Sun orientation is one of the most critical decisions in Las Vegas home design because of the intense east-west exposure. Homes with west-facing windows can become uncomfortably hot in the afternoon, and prolonged sun exposure will bleach flooring, furniture, and interior finishes. To prevent this, the design team plans room orientation, window placement, and roof overhangs before construction begins. Modern 3D software simulates exactly how shadows will fall across the home during every season, so sun problems are solved in the design phase rather than discovered after move-in.