For static loads 3 1 is suggested.
Dow extruded polystyrene foam board insulation.
Styrofoam brand scoreboard insulation is an extruded polystyrene foam insulation board that is easy to cut to commonly used widths.
Has excellent insulating characteristics high resistance to water and water vapor exceptional compressive strength and long term durability.
Styrofoam brand foam by dow typically referred to as blue board is the best known extruded polystyrene insulation on the market today.
For dynamic loads 10 1 is suggested.
3 based on 1 25 mm thickness.
Shop dow r 10 common.
It is especially recommended for exterior cavity walls and foundations.
Blue board can be used both on exterior and interior walls to give you a continuous insulation barrier that can increase effective r value of the wall by up to 20.
Foamular 250 product data sheet pdf v 1593673075000 1 45 mb.
Manufactured by dow chemical styrofoam brand foam is available in a variety of thicknesses in both 24 x 96 and 48 x 96 dimensions.
Owens corning foamular 250 extruded polystyrene xps rigid foam insulation is a closed cell highly moisture resistant rigid foam board well suited to meet the needs for a wide variety of residential and commercial construction applications.
Thermosetting resins from dow can be used as an alternative to traditional formaldehyde based resins for binding mineral fibers in the production of insulation blanket products that go into building insulation systems and specialty insulation.
Owens corning foamular 250 extruded polystyrene xps insulation is a closed cell moisture resistant rigid foam board well suited to meet the needs for a wide variety of building applications.
Since styrofoam brand extruded polystyrene foam insulations are visco elastic materials adequate design safety factors should be used to prevent long term creep and fatigue deformation.
2 in x 4 ft x 8 ft.