From Lyle Hill the Firth of Clyde opens toward the Cowal hills. Wind that feels brisk on the viewpoint is the same weather that presses on front elevations along the esplanade and on houses that look straight at the water.
A survey on an exposed Greenock street notes orientation as carefully as style. Rooms facing the firth may justify different glass from a sheltered back elevation. That is where conversations about triple glazing often begin — not as a slogan for every window, but as an option where exposure asks for more.
We do not invent wind-load figures or legal requirements here. The surveyor confirms what the property needs. For the wider service picture, see double glazing in Greenock.