如何在地下室最好地使用polyiso绝缘材料?
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如何在地下室最好地使用polyiso绝缘材料?
Iain Matheson
Jan. 24, 2020Last updated: Sept. 9, 2020
Polyiso foam board : fiber faced (white) (IKO Therm 3) or the older product, Organic faced (gray) polyiso. Both products have visible 2mm (+/-) holes in both sides of the facing material;
My Question regarding Polyiso (moisture and thermo) performance:
Central, Vancouver island, Canada.
总高度8 '以下(2 '以上，6 '以下)。Polyiso紧密对接，但不粘带和直接接触/支撑，在8英寸厚的混凝土基础墙内，通过2x4螺柱框架，(底板N0T与混凝土地板直接接触，但iso是)螺柱隔间适当填充Roxul/岩棉保温材料，无聚蒸汽屏障和½“石膏干墙，用干墙密封剂密封，并涂上蒸汽屏障涂料。
What problems do you see with this detail? Thank you
Polyiso rigid board insulation is a great product, but it does have its limitations. It is more expensive than EPS rigid insulation, but it does have a higher R value.
A downside of polyiso is that the performance starts to drop as the temperature drops, so we don’t love it as an option as the exterior surface of insulation in a cold climate. But Vancouver Island is a fairly warm climate relatively speaking, so I wouldn’t be as concerned there about the loss of performance during cold weather. You can read more about that performance drop and other rigid insulation panels here –
Rigid insulation panels: which ones are best for different applications
EPS或岩棉通常是我们首选的地下室产品，因为它们在接触湿气时具有弹性，而Polyiso在接触湿气时可能会受到负面影响，地下室经常有大量水分渗入或大量水分渗入。
最让我担心的部分，在你提出的墙内组装，是虽然螺柱墙不会接触到混凝土(这是一件好事)，多iso面板将是，所以他们可能暴露于从混凝土的水分，或吸收散装水。如果你选择polyiso，我建议把底部粘起来，防止水分渗入。
是什么让你选择了多面体，是更高的R值吗?你考虑过EPS面板吗?