发布时间:2025-02-07 14:28:13
【答案】:C
《建筑装饰装修工程质量验收标准》(GB 50210—2018)条文说明第6.4.4条规定,塑料门窗的线性膨胀系数较大,由于温度升降易引起门窗变形或在门窗框与墙体间出现裂缝,为了防止上述现象,特规定塑料门窗框与墙体间缝隙应采用伸缩性能较好的闭孔弹性材料填嵌,并用密封胶密封。采用闭孔材料则是为了防止材料吸水导致连接件锈蚀,影响安装强度。
我家农村想在院里搭建个彩钢棚南北方向南面是墙棚子长度18米宽六米想求助帮我预算一下用几
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