How to Prevent Dampness in Houses Made of Prefabricated Panels

To prevent dampness in houses made of prefabricated panels, the elevated prefabricated panel damp-proofing method can be adopted. This method offers good damp-proofing and insect-proofing effects and is durable, making it the best choice when the budget allows.

I. Foundation Construction
After the ground beam is poured, strictly control the height of the backfill soil, keeping it 30 - 50 centimeters above the ground level, and compact the backfill soil using professional tools. This step is crucial as the compacted backfill soil provides a stable foundation for subsequent construction, preventing uneven settlement caused by loose soil, which could affect the stability of the entire damp-proofing structure.

II. Ventilation Setup
Ensure that each room is equipped with corresponding vents that are directly connected to the outdoors. The function of the vents is to expel the "ground air" at the bottom of the house, which contains a large amount of moisture. If not expelled in a timely manner, this moisture will accumulate at the bottom of the house, leading to dampness issues. Through reasonable ventilation setup, air convection can be formed, effectively reducing the humidity at the bottom of the house and achieving the goal of damp-proofing.

III. Prefabricated Panel Installation
Lay bricks on the ground beam and install ventilation pipes. The function of the ventilation pipes is to further enhance the ventilation effect, ensuring smooth air circulation at the bottom of the house. Then, place the prefabricated panels, carefully adjusting their positions during placement to prevent misalignment. After the prefabricated panels are in place, use concrete for joint filling to ensure a tight connection between the panels and prevent moisture from seeping in through the gaps.

IV. Optimization Measures

• Adding a Reinforced Concrete Layer: Place a steel mesh on the prefabricated panels and then pour a reinforced concrete layer about 6 centimeters thick, with bricks laid around the edges. The steel mesh enhances the strength and stability of the concrete layer, while the reinforced concrete layer effectively blocks the rise of moisture, further improving the damp-proofing effect.
• Reserving Pipes and Joint Treatment: Reserve pipes to meet the installation needs of subsequent water and electricity facilities in the house. At the same time, properly treat the panel joints by using waterproof materials to seal them, preventing moisture from entering the house through the panel joints.