“Thermo Extra Blocks” introduced by JCP is a product with significantly better insulation properties compared to the thermo white blocks. It can eliminate the contribution of heat radiation on the overall thermal conductivity and it can provide you a comfortable indoor environment. The test results and comparisons have proven that which will save at least 60% on electricity consumption. Thermo-Extra is capable of resisting heat up to 30% higher than regular thermo blocks and 45% higher than cavity walls. It has 20% less heat bridging factor compared to regular thermo blocks and 30% less than cavity walls.