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How to Fix and Prevent Roof Leakage in Light Steel Structures

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Roof leakage is one of the most common problems in light steel workshops and warehouses. It not only affects daily use but also causes internal corrosion, shortens the building’s service life, and leads to higher maintenance costs. Most leakage happens at panel joints, screw holes, flashing areas, or around openings. The main reasons are poor waterproof treatment, aging sealant, loose screws, or improper installation. To fix existing leaks, first clean the surface and locate the leakage points. Replace damaged or aging sealing strips. Re-tighten loose screws or replace them with waterproof self-drilling screws. Apply professional waterproof sealant at joints and openings. For serious cases, add a layer of waterproof coating to improve protection. To prevent future leakage, use high-quality roof panels and waterproof materials from the beginning. Ensure professional installation with standard flashing and sealing design. Conduct regular inspections, especially before rainy seasons, and ...

Chessboard-shaped quadrangular pyramid grid

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  Structural features: The spatial stiffness is smaller than that of the square pyramid grid , and the internal force of the lower chord increases. When the perimeter is arranged into a full cone, the stiffness is better. This grid has a short upper chord under compression and a long lower chord under tension, which can give full play to the role of the cross section of the rod and bear reasonable force.   Applicable conditions: Applicable to peripheral support grids with a rectangular plane shape, a side length ratio greater than 1.5, and small and medium spans.