几种彩钢瓦屋面防水施工方案的优缺点

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唐山彩板厂家——天物彩板根据多年的防水施工经验，总结了几种常用的彩钢屋面防水施工方案的优缺点，对钢结构工程施工具有一定的参考意义。西部地区的企业。防水施工。

1:国外流行的施工方法
防水层结构：自粘层+聚酯无纺布+防晒涂料
施工方法：将自粘层直接粘贴在彩板上，然后涂高档防晒漆+聚酯无纺布+两种高档防晒漆。
防水原理：用自粘层封住原色板上的所有裂缝、钉子和孔洞。无纺布能抵抗色板的剪切力和膨胀力。防晒涂料不仅能抵抗太阳紫外线，而且能保护防水层。
优点：防水层作为一个整体，油漆层可以改变成各种颜色，以达到与原来住宅屋顶相同的颜色。使用寿命长。
缺点：施工时间长，成本高。
2：国内设计院普遍采用的施工方法
防水层结构：PE膜+PVC防水膜施工方法：将聚乙烯薄膜作为防潮层放置在彩板上，铺设保温板，用自攻钉固定PVC防水薄膜，用焊机焊接边缘接缝。

防水原理：PVC防水膜无缝覆盖整个屋顶。
优点：屋顶防水层成为一个整体。
缺点：防水层采用自攻钉固定，宽度大于2米。整个屋顶的防水层是空的。防水层一旦损坏一点，平时应通风，屋顶的整个防水层将被完全破坏。施工要求高，难度大。
建议：使用我公司的三合一产品（自粘聚合物EVA）代替。
3：我公司主要施工方法

产品名称：金属屋面防水卷材
防水层结构：自粘层+聚酯无纺布+金属铝箔（注：三者为一个整体产品）
防水原理：色板上的自粘层牢固，能阻挡色板所有可能渗漏的部位。涤纶非织造布具有很强的拉伸强度。铝箔可以起到防晒、隔热、散热的作用，同时保护整个防水层。

优点：施工方便，成本低。完全隔离色板与空气的接触，达到防水防腐的效果。为方便，施工单位不按正常施工方法或局部施工，造成屋顶温度不同，缩短使用寿命。
4：常用的传统施工方法
防水层结构：聚酯非织造布+防晒涂料
施工方法：施工时先铺聚酯无纺布，然后刷防晒漆，凝固后刷防晒漆。
防水原理：涂料直接密封在彩板屋顶上，聚酯无纺布起到张力作用，防水层表面成为一个整体。
优点：成本低，施工方便。
缺点：
首先，由于市场上很少有生产屋顶专用防水涂料的厂家，大多数施工单位使用普通防水涂料。因此，防水层很快失去防水功能
其次，市场上没有聚酯无纺布，施工单位只能用普通无纺布代替，普通无纺布基本上没有拉力，只有填充效果。
Based on years of waterproofing construction experience, Beijing Chaocheng Color Steel Co., Ltd. summarizes the advantages and disadvantages of several commonly used waterproofing construction schemes of color steel roof, which has a certain reference significance for steel structure construction enterprises in the western region. Waterproof construction.
1: Construction methods popular abroad
Waterproof layer structure: self-adhesive layer + polyester non-woven fabric + sunscreen coating
Construction method: The self-adhesive layer is directly pasted on the color board, and then coated with high-grade sunscreen paint + polyester non-woven fabric + two kinds of high-grade sunscreen paint.
Waterproof Principle: Seal all cracks, nails and holes in the primary color board with self-adhesive layer. Non-woven fabrics can resist the shear force and expansion force of the color plate. Sunscreen coating not only resists the ultraviolet rays of the sun, but also protects the waterproof layer.

Advantages: Waterproof layer as a whole, paint layer can be changed into a variety of colors to achieve the same color as the original residential roof. Long service life.
Disadvantage: Long construction time and high cost.
2: Construction methods commonly adopted by domestic design institutes
Waterproof layer structure: PE film + PVC waterproof film
Construction method: Place polyethylene film as moisture-proof layer on color board, lay insulation board, fix PVC waterproof film with tapping nail, and weld edge seam with welding machine
Waterproof principle: PVC waterproof film sealessly covers the whole roof.
Advantages: The roof waterproof layer becomes a whole.
Disadvantage: The waterproof layer is fixed by self-tapping nails, and its width is more than 2 meters. The waterproof layer of the whole roof is empty. Once the waterproof layer is damaged a little, it should be ventilated at ordinary times, and the whole waterproof layer of the roof will be completely destroyed. The construction is demanding and difficult.
Suggestion: Use our company's three-in-one product (self-adhesive polymer EVA) instead.
3: Our company's main construction methods