Programmatic Vastu × IS 3792 Reference
Window Vastu + Climate Guide
Window size, sill height, glazing and type for every Indian city, every compass direction, every room — calibrated to Vastu Shastra (Manasara, Mayamatam) and IS 3792 climate zones.
Browse by city
Each city is mapped to one of seven IS 3792 climate zones — that resolves whether your windows want to fight the heat (Hot-Dry), bleed it out via cross-ventilation (Warm-Humid), or harvest winter sun (Cold). Pick your city to start.
76 more cities resolve via direct URL (e.g. /tools/window-guide/jodhpur/north/master-bedroom).
Browse by direction
Vastu maps each compass direction to a presiding deity and a fundamental element. The deity determines what the direction is good for — not just structurally, but in terms of how the home feels.
Browse by room
Each room has its own ideal Vastu placement and its own window job. A pooja-room window wants morning light on a deity; a kitchen window wants exhaust over a cooktop; a master-bedroom window wants cross-ventilation without an early-sun alarm. The recommendations honour all three.
Window guide — climate + Vastu recommendations
This result is a concept-stage calculation based on the inputs provided. It is intended as a starting point for your own research and conversations with the relevant professionals.
Window-size and placement guidance is derived from IS 3792 climate-zone classifications and NBC 2016 fenestration norms, cross-referenced with traditional Vastu directional preferences. Local building bye-laws may impose additional minimums (light + ventilation area, setback-from-boundary, fire safety). Confirm with your architect and local municipal authority before finalising joinery.
Please verify final numbers with a licensed architect, structural engineer, registered surveyor, or municipal authority as relevant before any binding decision. GrehYug provides concept guidance only — not a substitute for professional advice.