People often tend to look at buildings, their house, and other structures as purely static objects – that is as if they are not moving. Yet when taking a closer look, at the molecular level, we know that they actually are moving. Not a lot, but still a little. Architectural materials are like living things in that they are made of molecules that are constantly bending, shifting, and flexing in response to seasonal temperature and loading changes. Though they are only shifting small distances of often ¼” or less, these minute movements are enough to cause roofing materials to separate, delaminate, deform, and create weaknesses in surfaces. As we know, certain materials have known lifespans, so these changes are typically inevitable and often unavoidable results of the inherent mechanical properties of materials. But still there are small steps we can take to best care for our roofs and increase longevity through responsible caretaking.