Fire-resistance requirements in local building codes often govern in determining the thickness and type of material used for curtain walls. 在各地建筑规范中,防火要求在确定幕墙厚度和材料类型上起着决定作用。
The UK Building Regulations permit ventilation fans to be eliminated if trickle ventilators and passive stack extract vents are provided. 英国建筑规范允许在设有细流通风设备和被动式的烟囱排烟道的情况下,通风机可以不设。