Common methods for ensuring a building is insulated include:
1. Adding insulation to the walls, floors, and ceilings
2. Installing weather stripping on doors and windows
3. Caulking around window frames and door frames
4. Using double-paned windows to reduce heat loss
5. Installing a radiant barrier in the attic to reflect heat
6. Using spray foam insulation
7. Upgrading to an energy-efficient HVAC system
8. Sealing air leaks around ducts and vents
9. Installing roof insulation
10. Using insulated concrete forms (ICFs) for the walls and foundation.
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