A GBA reader named Bongo30 Bongo30 (we’ll call him Bongo) is trying to decide what type of water-resistant barrier (WRB) to install in a wall assembly that also will include exterior insulation, a vented rainscreen, and fiber-cement siding. Cost is turning out to be a pivotal issue.

“我们正在安装Hardie壁板，只是为Blueskin称为WRB，” Bongo写道这个最近的问答帖子指的是亨利的蓝调， 一个自加粘的空气和蒸气屏障。“安装蓝调的成本是安装的10倍HardiewRap。”

在他的2880平方英尺的两层楼房屋中安装蓝调金的引人注目的报价接近30,000美元。

邦戈（Bongo）报告说，他不住在水边，也不生活在受到大风大的地区。布鲁斯金的价格巨大值得吗？这就是这个问答焦点的主题。

额外的劳动可能是成本更高的因素

据Dan S.所说，蓝调金大约是HardiewRap的成本的四倍，因此价格差异更高的差异可能是通过增加劳动力的需要来解释的，或者对被认为是高级产品的加价。

“It’s probably a bit of both,” Dan writes, “since HardieWrap is stapled up like Tyvek (so very fast to install), and Blueskin is a fully adhered product, like a giant sticker (so has to be more carefully put up and rolled out). But Blueskin is also a higher performance product than HardieWrap (in terms of air-sealing), so maybe there is also some ‘luxury’ mark-up involved.”

丹补充说，他一年半前在自己的家中安装了布鲁斯金VP100。当时，材料成本比优质的prosoco便宜五倍…