In the prefabricated steel building system, there are many different types of trim and flashing. They are quite important for the decoration and water-proof application.
Commonly, they generally divided into following types according to the location.
1. Roofing system (ridge, eave seal and gutter)
Location: The highest point of the roof, where the two roof panels overlap.
Application: To prevent the roof from leaking
Location: The end of eave near the roof panel.
Role: 1. Hide the composite board core material;
2. Conducive to concentrated drainage
Gutter : used for rain drainage
2. Wall system (vertical edging, corner decoration, U-shaped channel, flashing , lap seam)
Vertical edging: used for decoration and water-proof
Corner decoration: interior & exterior corner cover for decoration
1. Ends cover of the small panel wall panel
2. Avoid corrosion where the composite board is in contact with the floor or the brick wall.
3. Fix wall panel for simple prefab house
Flashing: Location: brick wall and wall panel joints.
Location: Connection parts between two horizontal wall panel
Role: waterproof, decorative
3. Door and Window system
4. Others (ventilators, steel deck, special type sheet)
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