How to Achieve the Most Efficient Thermal Roof Insulation
We often get asked, ‘Can you make 5.2-inch thick polyiso?’ or ‘Can you make 8-inch ISO?’ Even if we could, there’s a good reason to use multiple, thinner layers of insulation. Whenever you need a layer of insulation, you actually need TWO layers of insulation! If a single layer of rigid foam insulation boards gets used, there’s a high risk of heat gain or loss at all of the joints between the boards. These areas are called...
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