What is Type 2 EPS insulation?
InsulFoam II Below Grade is an engineered insulation consisting of a superior closed-cell, lightweight and resilient expanded polystyrene (EPS). InsulFoam II meets or exceeds the requirements of ASTM C578, Type II, Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation.
Is EPS good for insulation?
EPS is made of 98% trapped air and only 2% plastic, making it an efficient insulator with a small amount of raw material.
What is EPS insulation?
Expanded Polystyrene insulation (EPS) is manufactured using beads of foam within a mould, heat or steam is then applied directly to the beads which causes them to expand and fuse together. This process produces a closed cell structure, not a closed cell insulation board, due to voids that can occur between the beads.
What is the difference between Type 1 and Type 2 insulation?
Type 1 polystyrene insulation has a typical thermal resistance value or R3. 7/in., while Type 2 polystyrene insulation has a minimum thermal resistance value of R4. 0/in. Type 1 is moulded bead polystyrene.
Does EPS insulation absorb water?
A: EPS is non-hygroscopic and does not readily absorb moisture from the atmosphere. Its closed-cell structure reduces the absorption and/or migration of moisture into the insulation material.
Is EPS waterproof?
EPS is resistant to water and moisture. This means that it does not absorb them and that its insulating performance is not compromised when in contact with these elements. Insulation boards made of expanded polystyrene can make a home healthier because they will not contribute to mildew formation.
Which insulation board is best?
Polyurethane (PUR) is one of the most efficient insulation materials on the market. PUR is available in the shape of insulation boards or foam. However, the boards have a better insulation value than the foam variant. Moreover, these boards guarantee a certain thickness in advance and nothing has to be taped over.
How much does EPS cost?
The average cost of expanded polystyrene insulation is $0.26 /sq ft. for a 1-inch thick panel. The average R-Value is R- 3.6 to 4.2, depending on panel density.
What is the R-value of 2 rigid foam insulation?
With an R-value of 13.1 for a 2″ thick sheet only two 2″ sheets are required to achieve R-25. 2. Extruded polystyrene or XPS (foam is usually pink or blue) XPS has an R-value of 5 per inch of thickness requiring 5″ of insulation to achieve R-25.
What is the R-value for 2 rigid insulation?
At one inch thickness, EnerfoilTM achieves a 6.2 R-Value, or a 1.08 RSI….R-Value Chart for EnerfoilTM Rigid Foam Faced Insulation.
| Thickness (Inches) | R-value (in I-P/Imperial) | RSI (R-value in Metric) |
|---|---|---|
| 1.0 | 6.2 | 1.08 |
| 1.5 | 9.3 | 1.62 |
| 2.0 | 12.4 | 2.16 |
| 2.5 | 15.5 | 2.7 |
What are the mechanical properties of EPS insulation?
The most important mechanical property of EPS insulation and building products is its resistance to compressive stresses, which increase as the density becomes higher. EPS has a compressive resistance between 10 – 60 psi for most construction applications. Within that range EPS can be produced to meet specific strength requirements.
What is expanded polystyrene insulation?
Expanded Polystyrene insulation is a lightweight, rigid, closed cell insulation. EPS is available in several compressive strengths to withstand load and back-fill forces. This closed-cell structure provides minimal water absorption and low vapor permanence. Commonly used as insulation for walls, foundations and roofing,
What is the compressive strength of EPs?
Compressive Strength. EPS is a closed cell, lightweight and resilient, foamed plastic composed of hydrogen and carbon atoms. The mechanical strength of EPS varies with its density. The most important mechanical property of EPS insulation and building products is its resistance to compressive stresses, which increase as the density becomes higher.
What is EPS foam made of?
EPS foam is the correct term for any form of expanded polystyrene. Expanded Polystyrene insulation is a lightweight, rigid, closed cell insulation. EPS is available in several compressive strengths to withstand load and back-fill forces. This closed-cell structure provides minimal water absorption and low vapor permanence.