After TPO (thermoplastic polyolefin) waterproofing membrane is combined with steel plate, its performance is better than that of a single TPO waterproofing membrane, mainly for the following reasons:
1. Enhance mechanical strength
After the TPO coil is combined with the steel plate, the tensile strength and impact resistance of the overall structure are significantly improved. Although the TPO membrane itself has good elasticity and tear resistance, its strength is limited when facing a wide range of stress or external impact. As the base material, the steel plate provides additional rigidity and strength and can better resist external mechanical pressure.
2. Improve durability
The durability of steel plate composite materials greatly improves the overall life of TPO coils. Steel plates are corrosion-resistant and wear-resistant, and can provide a physical protective layer for TPO to reduce erosion of TPO coils from ultraviolet rays, chemical substances or other environmental factors. Especially in buildings exposed to harsh climate or chemical corrosion environments, composite structures have better weather and chemical resistance.
3. Improve wind resistance
The composite TPO waterproof membrane and steel plate can be more firmly fixed on the building surface, especially in areas with high wind pressure or typhoon-prone areas. The steel plate increases the weight and stability of the system, reducing the risk of TPO coils shifting or falling off in strong winds, thereby enhancing the overall wind resistance.
4. Better thermal expansion and contraction control
A single TPO material may experience significant thermal expansion and contraction when faced with temperature changes. However, after the steel plate is combined with TPO, this effect can be effectively reduced due to the low expansion of the steel plate, making the entire waterproof layer fluctuate greatly in temperature. It remains stable despite the situation and avoids cracking or delamination.
5. Improve carrying capacity
The load-bearing capacity of composite materials has been improved, especially in scenarios where the waterproof layer needs to bear a certain amount of weight (such as roof equipment installation, etc.). The composite TPO and steel plate can provide additional support to ensure that the waterproof layer does not hold up under long-term pressure. Damage will occur.
Generally speaking, after the TPO waterproof membrane is combined with the steel plate, it combines the flexibility and waterproofness of TPO with the strength and durability of the steel plate, allowing it to provide more reliable waterproof protection in various extreme environments.