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- Differences between styrofoam (expanded or extruded polystyrene) and polyurethane foam1234:
- Thermal insulation: Polyurethane has a higher thermal insulation factor than polystyrene.
- Cost and installation: Polyurethane is more costly and harder to install.
- Structural rigidity and noise reduction: Polyurethane bonds tightly to surfaces and adds to structural rigidity while reducing noise.
- Heat resistance: Polyurethane withstands higher temperatures without melting.
- Fire resistance: Polyurethane is a superior fire-retardant material.
- Physical strength: Polyurethane withstands physical attacks and stresses better.
- Load bearing and thermal control: Polyurethane performs better in these applications.
Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.For equivalent thicknesses, polyurethane has a higher thermal insulation factor (R‑16 or RSI: 2.8) than expanded or extruded polystyrene (Styrofoam). In addition, since polyurethane strongly adheres to door surfaces, it provides twice as much resistance to flexion as polystyrene in a comparable door.www.garaga.com/information/faq/polyurethane-vs-…Polyurethane foam is more costly and harder to install than polystyrene, but it offers significantly higher insulating values. Because it bonds tightly to the garage door, it can add considerably to its structural rigidity while reducing noise during operation and creating a tight air seal.www.ibpportland.com/blog/polystyrene-vs-polyuret…Polyurethane does not melt, unlike polystyrene. In fact, polyurethane will remain mostly undamaged by heat until temperatures reach 700 degrees, at which point the material begins to char. Polystyrene will melt at temperatures in the 200- to 300-degree range. Polyurethane makes a superior fire-retardant material.sciencing.com/difference-between-polystyrene-poly…Polyurethane foam withstands physical attacks and stresses better than polystyrene as well as performs better in load bearing and thermal control application. It is also a cost-effective solution which is one reason why polyurethane is the most specified insulation for cold storage applications.kpsglobal.com/blog/comparison-of-polystyrene-an… - People also ask
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