Now, ordinary industrial factories, warehousing and logistics storage buildings, and other simple factories are all using color steel tiles as construction materials. Initially, we needed to determine their quality issues, so we had to understand what material the color steel tiles are made of.
Color-coated steel sheet is a thin steel plate coated on both sides, processed into various corrugated patterns to enhance the mechanical properties of the thin plate, and used as roof tiles. It is a new type of building material with a surface layer of color-coated steel, stainless steel, etc., and a core layer made of lightweight, fire-resistant, and flame-retardant materials such as glass wool and rock wool. Single-layer color-coated steel sheets are generally used in places like factories where insulation and soundproofing requirements are not high. For residential and office applications, color-coated sandwich panels are typically used to improve insulation and soundproofing. Compared to asbestos tiles, color-coated steel plates have better mechanical properties, a larger span, are easier to handle irregular openings in construction, have a more aesthetic appearance, but are slightly more expensive.
If the colored steel tile is affected by external factors during use or if some products do not meet standards during production, it may develop gaps. However, to ensure there are no gaps when in use during construction, we need to find ways to address this; otherwise, it could impact the later performance. Next, let's explore the methods for achieving seamless processing of this product. Learn up, everyone!
1. First, clean out the original filling material between the color steel sheet gaps. Then, use a slotting machine to neatly cut the installed seams, ensuring minimal width differences between the panels. Finally, fill the gaps with marble glue that closely matches the color of the sheets, ensuring it is sufficient and resembles the original sheet color.
2. Once again, fill the adjusted marble adhesive. Due to slight shrinkage after curing, the marble adhesive should be slightly above the level of the board surface.
3. Utilizing polishing sheets and filling agents, the surface is made level with the color steel tiles, enhancing the overall appearance and resolving the issue of uneven heights between gaps.
4. Precision grind the cutting edge with a cutting blade.
5. Utilizing the product's crystalline powder and crystallizing agent, combined with a crystal surface polishing machine, the material and crystalline powder undergo a comprehensive physical and chemical reaction under high pressure grinding, forming a dense, hard crystalline protective layer.
Corrugated steel roofing panels offer advantages such as light weight, short construction periods, large usable areas, and suitability for industrial production. They are now widely used for building roofs. However, due to various reasons including design, construction, and material issues, leaks in corrugated steel roofing panels have become a common problem. Now, let's analyze the main causes of this leakage issue:
1. Mishaps during the production, transportation, and construction processes have led to the deformation of color steel panels. Poor quality color steel panels, due to construction on the roof with personnel, have resulted in deformation.
2. The effects of external forces like wind and rain cause the color steel roof to vibrate for extended periods, leading to prolonged wear at nail holes and iron sheet seams, which then rust upon contact with rain.
Why Would Self-Tapping Screws with Rubber Washers Still Leak Water?
1) Over-tightened self-tapping screws during construction have damaged the rubber pads.
2) The rubber pads age quickly, losing their waterproof capabilities soon, and the color steel roof, which has been weathered and corroded over a long period, gradually ages.
4. Primary Causes of Corrugated Steel Roofing Deformation:
1) Large roof spans can lead to accumulated water in the middle over time, increasing the gravitational load in the center. With more rain occurrences, the deformation becomes more severe, potentially leading to a collapsed roof.
2) Roofing with mineral wool, which has water-absorbing properties. During rainy or cloudy weather, the leaked rainwater from the roof accumulates in the mineral wool, increasing its weight.
3) During the summer, when the roof temperature of Xiaji was high, a sudden heavy rain caused the temperature of the color steel panels to drop sharply, leading to rapid contraction and deformation of the panels, as well as loosened nails.
5. Water leakage at the sloping edge of the roof and wall foot: Opt for waterproofing measures such as cementing the "eight character" corners, sealant, or waterproof paint. Cracks may appear when cement is not properly bonded with metal. Similarly, a low elongation rate of paint or sealant can also lead to large cracks.
Why Does Rainwater Flow Backwards? The phenomenon of backward flowing rainwater is a unique feature of colored steel roof surfaces, requiring specific conditions for its formation:
1) The overflow area is well-ventilated from both inside and outside. During rain, due to the pressure difference between the indoor and outdoor spaces, the lower indoor pressure draws rainwater in.
2) The strong winds outside have formed a wind tunnel through the ventilation, forcefully blowing rain inside.
