Hometime - Weatherization & Insulation (Hometime, Inc.) (1992) How to: Install interior and exterior window insulator kits. Reglaze window panes. Weatherstrip windows and doors. Replace old window sash with new sash and vinyl jamb liners. Install combination storm windows. Prevent leaks by caulking gaps and cracks. Insulate walls and ceilings with fiberglass batts. Install vapor barriers. Find and seal up by-passes prior to installing attic installation. Ventilate a roof for maximum insulating efficiency by installing soffit vents, roof vents, and baffles. Insulate an attic.