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.
How Strong is the Fox Blocks 90° Corner?
We built a test wall 440 feet long x 9′-4″ tall with 24 turns, with no bracing or strapping, to test the 90 degree blocks with concrete.