joists, with spacing that matches the MgO board dimensions. This ensures that the edges of the boards are fully supported.
3. Laying the MgO Boards
- Cutting the Boards
Measure and cut the MgO boards to fit the floor layout and joist spacing. Ensure the edges of the boards are cut cleanly to allow for tight seams and secure installation. - Securing the Boards
Place the cut MgO boards onto the joists and secure them with specialized screws. The screws should be spaced 20-30 cm (8-12 inches) apart, with even distribution along the edges and across the center of the boards. Make sure the screws are flush with the surface of the board to avoid any protrusions. - Handling Expansion Gaps
Leave a small expansion gap (typically 3-5 mm) between the boards to accommodate potential expansion and contraction due to changes in temperature and humidity. Fill these gaps with sealant or caulk to prevent dust and moisture from penetrating.
4. Surface Finishing
- Leveling Check
Once the boards are installed, use a level to check the evenness of the floor. Adjust as necessary to ensure there are no noticeable high or low spots. - Installing the Top Layer
Depending on your requirements, you can add a decorative top layer such as vinyl flooring, tiles, or hardwood on top of the MgO boards. This layer not only enhances the aesthetic appeal of the floor but also adds an additional protective layer, prolonging the floor’s lifespan.
5. Conclusion
Using a joist structure for installing MgO boards not only strengthens the floor but also improves its sound insulation properties. This method is straightforward and efficient, making it suitable for various flooring applications. By following these steps meticulously, you can ensure that the MgO board floor remains stable and durable for years to come.
