Guides

• How SnowLoadCheck Calculates a Design Roof Snow Load — The exact ASCE 7-22 formula behind every county's psf figure, factor by factor, sourced to the code section that sets it.
• Why Some Counties Have No Snow Load Number — The difference between a Case Study area, where ASCE 7 itself declines to give a figure, and the handful of counties the map query simply missed.
• Fresh Snow, Packed Snow and Ice: Why the Same Weight Looks So Different — The density figures behind why a roof's design load translates to 44 inches of fresh powder but only 4 inches of solid ice.
• Snow Is Already on the Roof: What Actually Matters — What to check, and what to ignore, when there is real snow sitting on a real roof right now.
• Embed the SnowLoadCheck Snow Load Badge — A free, live roof-snow-load badge for any of the 3144 counties this site covers, one iframe, no sign-up, credited back to SnowLoadCheck.