Waterproofing Measures For The Roof Of Light Steel Structure Factory Buildings

Roof leakage is a common quality problem in construction engineering and has not been well solved for many years. Currently, both rigid and flexible waterproofing methods are commonly used. Rigid waterproofing is prone to cracking and water seepage due to temperature difference and strain; Flexible waterproofing, and most of them are organic materials such as asphalt and felt, which are prone to aging and have a short lifespan. In recent years, although various new waterproof materials have emerged one after another. However, due to high prices, lack of construction experience, and the need for further testing of durability, among other reasons. Therefore, currently it is still mainly using cheaper materials.

Most steel structure engineering projects have varying degrees of water leakage, mainly concentrated in the overlapping and internal areas of the compression plate interface the connection between the eaves gutter on both sides of the gutter and the wall, etc. This not only affects the collection of project funds, but also affects the company's brand reputation, and becoming a steel structure company is a hidden danger. One of the reasons for this is due to non-standard operations during construction, on the other hand, the phenomenon of water leakage is also closely related to the performance and climate change of the steel structure roof itself, because the steel material itself. The coefficient of thermal expansion and contraction of the body is large, and combined with external forces such as wind and snow loads, ordinary sealing materials (such as silicone) will solidification cannot adapt to the thermal expansion and contraction of the roof, so after about a year of climate change, delamination will occur.  Causing water leakage, unable to achieve long-term waterproof effect, often leading to the phenomenon of "annual repair", which brings benefits to both parties of cooperation
A great deal of unhappiness. The rapid development of the steel structure industry has driven the birth of many new materials, such as butyl waterproofing and sealing the widespread use of sealing tape, butyl waterproof sealant, and polyurethane sealant strips ensures the steel structure roof engineering from the source the waterproof quality.

As a construction enterprise of steel structure factory buildings, in order to minimize the occurrence of the above problems and fundamentally solve them, suggestions for improvement in the following areas:

1. From the selection of color board materials: Based on the local rainfall and roof load, it is recommended to use them reasonably during the drawing review roof panel type and color plate thickness.

According to the slope of the roof, bite free nail boards and high slope boards should be selected as much as possible, and the thickness of the color board should be verified by the design unit. Due to manufacturing, the reason for the price is that Party A chooses low wave roof panels or the thickness of the panels is too thin. When reviewing the drawings, Party A should be advised to change the original design before signing the contract there is a board type and measures such as increasing the slope are taken to compensate for the potential water leakage.

2. The verticality and levelness of steel structures, and the control of roof beam deflection. After the installation of the steel structure main body is completed, it is necessary to deal with the steel beams the levelness and deflection of the beam should be measured, and for structures that exceed the tolerance, a cushion plate or Z-shaped steel keel should be added to the beam for measurement. After leveling, the installation of the color board can be carried out. For steel structure projects installed by external units, if problems are found during measurement, supervision should be carried out. After rectification, proceed with the installation of the enclosure structure and keep records.