What’s stronger than foam board?
Gatorboard is notably more durable and solid in its construction than foamboard, yet maintains its printable surface and relative light weight. Foamboard is generally a temporary signage solution but gatorboard can be used for two years or more with proper care. Gatorboard (or gator board) is a type of display board with a dense inner core made of foam and a rigid exterior made of wood-fiber veneer. This exterior is water resistant and will not easily break or warp.
What is the best type of foam board insulation?
The best kind of rigid foam insulation is polyisocyanurate, also known as polyiso. It has the highest R-rating of any rigid foam insulation and comes with a reflective foil on both sides, allowing it to act as a radiant barrier as well. Polyisocyanurate: Known as polyiso for short, polyisocyanurate foam has the highest R-value per inch (R-6. R-6. This type of rigid foam usually comes with a reflective foil facing on both sides, so it can also serve as a radiant barrier.Once again—you would expect the R-value of 18 for 3” thickness, but the actual R value for rigid insulation is R-18.Disadvantages of Polyiso The major disadvantage of polyiso is its R-value (5. This is due to pentane as the blowing agent.Polyiso is renowned for having the highest R-value per inch of all the rigid foam board options, which translates to excellent thermal efficiency that can significantly reduce heating and cooling costs. This high R-value means less material is needed to achieve the same level of insulation compared to EPS and XPS.
How thick is R30 foam insulation?
Fiberglass Batt Insulation: Typically, R30 fiberglass batts are about 8 to 9 inches thick. These pre-cut panels are easy to install and commonly used in attics and between wall studs. Spray Foam Insulation: R30 can be achieved with spray foam at a thickness of approximately 5 inches for closed-cell foam. Unlike the fiberglass insulation found in most homes’ stud walls, foam boards provide continuous protection from the elements. Thanks to their density, they typically also have higher R-values per inch.R-Value is a measure of insulation’s ability to resist heat flow. The higher the R-Value, the better the thermal performance of the insulation. The recommended level for most attics is to insulate to R-38 or about 10 to 14 inches, depending on insulation type.Closed-cell spray foam has a far better R-value per inch than other, less effective insulations like cellulose, fiberglass, or even open-cell foam. All these have R-values ranging from R-3. R-3. The R-value of closed-cell foam is R-6.Inch Fiberglass Insulation (R-7): Fiberglass insulation with a thickness of 2 inches typically offers an R-value of 7.