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Aluminum material waterproof Roof Expansion Joint Covers

Short Description:

Ideal for roof applications

Suitable for 50-500mm joint gap


Product Detail

Product Tags

Ideal for roof to roof applications

Suitable for joint width 50-500mm

Featuring Neoprene weather washers that prevent leaking where fasteners penetrate frames/covers

Gasketed fasteners resist water and air passage

Surface mount system accommodates uneven expansion joint widths

Anodised Aluminum, sprayed Aluminum, Stainless steel plate and Brass plate can be chosen

Aluminum covers may be engineered to resist snow and wind loads

SR-WM (2)
SR-WM (1)
SR-WM (3)

Specification

exterior building aluminium roof expansion joint covers
Material Aluminum Alloy
Aluminum ASTM6063-T5
Type roof expansion joint covers
Thickness of Oxide film 8-12μm
Length 3 meter or cut to size
Certificate ISO9001-2008; SGS
Color Customized Color
MOQ 100m

Drawing

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Standard Dimensions

We can also customize based on your joint width.

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As the temperature changes, the upper structural components of the plant will expand and contract with heat, and the part of the plant buried underground is little affected by temperature, which restricts the expansion and contraction of the upper structural components and generates temperature stress. If the length and width of the factory building are too large, when the temperature changes, great temperature stress will be generated inside the structure. In severe cases, the wall, roof and other components may be cracked, affecting the normal use of the factory building and reducing the bearing capacity of the components. . Because the temperature stress in the plant structure is difficult to accurately calculate, the current method of setting expansion joint covers in a certain length along the longitudinal (horizontal) direction of the plant is adopted, and the plant structure is divided into several temperature sections to reduce the temperature stress. Ensure the plant Normal use.

The length of the temperature zone depends on factors such as the structure type, construction method, and the environment in which the structure is located. For fabricated bent structures, the maximum distance between expansion joints is 70m when it is exposed indoors or in the soil. For bent structures where the column height (from the top surface of the foundation) is less than 8m or the roof has no heat preservation or heat insulation measures, or is located in dry climate areas, hot summer and frequent rainstorms, or structures that are often under high temperature, The maximum distance between the expansion joint covers should be appropriately reduced.

When measures are taken to reduce the temperature change or shrinkage of the concrete, the space between the expansion joint cover can be appropriately increased. Such as strengthening roof thermal insulation measures to reduce structural temperature deformation; strengthening the weak links of the structure to improve its crack resistance; adopting reliable sliding measures to reduce the frictional resistance that restrains the deformation of the structure. The expansion joint cover should start from the top surface of the foundation, completely separate the upper structural members of the two temperature zones, and leave a certain width so that the upper structure can be freely deformed in the horizontal direction when the temperature changes.

The bent structure of a single-storey factory building has better adaptability to uneven settlement of the foundation, so settlement joints may not be provided in a general single-storey factory building. However, when the height difference between two adjacent parts of the plant is greater than 1Um, the crane lifting capacity between the two adjacent spans is very different, the bearing capacity of the foundation or the soil quality of the underlying layer is greatly different, or the construction time of each part of the plant is very different, resulting in soil compression In the case of different degrees, settlement joints should be considered. The settlement joint should completely separate the building from the roof to the foundation, so that the structures on both sides of the joint can settle freely without affecting each other. The settlement joint can also be used as an expansion joint cover, but the expansion joint cover cannot also be used as a settlement joint.

For a single-storey factory building located in an earthquake zone, when it is flat due to production technology or use requirements, the elevation is complicated, or the rigidity and height of the adjacent two parts of the structure differ greatly, and the auxiliary buildings (such as living It is necessary to install earthquake-proof joints to separate the two adjacent parts. The earthquake-proof joints shall be arranged along the full height of the factory building, walls or columns shall be arranged on both sides, and the foundation may not be provided with joints. In order to avoid collisions between the structures on both sides of the seismic joint during an earthquake, the seismic joint should have the necessary width. The width of the seismic joint is determined according to the seismic fortification intensity and the height of the lower house on both sides of the joint.


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