How is the roof of the steel structure closed?

Answer:

Light steel construction edge refers to the joint of two colored plates or the edge of the colored plate, through some treatment, play the role of decoration and waterproof. It is only a small part of the project cost, and is often neglected, but it plays a key role in the overall effect of the building. Some foreign companies than domestic products with competitiveness is mainly in the envelope, and the biggest difference is in the aspects of retaining edge, so the improved edge system is very important to improve our level of light step.

It is usually made with a plate 1 meters wide, depending on the length of the field. Press three knives, the first side is advisable 80mm, the second side takes 420mm, the third side takes 420mm, the fourth side takes 80mm, and the total length is 1 meters. The first angle is 120 degrees, and the second angles should be calculated according to the slope of the roof, that is, when the roof is mounted, the second side slope is the roof slope, and the third angles are the same as the first corner.

Light steel construction usually need to do edge has the following parts: roof, wall, cornice, corner, wall, door, window, Hupon, and parts of the edge ventilation and lighting. If there is a parapet gable and eaves gutter, then the practice will vary.Before the company's approach to the roof is to use a cover plate to cover both sides of the roof, this approach has the following shortcomings:1) fold the edge of the roof at the site of the need to cut the gap in the field, the construction speed is slow, the quality is not easy to prove;2) the edge plate and the roof plate do not have a reliable connection surface, the connection is not firm, and the utility model is usually connected by an aluminum pulling nail, and is easy to disengage;3) in theory, it relies on the turning at the bottom of the ridge to play the role of expansion, but in fact, it can make the stretching force of the bend long cut the fixed aluminum rivet, so it can not get the telescopic effect at all;