Afternoon Sun Control on S/W

Vedic tradition links S/W sun control to Yama's discipline — the south wall is 'Yama's boundary' and should be fortified. Prescribes thicker S/W walls (1.5x to 2x width of N/E walls) as thermal mass strategy.

Maharashtrian Wadas feature the thickest S/W walls in Indian domestic architecture — often 2-3 feet of basalt stone. Deep wooden chajja overhangs on S/W sides extend 3-4 feet. The chowk's vertical proportions create stack-effect ventilation that cools without admitting direct sun.

Chettinad mansions have walls up to 3 feet thick on S/W sides made from egg-white-bonded lime plaster — exceptional thermal mass. Thinnai verandahs on S/W sides absorb afternoon heat before it reaches interior rooms. Red oxide flooring stays cool despite south-facing orientation.

Kakatiya stone jali work allows air circulation through S/W walls without direct sun entry — a masterful balance of ventilation and shading. The 'stepped wall' technique — offsetting S/W wall surfaces to create self-shading — is a signature Kakatiya innovation.

Hoysala soapstone walls have exceptional thermal capacity — S/W walls absorb daytime heat slowly, releasing it at night (thermal flywheel effect). Deep sculptural recesses on S/W facades create intricate self-shading patterns. Jain philosophical concept of 'kshama' (forbearance) extends to the building tolerating — not inviting — harsh sun.

Kerala's distinctive sloped-roof overhangs (Charupadi) are the primary S/W shading device — extending 3-4 feet beyond the wall line. Laterite walls (2+ ft thick) on S/W provide thermal mass. Dense coconut and mango plantations on S/W property boundaries serve as bio-shading. Few S/W windows exist in traditional Nalukettu homes.

Rajasthani-Gujarati jaali screens on S/W walls are the finest in India — allowing 5% light transmission while blocking 95% of thermal radiation. Deep chajjas (up to 4 feet) create complete shade on S/W walls during summer. Sandstone thermal mass walls (2-3 ft thick) delay heat transfer by 8-10 hours, releasing stored heat at night when desert temperatures drop.

Bengali architecture uses bamboo chik (roll-up screens) on west-facing openings — seasonally adjustable and naturally ventilating. The dalan's deep eaves on S/W sides extend 3-4 feet. Terracotta wall panels on S/W facades absorb heat slowly. High-set ventilator windows on south walls admit light but not direct sun.

Kalinga temple-inspired domestic architecture uses deep jagamohana-style porches on S/W sides. Thick laterite walls on south provide both structural strength and thermal mass. Western boundary plantations (banana, neem) serve as living shade screens. The tradition of 'Bada Ghara' having smallest windows on S/W is strictly followed.

Punjab's extreme continental climate (45°C+ summers) demands aggressive S/W sun control. Thick pakka (fired brick) walls on S/W (18-24 inches). Deep verandahs (dallan) on west side serve as evening gathering space — shaded from afternoon sun but open to cooler evening breezes. The Barsati (upper-floor room for monsoon) doubles as S/W heat buffer.