For those in procurement and engineering, when they receive a sample of PVC roofing tiles, the first thing they want to know is whether it’s sturdy and durable. Just listening to the salesperson isn’t enough; you need to look at the actual performance data.
Having worked in the roofing materials industry for so many years, today I’d like to break down a few key metrics to explain exactly what makes PVC roofing tiles so great—and which data points you need to keep a close eye on.
Let’s start with fire resistance. In places like factories and warehouses, fire safety is of the utmost importance.PVC Roof TilesOne of the key reasons it is widely used in industrial buildings is its flame-retardant properties. According to national standards, compliant PVC roofing tiles are classified as Class B1 flame-retardant materials. What does this mean? It means that once the ignition source is removed, the fire will extinguish itself within seconds; it will not continue to burn, nor will it drip or melt like ordinary plastic, thereby fueling the fire. Many customers ask, “What if a fire breaks out in the workshop?” At the very least, PVC roofing tiles won’t act as an “accomplice.” Some low-quality tiles, in an effort to cut costs, contain excessive amounts of calcium powder, which significantly compromises their flame-retardant properties—they catch fire at the slightest spark. You should absolutely avoid buying those.
Now let’s talk about corrosion resistance. This property is primarily determined by how the material performs in acidic, alkaline, and saline environments. A goodanticorrosive tiles(A type of PVC roofing tile) has undergone third-party testing: when soaked for 24 hours in sulfuric acid, hydrochloric acid, or saturated brine at concentrations of 601 TP3T or lower, the surface shows no blistering or discoloration, and the weight change is negligible. Consequently, it is widely adopted in chemical plants, electroplating workshops, and livestock farms (where ammonia causes corrosion). In contrast, color-coated steel roofing sheets rust through within six months in such environments.
Impact resistance is also crucial, especially in areas prone to hailstorms or where there is a risk of heavy objects falling during installation. The national standard includes a drop-weight impact test—in which a 1-kilogram steel ball is dropped from a height of 1 meter onto the roof surface. Qualified PVC roofing tiles will not crack; at most, they may develop a white spot. Some manufacturers can even achieve a 2-meter drop without cracking. It’s important to note that impact resistance is directly proportional to thickness and also depends on the formulation. Tiles made from virgin material are more flexible, while those made from recycled material are brittle and shatter easily upon impact. Therefore, when purchasing tiles, don’t just look at the thickness; make sure to ask whether they are made from virgin material.
There’s also thermal and sound insulation. The thermal conductivity of PVC roofing tiles ranges from approximately 0.22 to 0.325 W/(m·K), while that of color-coated steel roofing tiles is over 50. That’s a difference of two orders of magnitude. In the summer heat, the area under color-coated steel roofing feels like an oven, whereas the temperature under PVC roofing can be 4 to 8 degrees lower. In terms of sound insulation, the noise from heavy rain hitting PVC roofing is more than 30 decibels lower than that of color-coated steel roofing. This difference is very noticeable and can be heard clearly. After replacing their roofing, many business owners“ first reaction is, ”Finally, it’s not as loud as thunder anymore.”
Finally, let’s discuss service life and weather resistance. High-quality PVC roofing tiles can last for over ten years outdoors with minimal color fading, no surface chalking, and mechanical property retention rates of 80% or higher. This is due to the ASA (acrylonitrile-styrene-acrylate copolymer) layer on the surface, which provides UV resistance and anti-aging properties. Some low-end tiles, in an effort to cut costs, have a very thin ASA layer or none at all; they fade and turn white within six months and become brittle and crack within two years.
When you consider all these factors, it becomes clear why more and more projects are specifying PVC roofing tiles. Of course, this is assuming you choose the right one.PVC Tile ManufacturersSpecifications are just numbers, but when you choose the right manufacturer, those numbers become reality.
PVC Roof Tiles
Introduction to Gaoyi PVC Roofing Tiles:
Keywords: PVC tiles, PVC plastic tiles, PVC high pit tiles, UPVC tiles
[Product Characteristics
Offers a 25-year warranty and 10-year colorfastness.
pvc tiles/PVC tiles/ASA-PVC tiles are made of anti-aging scientific formula, with PVC as the main raw material and mixed with UV anti-ultraviolet extrusion, shielding extrusion, antioxidants, modifiers and other super weathering chemical materials. It is produced by European advanced co-extrusion technology. It can convert the UV light energy of sunlight into heat energy and release it, block the oxidization reaction between air and material and add shielding material in the core layer to prevent the penetration of light again, thus greatly extending the service life of the tile.
- Excellent corrosion resistance
As a modified plastic, it has the corrosion-resistant properties of plastic itself. It has no chemical reaction when immersed in alkali, salt, and acids up to 60% for 24 hours. Ideal for corrosive plants, acid rain prone areas and coastal areas.
- Good soundproofing
The composite co-extruded core layer shielding structure greatly reduces the spread of sound. In the wind, rainstorms and other external noise impact, has a very good noise absorption effect, than the color plate noise drop of more than 30dB.
- Strong fire resistance
The fireproof performance is tested by the national fire prevention department ≥ B1 level, which is a flame retardant material.
- Excellent water resistance
Dense and non-absorbent, large sheet area reduces roof seams.
- Excellent load resistance
It has good loading performance, and does not produce damage and breakage phenomenon in low-temperature areas under year-round snow accumulation. Tested using 2.0MM thick UPVC tile in the support spacing 600MM under the case of loading 100KG, tile will not produce cracks damage phenomenon.
- Excellent thermal insulation performance
The coefficient of thermal conductivity is 0.325W/M.K, which is about 1/310 of clay tile, 1/5 of cement tile and 1/2000 of color steel tile. At the same time, it is full-shading, which greatly improves the heat insulation performance. The experiment proves that the heat insulation effect is 3~4℃ lower than the color steel plate.
- Good impact resistance
Strong impact resistance. Tested: 1 kg steel ball dropped freely from a height of 3.0 meters without cracking.
- Particularly good insulation
It is an insulated product and will remain intact in the event of an accidental discharge. It is a safer alternative to metal tiles in thunderstorm areas and near high voltage lines.
- green
It does not contain asbestos and radioactive elements and is recyclable, which is fully in line with the requirements of green environmental protection.
