Is EPS the same as XPS?
No, these insulation products are quite different. EPS is closed cell expanded polystyrene, while XPS is a closed cell extruded polystyrene. The properties, applications and costs of each are quite different. The majority of ICFs are manufactured with EPS.

Fox Blocks Wins Big at the 2020 ICF Builder Awards

Designing Homes for Aging in Place
Fortunately, with the growing popularity of sustainable and accessible design, it’s easier than ever to help clients create a space that will meet their changing needs over the years. Consider these options for clients who want to plan for the future while ensuring style, comfort and functionality for today.
How are Fox Blocks green/environmentally friendly?
Fox Blocks contain a minimum of 40% recycled content by weight.
- Fox Blocks do not off-gas and are not manufactured using any gases that deplete the ozone or are harmful to the environment.
- Fox Blocks require low embodied energy to manufacture.
- Fox Blocks do not contain any materials, that promote mold or mildew growth.
- Fox Blocks are an efficient construction method thereby reducing the amount of construction waste, dust and air pollution in the building process.
- Building with Fox Blocks will save on heating and cooling costs because less air is exchanged between the outside and inside of your home. This also means a smaller more efficient HVAC unit is required for the home.
- Fox Blocks are sustainable. They will not rot or deteriorate for the life of your home.
- Fox Blocks provide a secure, durable, comfortable, long lasting building


