With the popularization of photovoltaic power generation technology, the requirements of photovoltaic roof systems for building materials are becoming increasingly stringent. As the bearing foundation of photovoltaic components, the roof not only needs to have basic functions such as waterproofing and weather resistance, but also needs to meet higher standards such as fire prevention, lightweight, and environmental protection. Fire-resistant PVC Himei waterproof tiles have become an ideal choice for photovoltaic roofs with their unique performance combination. This article will analyze its core advantages from the dimensions of safety, economy, and environmental protection.
1. Fire safety: reducing the risk of fire in photovoltaic systems
Due to the concentration of electrical equipment in photovoltaic systems, there is a potential risk of fire caused by short circuits or arcs. Traditional asphalt-based waterproof materials are easy to burn when exposed to fire, while PVC Himei tiles can reach the B1 fire protection standard (GB8624-2012) by adding flame retardants. They can quickly extinguish themselves when exposed to open flames, effectively preventing the spread of fire. In addition, its materials do not produce molten droplets, avoid secondary ignition, and provide double protection for the overall fire protection of the roof. This feature is particularly important for industrial and commercial photovoltaic projects that need to pass fire inspections.
2. Long-term waterproofing and weather resistance: protect the stable operation of the photovoltaic system
The photovoltaic roof needs to withstand long-term sunlight, rain, snow and temperature changes. PVC Himei tiles adopt a polymer lamination process and heat welding treatment at the seams to achieve zero leakage. Its surface anti-ultraviolet coating can withstand extreme temperatures of -40℃ to 120℃, avoiding the rupture of the waterproof layer due to material aging, and ensuring the stability of the photovoltaic bracket foundation. Experimental data show that its service life can reach more than 25 years, matching the life cycle of photovoltaic panels and reducing mid-term maintenance costs.
3. Convenient installation: shorten construction period and reduce overall cost
The modularly designed PVC Himei tiles support dry construction without open flames or heavy machinery. Taking a 20MW distributed photovoltaic project as an example, compared with traditional waterproof membranes, its installation efficiency is increased by 40% and the construction period is shortened by 3-5 days. At the same time, the recyclable nature of the material reduces construction waste, meets the requirements of green building certification (such as LEED), and helps the project obtain policy subsidies or carbon credits.
4. Economic advantage: lower life cycle cost
Although the initial purchase cost is slightly higher than asphalt shingles, the maintenance-free nature of PVC shingles significantly reduces long-term expenses. Calculated over a 25-year period, its comprehensive cost (including installation and maintenance) is more than 30% lower than traditional materials. In addition, its excellent fireproof performance can reduce premiums, and some insurance companies offer rate discounts for projects using B1-level fireproof materials.
