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Understanding the ENERGY STAR Rating System for Better Efficiency
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Decoding Net-Zero Homes: Understanding the Concept and How to Build
Is the Fox Blocks product rated by ‘Energy Star’?
Ener­gy Star does not eval­u­ate or rate insu­la­tion prod­ucts. Every Fox Blocks home when test­ed by an Ener­gy Rater, can meet and exceed the Ener­gy Star home stan­dards and achieve a 5 Star rat­ing and a HERS’ score well below the min­i­mum Ener­gy Star require­ment of 85, or in Cana­da, high­er than an Ener­Guide rat­ing of 80.
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ICF Tornado Safe Rooms or Shelters for Homes and Small Businesses
What is the R-Value?

The clear R‑Value of an Fox Blocks is R22, how­ev­er cur­rent Ener­gy codes rec­og­nize the lack of ther­mal bridg­ing in an ICF and the con­tri­bu­tion of the mass con­crete on the influ­ence of the ther­mal per­for­mance. Whole wall cal­cu­la­tions indi­cate a Fox blocks wall assem­bly pro­vides an R24 rat­ing.

The con­tin­u­ous dou­ble lay­er (inside and out­side) of insu­la­tion, the elim­i­na­tion of ther­mal bridg­ing and min­i­mal air infil­tra­tion through the mass con­crete wall assem­bly, allows Fox Blocks walls to per­for­mance in the high per­for­mance wall assem­bly cat­e­go­ry. Com­plet­ing the enve­lope with ener­gy effi­cient win­dows and doors and roof insu­la­tion, Fox Blocks homes can eas­i­ly meet and exceed ener­gy code require­ments and exceed the min­i­mum require­ments for Ener­gy Star and Ener­Guide. A Fox Blocks struc­ture requires 44% less ener­gy to heat and 32% less ener­gy to cool.

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Fox Blocks Accessories
Fox Blocks prod­ucts are com­ple­ment­ed by a full line of acces­sories to make your project’s con­struc­tion eas­i­er. From win­dow and door bucks to the only patent­ed ICF mason­ry anchor on the mar­ket, we have got you cov­ered.
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Why Fox Blocks ICF Safe Rooms Provide the Best Protection During Dangerous Wind Events
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Fox Blocks Compact
Fox Blocks Com­pact offers more eco­nom­i­cal ship­ping costs by deliv­er­ing flat. Ties can then be insert­ed eas­i­ly into the pan­els at the job­site. This com­pact prod­uct is designed to stack seam­less­ly with the tra­di­tion­al Fox Blocks line.