Community contributors: Lisa, may🇦🇺室内外装修, ZZZ
Summary
Key Points
Why it matters: 掌握外墙装饰构件的结构原理与修补技巧，能防止水汽渗入墙体并节省高昂的专业人工修补费用。
外墙泡沫石膏线若无衬板支撑且仅靠少量胶水粘贴，极易破损脱落。修补时需先用水泥板钉固洞口作为基底，再将定制的泡沫石膏条用防水硅胶打蛇形胶粘牢，并在上下边缘补打密封胶防渗水。若自行购买材料DIY修补，可省去高昂的人工费用并保证加固质量。
Practical Takeaway
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Disclaimer
This note is edited by APOA from community discussions with private details removed where possible. It is general information only and is not legal, tax, financial, or property management advice.