Pinterest Facebook Twitter Email Sealing Penetrations 02:18 Properly sealing building penetrations can prevent drafts, mold and rot. Similar Topics: Flashing Healthy Home and Home Safety Mold Related Videos HGTV Dream Home 2011: Sealing the Windows 02:58 We Recommend Which Countertops Have to Be Sealed? Basement Floor Epoxy and Sealer Air Sealing and Insulation for Maximum Efficiency 12 Photos Sealing Basement Walls and Floors Waterproofing a Bathroom Sealers, Paints and Stains 101 for Concrete Patios