You probably don't think much about where snow goes when it melts from on top of your roof, but it's a critical issue in home maintenance. Water is the great enemy of foundations, so you want to get it 5' to 6' away from your foundation. Splash blocks and downspout extensions can help manage this moisture, but only if they're present, in good condition, and not backed up with snow/ice. "Missing Downspout Extension or Splashblock" is a very common deficiency I see regularly in the homes I inspect. In the picture below, water is leaking out the back of the downspout extension, right next to the foundation.