Create precise external window shades that block summer heat while welcoming winter warmth.
Input your latitude and window orientation to calculate sun angles specific to your location.
Specify your window dimensions and distance to where the shade will be mounted.
Choose how much summer sun you want to block while maximizing winter sunlight.
Receive precise measurements for your custom window shade with a visual diagram.
Reduce cooling costs in summer and heating costs in winter by controlling solar gain throughout the year.
Eliminate hot spots and glare while maintaining natural light and views to improve your living space.
Reduce your carbon footprint by using passive solar principles instead of active heating and cooling.
Get precise measurements and simple instructions to create your own custom window shades as a weekend project.
Get precise measurements tailored to your location and window specifications.
Start Designing