Last updated: October 2026

High-altitude sun, dry air, and hail are the main siding stressors in Colorado — UV exposure fades finishes, and hail can crack brittle panels. Across the 30 Colorado cities we track, an average of 29.5% of homes were built before 1980 (U.S. Census Bureau, ACS 2020–2024) with average annual rainfall of 15.9 in/yr (NOAA 1991–2020 normals).

City-by-city guides

• Siding in Arvada, CO — pop. 122,634
• Siding in Aurora, CO — pop. 394,432
• Siding in Boulder, CO — pop. 106,433
• Siding in Brighton, CO — pop. 42,059
• Siding in Broomfield, CO — pop. 76,304
• Siding in Castle Rock, CO — pop. 79,123
• Siding in Colorado Springs, CO — pop. 487,887
• Siding in Commerce City, CO — pop. 66,445
• Siding in Denver, CO — pop. 718,877
• Siding in Englewood, CO — pop. 34,129
• Siding in Erie, CO — pop. 33,808
• Siding in Evans, CO — pop. 22,396
• Siding in Firestone, CO — pop. 18,049
• Siding in Fort Collins, CO — pop. 170,229
• Siding in Fountain, CO — pop. 29,300
• Siding in Frederick, CO — pop. 16,651
• Siding in Golden, CO — pop. 20,417
• Siding in Greeley, CO — pop. 110,806
• Siding in Johnstown, CO — pop. 18,883
• Siding in Lafayette, CO — pop. 30,602
• Siding in Littleton, CO — pop. 44,710
• Siding in Lone Tree, CO — pop. 14,147
• Siding in Longmont, CO — pop. 99,406
• Siding in Louisville, CO — pop. 20,786
• Siding in Loveland, CO — pop. 78,410
• Siding in Parker, CO — pop. 61,783
• Siding in Thornton, CO — pop. 144,187
• Siding in Westminster, CO — pop. 115,484
• Siding in Wheat Ridge, CO — pop. 32,070
• Siding in Windsor, CO — pop. 37,914

How to use these guides

Each city page pairs siding how-it-works guidance — warning signs, the inspection process, materials, repair vs. replace — with that city's real housing-age and rainfall data, so you can see which pattern dominates locally. When you talk to contractors, ask how their plan accounts for the local weather, and whether they probed for rot before quoting a scope.