The roof i mainly made of 50 mm thick sandwich panel, and the length of the roof panel depends on the engineering needs and transportation requirements. The installation shall be connected with snap fastener and fixed on purlin with self tapping screw.
The profiled steel plate installed shall be tightly overlapped. The roof panel ripple shall be vertical to the ridge axis. A straight line shall be pre placed with measuring instrument to determine the alignment of the overall plate.
In large-scale construction projects, in order to shorten the time, bundles of roof panels can be hoisted directly from the truck to the roof frame by crane. For longer panels, it is recommended to use the method of carrying pole and lifting rope. For
small and medium-sized projects, unloading can be done by hand, then the single roof panel can be tied with ropes, and then the roof panel can be pulled onto the roof frame by manpower, and then fixed and installed. The project adopts manual handling
In order to protect the surface of profiled steel plate on the roof panel and ensure the safety of construction personnel, dry and clean gloves must be used to touch the profiled steel plate on the roof panel surface. Do not drag the
profiled steel plate on the rough surface or the profiled steel plate on the roof panel surface, and other things such as tools cannot drag on the profiled steel plate surface on the roof panel surface.
When walking along the roof panel longitudinally,
walk in its groove. When walking along the roof panel transversely, try to be close to or step on the roof support point. Generally, the load should be evenly distributed on the sole of the foot, not on the heel or toe. Wear soft soled flat shoes instead
of striped groove soled shoes, which are easy to embed small stones. The surface of profiled steel plate on the roof panel just removed is greasy. Be very careful when you act. It is inevitable to cut profiled steel plate on the surface of roof panel
at the construction site, but attention should be paid to protect other plates, because the cutting of electric saw will produce metal particles. If it is necessary to cut it on the profiled steel plate on the surface of other roof panels, a protective
object shall be placed between the profiled steel plate on the surface of the cut roof panel and the profiled steel plate on the surface of the lower roof panel, and the profiled steel plate on the surface of the roof panel shall face down. At the same
time, it is better to put a metal cutting knife in the electric saw. Compared with diamond wheel cutting, this method can produce less metal particles, and the incision is smooth.
In general roof and flashing installation, self tapping bolts, drilling
holes, hand saws, chainsaws, or other operations will leave metal debris on the adjacent areas of the roof. These debris and other sundries (rivets, nails, screw lights, etc.) must be removed from the roof, flashing, gutters, etc. as soon as possible.
Make this work the end of the day. Especially after the whole roof is installed, it can not be exempted. Neglecting this work will oxidize the metal debris and lead to the formation of stains on the surface. When the articles based on iron, copper, lead
and so on contact with the surface of the aluminum zinc plate, and are exposed to moisture or condensed water together, it will cause the damage of the aluminum zinc coating, and lead to the corrosion of the steel plate from the surface.
profiled steel plate on the roof panel surface is hoisted to the surface for installation, please make sure that all the profiled steel plates on the roof panel surface face up, and all the lap edges face the roof to be installed. Otherwise, it will not
only flip the profiled steel plate on the surface of the roof panel, but also turn the profiled steel plate on the surface of the roof panel. The bundle of profiled steel plates on the surface of roof panel shall be placed close to or on the purlin support
point, but not in the purlin span. Before fixing the first plate, ensure its position is vertical and square, and correctly place it on the position related to other building components.
When the first roof panel surface profiled steel plate is
fixed in place, a continuous alignment shall be drawn at the lower end of the roof. This line and the first roof panel surface profiled steel plate will become the conductor, which is convenient for the quick installation and correction of the subsequent
roof panel surface profiled steel plate. Then find out that each roof area needs to be tested in a certain section during installation. The method is to measure the width of the profiled steel plate on the surface of the fixed roof panel once at the top
and bottom respectively to ensure that there is no movement and sector. In some stages, such as half installation, the distance from the top and bottom of the profiled steel sheet on the surface of the fixed roof panel to the far side of the roof or the
finished line shall be measured to ensure that the profiled steel sheet on the surface of the fixed roof panel is parallel to the finished line. If you need to adjust, you can place and fix each plate in the future and make sector adjustment slightly.
Until the profiled steel plate on the surface of roof slab reaches flatness. According to the construction drawings, the roof panels of grid structure shall be stacked on the material stacking yard in a complete set, and the complete roof panels of grid
structure shall be hoisted to the design position and fixed along with the hoisting.