Maintenance Guide for Metal Roof Panels

一. Daily Inspection
1. Regular Patrol Inspection：Inspect the panel surface for scratches, deformation, and paint film peeling every quarter. Check if the sealant at the lap joints is cracked or aged, and look for loose screws and aging gaskets.
2. Drainage System Inspection：Timely clean leaves, sludge, and other debris in gutters and downpipes to ensure smooth drainage and prevent water accumulation from corroding the panels.
二. Cleaning and Maintenance
1. Routine Cleaning：Use a mild neutral detergent with a soft-bristle brush or high-pressure water gun (do not use excessive pressure to avoid damaging the paint film) to clean dust and stains on the panel surface, then rinse thoroughly with clean water.
2. Special Stain Treatment：For stubborn stains such as oil stains and rust spots, use special metal cleaners. Avoid using corrosive agents such as strong acids and alkalis.
三. Damage Repair
1. Paint Film Repair：If the panel has minor scratches or paint film damage, touch up with the same type of repair paint in a timely manner to prevent rust spread; for large damaged areas, contact professionals for local panel replacement.
2. Sealant Replacement：When the sealant is cracked or ineffective, first remove the old sealant and residual impurities, then re-inject weather-resistant sealant to ensure the tightness of the lap joints.
3. Fastener Maintenance：If loose screws or aging gaskets are found, replace the gaskets and tighten the screws immediately. If necessary, replace them with corrosion-resistant stainless steel fasteners.
四. Anti-corrosion Protection
1. In areas with strong corrosive environments such as coastal regions and industrial zones, regularly spray anti-corrosion protective agents on the panel surface to extend service life.
2. Avoid stacking corrosive materials on the panel surface to prevent chemical corrosion of the paint film.
五. Precautions
1. Avoid directly stepping on the panels during maintenance. If stepping is necessary, lay wooden boards to distribute pressure and prevent panel deformation.
2. Avoid high-temperature operations such as welding on the panel surface to prevent high temperatures from damaging the paint film and panel material.