今天有時間查了下建房手策細節，siding 名字是hardie board. 但是
我去查了一下AI，原來hardie board 就是fiber cement. :)
Hardie Board (fiber cement) siding is a highly durable, fire-resistant, and low-maintenance exterior cladding made from cement, sand, and wood fibers. It typically lasts 50+ years, resistin
