The perfect installation for Warmup Ultralight Insulation Boards would be a tight and staggered seams. Instead of lining up the edges of the boards perfectly, it is extremely important to offset them a bit to provide a thermal break. A thermal break is a barrier that stops heat from moving easily between inside and outside. When you have a good thermal break, your insulation works better, which means your home stays warmer without needing to turn up the heat all the time.