Short answer: Cross ventilation — windows placed on opposite sides of a room — lets air circulate
naturally and reduces the need for mechanical cooling, often achieved through large sliding doors,
narrow vertical windows, and high clerestory openings.
Why it matters: Window placement is a comfort and energy-cost decision, not just an aesthetic one,
and it requires coordination between architect and builder to execute well.
What to check:
● Ask your architect specifically how cross ventilation is planned for your main living spaces
● Balance ventilation strategy against privacy and storm-resistance needs for the same openings
● Consider clerestory or high openings for rooms where privacy limits standard cross-ventilation
options
Bottom line: Smart window placement can meaningfully cut your reliance on air conditioning — it’s a
design decision worth discussing early, not an afterthought.