“We’ve already had our first snowfall!” is what many people are declaring – some with excitement, and others with disbelief. Â This cold weather change means we will soon be changing our thermostats to HEAT. Â If you have already done so you might have air penetration and air loss. Â Don’t fear, there are solutions! Â Chances are may need to have your windows re-caulked with a NuFlex sealant and gaps, cracks & crevices sealed with an UltraSeal foam.