🏠 屋顶材料计算器Roofing Calculator

使用说明与常见问题How-to & FAQ

「屋顶材料计算器」是什么？What is the Roofing Calculator tool?

根据房屋长宽、屋顶坡度和挑檐估算屋顶面积、屋面“方”（100 平方英尺）数和沥青瓦捆数。Estimate roof area, roofing squares (100 sq ft) and shingle bundles from house size, pitch and overhang.

如何使用「屋顶材料计算器」？How do I use the Roofing Calculator tool?

在「屋顶材料计算器」中，填写「房屋长度(英尺)」、「房屋宽度(英尺)」、「坡度(每12英寸升高)」、「挑檐(英尺)」、「损耗%」等参数，结果会随输入实时计算并显示在下方。In the Roofing Calculator: Fill in "House length (ft)", "House width (ft)", "Pitch (rise per 12 in)", "Overhang (ft)", "Waste %"; results are recalculated instantly as you type.

什么是屋面“方”？What is a roofing square?

一“方”（square）指 100 平方英尺的屋面，美国屋面材料通常按方计价；常见三片式沥青瓦每方 3 捆。A square is 100 sq ft of roof; US roofing is priced per square, and common 3-tab shingles come 3 bundles per square.

坡度系数怎么算？How is the pitch multiplier calculated?

坡度为每水平 12 英寸升高 x 英寸时，系数 = √(1 + (x/12)²)，屋顶面积 = 投影面积 × 系数。For a rise of x inches per 12 inches of run the multiplier is √(1 + (x/12)²); roof area = footprint × multiplier.

「屋顶材料计算器」免费吗？需要注册吗？Is the Roofing Calculator free? Do I need an account?

「屋顶材料计算器」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Roofing Calculator is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.