Where shading isn't practical, rented flats, listed windows, whole roofs and render, a reflective film or coating does a similar job in a thinner layer. The same white-render logic that keeps Andalusian courtyards cool, adapted for UK glazing and masonry.
Reflective masonry paint for walls and render, based on traditional Mediterranean whitewash.
Higher-spec ceramic nanoparticle film for maximum heat rejection with minimal visible tint.
Multi-layer film applied to existing glass, cutting glare and heat without changing the view.