Related Clues:

• They have a roof above them
• Roof edges
• Spots for house martin nests
• Downspout sites
• Chalet features
• One place to find icicles
• House overhangs
• House's overhangs
• Leaf-collection sites?
• Icicles may hang from them
• Gutter sites
• Start to drop?
• Roof components
• Some nest sites
• Ice dams may form in them