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Spray-Foam Insulation Basics

机译：喷涂泡沫绝缘基础

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摘要

Spray polyurethane foam (SPF) is made by mixing and reacting chemicals to create a foam. The materials react very quickly, expanding on contact to create foam that insulates, air seals, and provides a moisture barrier. SPF insulation is known to resist heat transfer extremely well, and it offers a highly effective solution for reducing unwanted air infiltration through cracks, seams, and joints.SPF insulation applied by professionals is generally described as a high-pressure foam or a low-pressure foam, and is available as open- or closed-cell foam. There are several major differences between the two types, leading to advantages and disadvantages for both, depending on the desired application requirements. A side-by-side comparison highlights some of the typical differences between closed- and open-cell foam.
机译：喷涂聚氨酯泡沫（SPF）是通过混合化学物质并使其产生泡沫而制成的。这些材料反应非常迅速，在接触时膨胀，形成泡沫，使泡沫绝缘，密封并提供防潮层。众所周知，SPF隔热材料能够很好地抵抗热传递，它提供了一种有效的解决方案，可减少通过裂缝，接缝和接缝产生的有害空气渗透。专业人士使用的SPF隔热材料通常被称为高压泡沫或低压泡沫。泡沫，有开孔或闭孔泡沫可供选择。两种类型之间有几个主要区别，这取决于所需的应用程序要求，导致两者都有优缺点。并排比较突出显示了闭孔和开孔泡沫之间的一些典型差异。

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