Easy Window and Siding Maintenance for Spokane Homes Fiber cement siding and modern windows are built to last. One of the biggest advantages of these materials is how little maintenance they require. Still, Spokane weather brings dust, wind, pollen, and moisture that slowly build up on exterior surfaces. Over time, that buildup can dull color, trap heat, and hold moisture against your siding. Window vents can also collect dust and insects that block proper drainage. The good news is that a small amount of yearly care keeps siding looking sharp and helps windows perform the way they should. Most of this work requires only simple tools and a gentle cleaning approach. Why Exterior Maintenance Still Matters Fiber cement siding is