Ten Most Common Mistakes

1. Alteration of Finished Grades

2. Concrete Patio Poured Too High

3. Deck Trellis, Sunscreen or Lanai Structure Attached Improperly

4. Irrigation Sprinkler Heads Spray Against the House

5. Bathroom and Laundry Vent Fans Disconnected or Unused

6. Walking on the Roof

8. Storage of Household Goods on the Garage and Attic Trusses

9. Tinting of Dual Pane Windows

10. Floor System Overloaded

Additional Problems

• Hanging a ceiling fan from a light fixture box
• Placing plastic deflectors over furnace vents
• Cracking fireplace linings
• Placing rugs or non-breathable coverings over wood and synthetic decks
• Security alarm installations / penetration of windows and walls
• Nailing fences to house walls

* As described in the California Building Performance Guidelines for Residential Construction and Homeowner Maintenance Guide.