EERE »
BTO »
Building America »
Solution Center Home
» Existing Homes
» Step 3: Ensure Moisture Protection
Existing Homes - Step 3: Ensure Moisture Protection
The following categories provide details draining water from roofs, walls, windows, and foundations, to ensure dry assemblies before reducing drying potential from insulating and air sealing. Consult these guides before moving to Step 4 in this tool.
Click on the links below for detailed information about each topic in this step:
- Step and Kick-Out Flashing at Roof-Wall Intersections
- Gutters and Downspouts
- Flashing of Roof-Wall Intersections in Existing Homes
- Flashing of Penetrations in Existing Roofs
- Water Managed Roof – Re-roofing and Adding Insulation over a Flat Roof
- Water Managed Roof – Re-roofing and Adding Insulation Over a Sloped Roof
- Capillary Break at Crawlspace Floors - Polyethylene Lapped Up Walls and Piers or Secured in the Ground
- Final Grade Slopes Away from Foundation
- Patio Slabs, Porch Slabs, Walkways, and Driveways Slope Away from House
- Sump Pump Cover Gasket
- Footing Drain Pipe
- Drain or Sump Pump Installed in Basements or Crawlspaces
- Water Management of Existing Crawlspace Floor
- Water Management of Existing Basement Floor
- No Vapor Retarders on Interior Side of Air-Permeable Foundation Insulation
- Water-Resistant Flooring
- Cement Board Installed behind Tile and Panel Tub and Shower Enclosures
- Class I Vapor Retarders Not Installed in Above-Grade Walls in Warm-Humid Climate
- Building Materials with High Moisture Content Not Enclosed
- Whole-House Dehumidification
- Condensing HVAC has Corrosion-Resistant Condensate Drain Pan