Some structural changes make economic sense only when a building is being renovated. Others make sense at any time. Simple changes you can make include:
Plug leaks with weatherstripping and caulking
- Reduce uncontrolled exchange of inside air through cracks around windows,
doors, utility switches, outlets, and other areas.
- Make building environments less drafty or clammy, which can make heating
or cooling a building less expensive.
Control direct sun through windows
- Install awnings, films, solar screens, automatic blinds, or trees to block heat
from the sun during the summer.
- Allow free solar heating through windows and skylights during
Upgrade roofing and insulation
- Add roof insulation, specifically in buildings with attics – one of the most
cost-effective savings measures available.
- Block some of the sun’s radiant heat by installing radiant barriers.
- Install adequate ventilation, which is key to removing hot air from the attic
- Consider installing electric or solar-powered roof ventilators.
- Use rigid insulation on the exterior for flat roofs.
- Investigate “cool roof” and “living roof” technologies for additional savings.