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At present, the national and local governments have issued policies to encourage the development of new energy. In the solar field, residential and industrial solar mounting systems have emerged in more and more places, and become one of the most popular solar mounting system solutions.

目前国家以及地方政府都有出台鼓励新能源的发展，在光伏领域，分布式光伏支架系统的身影在越来越多地方出现，成为备受青睐的太阳能支架系统解决方案之一。

Now let's discuss the problem of roof waterproofing in distributed solar

下面我们来探讨下分布式光伏里屋面防水的问题

The principle of roof waterproof treatment is generally to achieve the purpose of drainage through the guide channel, that is, to ensure that the node treatment can smoothly let the water flow out and ensure that the roof does not leak when the storm water is accumulated. For the case that the original roof must be damaged by drilling, it is necessary to adjust measures to local conditions and make different treatment according to different conditions. Let's analyze it in detail.

屋面防水处理的原则一般是通过导水槽达到排水的目的，即保证节点处理在暴雨积水时能顺利的让水泻掉而保障屋面不漏。对于必须打孔破坏原屋面的情况，则要做到因地制宜，根据不同情况做不同处理，下面我们来具体分析下。

Waterproofing of concrete flat roof solar mounting system（混凝土平屋面光伏支架系统防水）

For newly built buildings, bolts are usually embedded and roof waterproofing is done according to the conventional practice when designing buildings. For the buildings that have been built, when setting the solar module base, the waterproof layer should be laid on the upper part of the base and the metal embedded parts, and the sealing treatment should be done around the anchor bolts. The waterproof layer should be filled with waterproof sealant. In addition, an additional waterproof layer can be added under the base, so that even if there is leakage at the top of the base, the rain will not reach the structural layer.

对于新建造的建筑，通常在设计建筑的时候就按照常规做法，预埋螺栓，做好屋面防水。而对于已经建造完成的建筑，在设置太阳能组件基座时，防水层应铺设到基座和金属埋件的上部，并在地脚螺栓周围做密封处理，穿防水层处用防水密封胶填实，另外可以在基座下增设附加防水层，这样即使基座顶部发生渗漏，雨水也不会到达结构层。

Chemical anchor bolt solar mounting system waterproof（化学锚固螺栓光伏支架系统防水）

For existing buildings with concrete flat roof, if chemical anchor bolts are used to fix the mounting, the thickness of the protective layer or the surface layer used shall be confirmed first. For the prefabricated floor roof with large bearing capacity per unit area, a certain thickness of concrete layer can be cast in place on the roof, and the mounting can be fixed with chemical anchor bolts after curing.

对于混凝土平屋面的已有建筑，若使用化学锚固螺栓固定支架，应首先确认保护层或使用面层的厚度。对于单位面积承重较大的预制楼板屋面，可在屋面现浇一定厚度的混凝土层，固化后利用化学锚固螺栓固定支架。

For the sloping roof covered with tiles, confirm the drilling depth. After fixing the chemical anchor bolt, the position where the bolt passes through the tiles shall be well treated with waterproof sealant. The chemical anchor bolt has the advantages of large bearing capacity, fatigue resistance and aging resistance, and has no expansion force on the base and no extrusion stress. Therefore, it will not cause adverse impact on roof waterproofing.

对于上覆瓦片的坡屋面，应确认打孔深度，将化学锚固螺栓固定后，螺栓穿过瓦片的位置应使用防水密封胶做良好处理。化学锚固螺栓具有承载能力大，抗疲劳、耐老化等优势，对基体无膨胀力，不产生挤压应力，因此，不会对屋面防水造成不良影响。

Waterproofing of metal roof solar mounting system（金属屋面光伏支架系统防水）

For the metal roof, the steel structure of the solar system needs to penetrate the original waterproof layer and profiled steel plate and be fixed on the main steel structure of the building; Then, steam insulation, thermal insulation and waterproof treatment shall be carried out with reference to the waterproof method of metal roof. The key points of construction are rust removal, sealing, and waterproof coating on the base and periphery.

对于金属屋面来说，需要将光伏系统的钢结构穿透原防水层及压型钢板，固定在建筑的主体钢结构上;再参照金属屋面防水做法，进行隔汽、保温及防水处理。施工的重点是去锈蚀、密封、对基层及外围涂刷防水涂料。

Local leakage points of metal roof shall be sealed with high-quality neutral weatherproof sealant; The color steel plate with serious local corrosion needs to be replaced before installing the PV module.

对金属屋面的局部漏点，应采用优质中性耐候密封胶涂抹封堵;对于局部锈蚀严重的彩钢板，在安装光伏组件前需要更换。

Therefore, the installation design of solar mounting system should not only consider sunlight and shadow, but also pay attention to the details of load bearing, drainage and waterproof. Chiko has solved the problem of solar mounting system for users in more than 100 countries around the world, and has been to snow, mountains, lakes and farmland. If you don't know how to choose a suitable solar mounting solution, please contact us!

因此，光伏支架系统的安装设计不仅要考虑日照和阴影，承重、排水、防水等细节同样值得被关注。晨科已经为全球100多个国家的用户解决光伏支架系统难题，去过雪地，也去过高山，还有湖泊农田，如果你不知道如何选择一套合适的太阳能支架解决方案请联系我们！

Above news from CHIKO Sales & Marketing department

Add: No 680 Xingwen Rd. Jiading dist. Shanghai 201801 China

Email: Chiko@Chikolar.com

Website: http://www.chikolar.com  

Fax : +86 (21)59972938

Phone: +86(21) 59972267 59973712 59973713--811