Req 4c — Sustainable Housing

Sustainability Starts at Home

Your home is probably the single biggest consumer of energy and water in your daily life. How it was built, what materials were used, how it is heated and cooled, and how efficiently it uses water all affect its sustainability. This requirement asks you to identify key sustainability factors and honestly evaluate how your home measures up.

Key Sustainability Factors in Housing

Here are important factors to consider. Choose at least five to evaluate your home:

1. Energy Efficiency

How well does your home hold in heat during winter and keep cool during summer? Key elements include:

• Insulation — Walls, attic, and floors should be well-insulated to reduce heating and cooling energy
• Windows — Double-pane or triple-pane windows prevent heat loss far better than single-pane
• Sealing — Gaps around doors, windows, and pipes let conditioned air escape
• HVAC system age — Newer systems are significantly more efficient than systems installed 15–20 years ago

2. Water Conservation

How efficiently does your home use water?

• Low-flow fixtures — Showerheads, faucets, and toilets that use less water per use
• Leak-free plumbing — No dripping faucets or running toilets
• Efficient landscaping — Drought-tolerant plants or efficient irrigation systems
• Rainwater collection — Barrels or cisterns that capture rain for garden use

3. Renewable Energy

Does your home use any renewable energy sources?

• Solar panels — Rooftop solar can offset or eliminate electricity from fossil fuels
• Green energy plans — Some utilities offer plans where your electricity comes from wind or solar farms
• Solar water heating — Using the sun to heat water instead of gas or electricity

4. Building Materials

What is your home made of, and how sustainable are those materials?

• Locally sourced materials — Materials from nearby reduce transportation emissions
• Recycled content — Some building materials use recycled steel, glass, or plastic
• Sustainable wood — FSC-certified lumber comes from responsibly managed forests
• Durability — Materials that last longer mean fewer replacements and less waste

5. Waste Management

How does your home handle waste?

• Recycling — Does your household actively recycle paper, plastic, glass, and metal?
• Composting — Do you compost food scraps and yard waste?
• Reduction — Does your household try to reduce waste in the first place (buying in bulk, avoiding single-use items)?

6. Indoor Air Quality

How healthy is the air inside your home?

• Ventilation — Proper airflow prevents buildup of indoor pollutants
• Low-VOC products — Paints, cleaners, and building materials that do not off-gas harmful chemicals
• Natural light — Good natural lighting reduces the need for artificial lighting and improves well-being

7. Location and Transportation

Where your home is located affects its sustainability footprint:

• Proximity to work, school, and shopping — Shorter commutes mean less fuel burned
• Walkability — Can you walk or bike to daily destinations?
• Public transit access — Nearby bus or train stops reduce car dependence

Rating Your Home

Create a simple scorecard to rate your home. For each factor, assign a rating:

• Strong — Your home performs well in this area
• Average — Some sustainable features, but room for improvement
• Needs Work — Significant opportunities for improvement

Be honest in your assessment — the goal is not a perfect score but an understanding of where your home stands and what could be improved.