Sustainable Building Tools
Free calculators and planning tools for DIY eco homes, including insulation R-values, solar sizing, climate zones, and wall assemblies.
- R-Value Insulation Calculator — Live
Estimate nominal and effective wall R-values with thermal bridging, continuous insulation, climate-zone targets, and rough material costs. - Solar System Sizing Calculator — Planned
Plan preliminary solar array, battery, and inverter sizes from household loads, autonomy goals, and off-grid design assumptions. - Building Climate Zone Lookup — Planned
Look up building climate-zone guidance and the insulation, moisture, and mechanical-system priorities that change by region. - Wall Assembly Builder — Planned
Compare wall assembly layers, insulation approaches, thermal breaks, and moisture-control notes before committing to a build detail.