Nitin backing board enkawl nan hian thil awm dan azirin tailored measures a ngai a ni. Metal backing board-ah hian rust a awm leh awm loh enfiah fo tur a ni a, anti-rust paint (thla ruk danah a tha ber) hmanga enkawl tur a ni a, chu chuan oxidation avanga structural chhiatna a thlen loh nan. Thing backing board-te hian controlled humidity (40-60% RH atana rawt) a vawng reng tur a ni a, insect repellent hmanga enkawl tur a ni. I tihfai dawnin neutral detergent (pH 6-8) hmang la, a chunglam chu high-pressure water jets (recommended pressure) hmanga hrual loh tur a ni<50 bar) or hard brushes. Avoid impact loads exceeding the load-bearing limit (e.g., <500 kg/m² for steel). Replace immediately if deformation exceeds 3 mm/m.
