1. The side and end of the roll forming machine are overlapped. When installing each steel plate, it should be placed on the front steel plate accurately and clamped to the previous steel plate until both ends of the steel plate are fixed. A simple and effective method is to use a pair of jaw clamps to clamp the overlapped steel plates. When the steel plate is placed in the longitudinal direction, the end portion, especially the upper end portion, needs to be clamped with the gusset portion, so that one end of the steel plate can be seated, and the overlap at one end is also in the correct position, thereby fixing the steel plate. During the fixing process, the clamp should always clamp the steel plate in the longitudinal direction.
2. The fixing method of the installation of the roll forming machine has two types: the penetrating type and the concealed type. Penetration is the most common way to install roof and wall roll forming machine, that is, the self-tapping screws or rivets are used to fix the roll forming machines on the support members (such as the purlins), and the penetrating fixation is divided into wave-pin fixation, trough fixation or Their combination. Concealed concealed fixing is a method of fixing the special concealed buckle with the dark button type roll forming machine to the support member (such as the purlin), and the fixing method of the female rib of the roll forming machine and the central rib of the concealed button is generally used for the house. Panel installation.
3. In the design of large span and large-area workshops, in order to have sufficient brightness, lighting belts are often designed, usually arranged in the middle of each span. Although the setting of the lighting plate increases the degree of daylighting, it also increases the heat transfer of the sun and increases the temperature inside the building.
4. Selection of self-tapping screws. When the fixing screws are selected, the fixing parts should be selected according to the service life of the structure. The thickness of the purlins cannot exceed the self-drilling ability of the screws. Screws are currently available with a plastic head, stainless steel top cover or a special durable finish. In addition, except for the screws for fixing the buckles, the other screws are provided with waterproof gaskets, and corresponding special gaskets are provided for the lighting panels and under special wind pressure conditions.
5. The installation of roll forming machine is easier to master, and the handling of some details is more important. For the roof color board, the color board should be correspondingly closed at the roof and the eaves, in order to prevent rainwater from entering the roof more effectively.
6. In the southern color plate, it is generally designed as a single-layer color plate. In order to reduce the solar radiation heat into the interior of the building, when installing the roof panel, the insulation layer can be installed in the roofing system. There is a very simple, economical and effective way to apply a double-sided reflective foil film to the stringers or slats before installing the roofing steel. This method can also be used as a steam barrier to reduce agglomeration. If the film is allowed to sag between the supports by 50 to 75 mm, the air layer between the film and the roof panel will further enhance the heat insulation effect.
