Key Technology of Vertical Aligned Sandwich Panels
1. In the combination of structural waterproofi ng and sealing waterproofi ng, the pre-applied sealant works as the first-layer of waterproofing; the interference-fi t fi ller works to prevent moisture and heat conduction. The innovative design of butt joints locations effectively ensures waterproof performance and thermal insulation performance. The decorative fascia is specially designed on the outer side for moisture prevention indoors. The structural waterproof can also enable discharge under the action of gravity, in the environment without pressure difference (consistent pressure inside and outside water droplet).

2. Solution of Sandwich Panel Wall Canopy

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The canopy roof is made of whole panels, horizontally aligned without lap joint, which can divert the accumulated rainwater to both sides for discharge.
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The fl ashing part at the joint of the canopy roof and the exterior wall panel is located at the joint plug of the two exterior wall panels and covered with sealant to effectively prevent rainwater leakage.
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The canopy bottom panel is designed as a secret fastened decorative panel without screws on the surface.
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The special design of integral trims enhances the overall aesthetic effect of the building.
3.Solutions for Corner Panel, Curved Panel and Special-Shaped Panel
Manufacturing and installation of integral corner panels are the outstanding features of Duowei sandwich wall panel system. Duowei integral corner panel is cut and bent by using special equipment and prefabricated in the factory. It is characterized by quick installation and tight joint. L-shaped, U-shaped, and curved panels at any angle according to the architectural design requirements.




4.Subject to the design calculation, the sandwich panels in the no-purlin system are directly fixed to the structural columns with special accessories, to reduce the number of structural sub frame and present a clean and tidy effect without excessive purlins indoors. Pre-applied sealant: Pre-applied sealant at the tongue and groove joint can further strengthen the overall waterproof performance of the wall surface, and is applied as another measure against deformation from thermal expansion and cold shrinkage of sandwich panels.
5.Nuique Tonngue and Groove Structure
* Rigid waterproof profile tongue and groove, preventing reverse osmosis of rainwater.
* Polyurethane side-sealing technology greatly enhancing the integrated bearing caacity of steel plate and ensuring the overall strength of tongue and groove.
* Special tongue and groove structure, ensuring the reliable wind-resistant performance of cladding under strong wind.
* With common-length buiid-in connection for plate edge, ensuring the firm connection.Concealed tapping screw, ensuring aesthetic property of wall surface and prevent head corrosion.
The metal curtain wall sandwich panel system is a multifunctional sandwich panel independently developed by DUOWEI that can meet various needs.

