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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 ...
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Color Steel Composite Plate Various Plate Performance Introduction

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Color Steel Composite Plate Various Plate Performance Introduction



Galvanised sheet

(1) Color coated plate

The base plate is hot galvanized or aluminized zinc plate, there is also the use of electro-galvanized base plate, surface paint by bending does not fall off.

For composite plate with colour steel plate is generally two coating a baking (two coating a), and two coating two baking (two coating two) or there are quality problems such as loose edge serious, middle loose heart, leakage of coating, large serrated edge, serious oval, uneven and so on can not be used for the production of composite plate.

(2) Galvanised sheet

Bad bonding effect is sometimes not very good and needs to be dealt with.

(3) Stainless steel plate

Good corrosion resistance, toughness is difficult to process; bonding effect is sometimes not good, need to deal with.

(4) Aluminium foil

Reinforced aluminium foil is a composite material with glass fibre reinforcement between aluminium foil and kraft paper, with functional characteristics such as fire retardant, fireproof, etc. It is also beautiful, durable and ideal for a new generation of heat insulation, thermal insulation and sound insulation.

(5) PVC

The main raw material of PVC foam board is polyvinyl chloride (PVC), which is characterised by a flat and beautiful surface, light weight, flame retardant, moisture resistant, sound insulation, corrosion resistant, easy to cut, good weather resistance, acid and alkali resistant and easy to clean.

(6) Trilaminate

Due to the limited length of each plywood, the compactness is not very good and the cracking phenomenon is difficult to solve.

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Structural Steel Bolting Balls: Connecting the Future, Securing the Cornerstone

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