Find the Right Insulation for Your Home
When it comes to choosing insulation, it’s important to understand the different types available and how each performs. Foam board insulation is commonly used in homes, and selecting the right type can have a big impact on your home’s energy efficiency. Always On Green Home offers expert guidance to help you make the best choice for your needs.
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Types of Foam Board Insulation
There are three main types of foam board insulation used in residential construction, each with its own advantages and applications.
Expanded Polystyrene (EPS)
Made from Styrofoam beads, EPS foam board has gaps between the beads, allowing air and water to pass through. As a result, it provides less protection against moisture compared to other types.
Extruded Polystyrene (XPS)
This type of foam board is manufactured to create a continuous closed-cell structure, which offers excellent resistance to both air and water infiltration, making it more effective than EPS.
Polyisocyanurate (Polyiso)
The top-performing option, Polyiso foam board offers the best water resistance and thermal performance. With foil layers on both sides, it also provides the highest fire rating among the three options.
All three types can prevent air leakage when applied in thicknesses of 1.5 to 2 inches, but only XPS and Polyiso block water passage, reducing the risk of mold growth. For maximum effectiveness, all foam boards must be sealed along their edges to prevent air and moisture from seeping through. At Green Team LI, we exclusively use XPS and Polyiso for their superior water and air resistance.
Foam Board Insulation Applications
Foam board insulation is typically used in areas that require high resistance to water and air infiltration, such as:
- Roof insulation
- Under attic platforms
- Basement and crawlspaces
Its ability to block air and water passage makes foam board insulation an excellent choice for improving your home’s energy efficiency.
At Always On Green Home, we are committed to using high-performance insulation products to ensure your home remains comfortable and energy-efficient. Reach out to us today for expert advice and top-tier insulation installation.