Constructing energy-efficient high-performance homes and buildings is necessary to reduce global CO2 emissions and mitigate climate change. Building codes should therefore mandate the healthiest, most energy-efficient and most structurally sound insulation systems for commercial and residential construction. Continuous Wall Insulation (CWI), examined in this report, is a cost-effective solution that provides strong resistance to thermal air flow and moisture infiltration while supplementing structural integrity.
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- CWI can significantly reduce the energy demand of home heating and cooling systems. Polyiso CWI creates an uninterrupted barrier that reduces thermal bridges by providing a continuous layer of insulation over the entire wall surface, which increases the energy efficiency of a home.
- Not only does polyiso deliver a high R-value per inch compared to other types of continuous insulation, but it also adds structural stability, creating a more durable wall. Laminating polyiso to structural materials increases the dimensional integrity of the wall.
- Adding CWI to cavity insulation protects interiors and wall cavities from condensation and keeps moisture from entering the house, reducing the risk of rot and rust. CWI is also a secondary line of defense against rainwater intrusion.