金属拱形屋面与传统结构的比较：
Comparison between metal arch roof and traditional structure:
一、跨度大（6-42M任意选择）无梁无檩、无支撑、空间开阔内部净空极佳。
1、 Large span (6-42m optional), no beam, no purlin, no support, open space, excellent internal clearance.
二、造价低廉、经济实惠、屋面集保温、隔热、通风、采光于一体、自成体系。
2、 Low cost, affordable, roof insulation, heat insulation, ventilation, lighting in one, self-contained system.
三、施工速度快，每万平方米屋面建筑可在20天左右完成。
3、 The construction speed is fast, and every 10000 square meters of roof construction can be completed in about 20 days.
四、重量轻、使用寿命长：彩色钢板自重轻非常适用楼房加层及旧房改造，使用周期50年。
4、 Light weight and long service life: color steel plate with light self
weight is very suitable for building storey adding and old building
reconstruction, with a service life of 50 years.
五、造型美观、色彩斑斓（十二色彩任意选择）、风格独特、新颖而有韵律，具有永久防水无漏效果。
5、 Beautiful shape, colorful (12 colors are optional), unique style,
novel and rhythmic, with permanent waterproof and no leakage effect.